test: single simple program

1. changes weren't refreshed for windows/linux-mesa vulkan. This
   is due to a reordering of the shaders when the shader source
   is replaced. We fix this by ensuring the ordering before
   writing out the edit.
   Fixes #7286

2. A condition was flipped in the SourceFormatter causing the
   format feature to not work on linux

3. The material update status wasn't really propagated to the
   front-end due to not updating the status counter.

NEW_RELEASE_NOTES.md

@@ -8,5 +8,4 @@ appropriate header in [RELEASE_NOTES.md](./RELEASE_NOTES.md).
 
 ## Release notes for next branch cut
 
-- matdbg: Add support for debugging ESSL 1.0 shaders
+- Support including PlatformMetal.h in C++ files.
-- backend: New platform API to better handle external textures [⚠️ **New Material Version**]

README.md

@@ -31,7 +31,7 @@ repositories {
 }
 
 dependencies {
-    implementation 'com.google.android.filament:filament-android:1.56.7'
+    implementation 'com.google.android.filament:filament-android:1.57.0'
 }
 ```
 
@@ -51,7 +51,7 @@ Here are all the libraries available in the group `com.google.android.filament`:
 iOS projects can use CocoaPods to install the latest release:
 
 ```shell
-pod 'Filament', '~> 1.56.7'
+pod 'Filament', '~> 1.57.0'
 ```
 
 ## Documentation

RELEASE_NOTES.md

@@ -7,6 +7,14 @@ A new header is inserted each time a *tag* is created.
 Instead, if you are authoring a PR for the main branch, add your release note to
 [NEW_RELEASE_NOTES.md](./NEW_RELEASE_NOTES.md).
 
+## v1.57.1
+
+
+## v1.57.0
+
+- matdbg: Add support for debugging ESSL 1.0 shaders
+- backend: New platform API to better handle external textures [⚠️ **New Material Version**]
+
 ## v1.56.8
 
 

android/filament-android/src/main/cpp/MaterialInstance.cpp

@@ -329,6 +329,18 @@ Java_com_google_android_filament_MaterialInstance_nSetCullingMode(JNIEnv*,
     instance->setCullingMode((MaterialInstance::CullingMode) cullingMode);
 }
 
+
+extern "C"
+JNIEXPORT void JNICALL
+Java_com_google_android_filament_MaterialInstance_nSetCullingModeSeparate(JNIEnv*, jclass,
+        jlong nativeMaterialInstance,
+        jlong colorPassCullingMode, jlong shadowPassCullingMode) {
+    MaterialInstance* instance = (MaterialInstance*) nativeMaterialInstance;
+    instance->setCullingMode(
+            (MaterialInstance::CullingMode) colorPassCullingMode,
+            (MaterialInstance::CullingMode) shadowPassCullingMode);
+}
+
 extern "C"
 JNIEXPORT void JNICALL
 Java_com_google_android_filament_MaterialInstance_nSetColorWrite(JNIEnv*,
@@ -505,6 +517,14 @@ Java_com_google_android_filament_MaterialInstance_nGetCullingMode(JNIEnv* env, j
     return (jint)instance->getCullingMode();
 }
 
+extern "C"
+JNIEXPORT jint JNICALL
+Java_com_google_android_filament_MaterialInstance_nGetShadowCullingMode(JNIEnv* env, jclass,
+        jlong nativeMaterialInstance) {
+    MaterialInstance* instance = (MaterialInstance*)nativeMaterialInstance;
+    return (jint)instance->getShadowCullingMode();
+}
+
 extern "C"
 JNIEXPORT jboolean JNICALL
 Java_com_google_android_filament_MaterialInstance_nIsColorWriteEnabled(JNIEnv* env, jclass clazz,

android/filament-android/src/main/java/com/google/android/filament/MaterialInstance.java

@@ -556,6 +556,20 @@ public class MaterialInstance {
         nSetCullingMode(getNativeObject(), mode.ordinal());
     }
 
+    /**
+     * Overrides the default triangle culling state that was set on the material separately for the
+     * color and shadow passes
+     *
+     * @see
+     * <a href="https://google.github.io/filament/Materials.html#materialdefinitions/materialblock/rasterization:culling">
+     * Rasterization: culling</a>
+     */
+    public void setCullingMode(@NonNull Material.CullingMode colorPassCullingMode,
+                               @NonNull Material.CullingMode shadowPassCullingMode) {
+        nSetCullingModeSeparate(getNativeObject(),
+            colorPassCullingMode.ordinal(), shadowPassCullingMode.ordinal());
+    }
+
     /**
      * Returns the face culling mode.
      */
@@ -564,6 +578,14 @@ public class MaterialInstance {
         return sCullingModeValues[nGetCullingMode(getNativeObject())];
     }
 
+    /**
+     * Returns the face culling mode for the shadow passes.
+     */
+    @NonNull
+    public Material.CullingMode getShadowCullingMode() {
+        return sCullingModeValues[nGetShadowCullingMode(getNativeObject())];
+    }
+
     /**
      * Overrides the default color-buffer write state that was set on the material.
      *
@@ -920,6 +942,8 @@ public class MaterialInstance {
 
     private static native void nSetDoubleSided(long nativeMaterialInstance, boolean doubleSided);
     private static native void nSetCullingMode(long nativeMaterialInstance, long mode);
+    private static native void nSetCullingModeSeparate(long nativeMaterialInstance,
+            long colorPassCullingMode, long shadowPassCullingMode);
     private static native void nSetColorWrite(long nativeMaterialInstance, boolean enable);
     private static native void nSetDepthWrite(long nativeMaterialInstance, boolean enable);
     private static native void nSetStencilWrite(long nativeMaterialInstance, boolean enable);
@@ -952,6 +976,7 @@ public class MaterialInstance {
     private static native float nGetSpecularAntiAliasingThreshold(long nativeMaterialInstance);
     private static native boolean nIsDoubleSided(long nativeMaterialInstance);
     private static native int nGetCullingMode(long nativeMaterialInstance);
+    private static native int nGetShadowCullingMode(long nativeMaterialInstance);
     private static native boolean nIsColorWriteEnabled(long nativeMaterialInstance);
     private static native boolean nIsDepthWriteEnabled(long nativeMaterialInstance);
     private static native boolean nIsStencilWriteEnabled(long nativeMaterialInstance);

android/gradle.properties

@@ -1,5 +1,5 @@
 GROUP=com.google.android.filament
-VERSION_NAME=1.56.7
+VERSION_NAME=1.57.0
 
 POM_DESCRIPTION=Real-time physically based rendering engine for Android.
 

filament/backend/include/backend/Platform.h

@@ -79,6 +79,10 @@ public:
 
         void clear() noexcept;
         void reset(ExternalImage* UTILS_NULLABLE p) noexcept;
+
+    private:
+        friend utils::io::ostream& operator<<(utils::io::ostream& out,
+                ExternalImageHandle const& handle);
     };
 
     using ExternalImageHandleRef = ExternalImageHandle const&;
@@ -165,7 +169,7 @@ public:
      *
      * @return nullptr on failure, or a pointer to the newly created driver.
      */
-    virtual backend::Driver* UTILS_NULLABLE createDriver(void* UTILS_NULLABLE sharedContext,
+    virtual Driver* UTILS_NULLABLE createDriver(void* UTILS_NULLABLE sharedContext,
             const DriverConfig& driverConfig) noexcept = 0;
 
     /**

filament/backend/include/backend/platforms/OpenGLPlatform.h

@@ -23,6 +23,7 @@
 
 #include <utils/compiler.h>
 #include <utils/Invocable.h>
+#include <utils/CString.h>
 
 #include <stddef.h>
 #include <stdint.h>
@@ -56,6 +57,18 @@ public:
         unsigned int id; // GLuint id
     };
 
+    /**
+     * Return the OpenGL vendor string of the specified Driver instance.
+     * @return The GL_VENDOR string
+     */
+    static utils::CString getVendorString(Driver const* UTILS_NONNULL driver);
+
+    /**
+     * Return the OpenGL vendor string of the specified Driver instance
+     * @return The GL_RENDERER string
+     */
+    static utils::CString getRendererString(Driver const* UTILS_NONNULL driver);
+
     /**
      * Called by the driver to destroy the OpenGL context. This should clean up any windows
      * or buffers from initialization. This is for instance where `eglDestroyContext` would be

filament/backend/include/backend/platforms/PlatformCocoaGL.h

@@ -17,7 +17,6 @@
 #ifndef TNT_FILAMENT_BACKEND_OPENGL_OPENGL_PLATFORM_COCOA_GL_H
 #define TNT_FILAMENT_BACKEND_OPENGL_OPENGL_PLATFORM_COCOA_GL_H
 
-#include <backend/DriverEnums.h>
 #include <backend/platforms/OpenGLPlatform.h>
 
 #include <stdint.h>

filament/backend/include/backend/platforms/PlatformEGL.h

@@ -80,8 +80,7 @@ protected:
      * Initializes EGL, creates the OpenGL context and returns a concrete Driver implementation
      * that supports OpenGL/OpenGL ES.
      */
-    Driver* createDriver(void* sharedContext,
+    Driver* createDriver(void* sharedContext, const DriverConfig& driverConfig) noexcept override;
-            const Platform::DriverConfig& driverConfig) noexcept override;
 
     /**
      * This returns zero. This method can be overridden to return something more useful.

filament/backend/include/backend/platforms/PlatformMetal-ObjC.h

@@ -0,0 +1,38 @@
+/*
+ * Copyright (C) 2025 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef TNT_FILAMENT_BACKEND_PRIVATE_PLATFORMMETAL_OBJC_H
+#define TNT_FILAMENT_BACKEND_PRIVATE_PLATFORMMETAL_OBJC_H
+
+#import <Metal/Metal.h>
+
+namespace filament::backend {
+
+struct MetalDevice {
+    id<MTLDevice> device;
+};
+
+struct MetalCommandQueue {
+    id<MTLCommandQueue> commandQueue;
+};
+
+struct MetalCommandBuffer {
+    id<MTLCommandBuffer> commandBuffer;
+};
+
+} // namespace filament::backend
+
+#endif // TNT_FILAMENT_BACKEND_PRIVATE_PLATFORMMETAL_OBJC_H

filament/backend/include/backend/platforms/PlatformMetal.h

@@ -20,12 +20,17 @@
 #include <backend/DriverEnums.h>
 #include <backend/Platform.h>
 
-#import <Metal/Metal.h>
-
 namespace filament::backend {
 
 struct PlatformMetalImpl;
 
+// In order for this header to be compatible with Objective-C and C++, we use these wrappers around
+// id<MTL*> objects.
+// See PlatformMetal-Objc.h.
+struct MetalDevice;
+struct MetalCommandQueue;
+struct MetalCommandBuffer;
+
 class PlatformMetal final : public Platform {
 public:
     PlatformMetal();
@@ -41,21 +46,22 @@ public:
      * free to decide which one to use. On mobile systems with a single GPU, implementations should
      * simply return the result of MTLCreateSystemDefaultDevice();
      */
-    virtual id<MTLDevice> createDevice() noexcept;
+    virtual void createDevice(MetalDevice& outDevice) noexcept;
 
     /**
      * Create a command submission queue on the Metal device object.
      *
      * @param device The device which was returned from createDevice()
      */
-    virtual id<MTLCommandQueue> createCommandQueue(id<MTLDevice> device) noexcept;
+    virtual void createCommandQueue(
+            MetalDevice& device, MetalCommandQueue& outCommandQueue) noexcept;
 
     /**
      * Obtain a MTLCommandBuffer enqueued on this Platform's MTLCommandQueue. The command buffer is
      * guaranteed to execute before all subsequent command buffers created either by Filament, or
      * further calls to this method.
      */
-    id<MTLCommandBuffer> createAndEnqueueCommandBuffer() noexcept;
+    void createAndEnqueueCommandBuffer(MetalCommandBuffer& outCommandBuffer) noexcept;
 
     /**
      * The action to take if a Drawable cannot be acquired.

filament/backend/include/backend/platforms/VulkanPlatform.h

@@ -71,6 +71,9 @@ public:
         // where the gpu only has one graphics queue. Then the client needs to ensure that no
         // concurrent access can occur.
         uint32_t graphicsQueueIndex = 0xFFFFFFFF;
+        bool debugUtilsSupported = false;
+        bool debugMarkersSupported = false;
+        bool multiviewSupported = false;
     };
 
     /**
@@ -88,6 +91,7 @@ public:
         VkFormat colorFormat = VK_FORMAT_UNDEFINED;
         VkFormat depthFormat = VK_FORMAT_UNDEFINED;
         VkExtent2D extent = {0, 0};
+        uint32_t layerCount = 1;
         bool isProtected = false;
     };
 
@@ -303,6 +307,11 @@ public:
          */
         uint32_t height;
 
+        /**
+         * The layerCount of the external image
+         */
+        uint32_t layerCount;
+
         /**
          * The layer count of the external image
          */

filament/backend/include/private/backend/CommandStream.h

@@ -50,7 +50,7 @@
 #include <stdint.h>
 
 // Set to true to print every command out on log.d. This requires RTTI and DEBUG
-#define DEBUG_COMMAND_STREAM false
+#define DEBUG_COMMAND_STREAM true
 
 namespace filament::backend {
 

filament/backend/src/Platform.cpp

@@ -35,12 +35,13 @@ void Platform::ExternalImageHandle::incref(ExternalImage* p) noexcept {
 
 void Platform::ExternalImageHandle::decref(ExternalImage* p) noexcept {
     if (p) {
-        // When decrementing the ref-count, unless it reaches zero, there is no need to acquire data; we need to
+        // When decrementing the ref-count, unless it reaches zero, there is no need to acquire
-        // release all previous writes though so they can be visible to the thread that will actually delete the
+        // data; we need to release all previous writes though so they can be visible to the thread
-        // object.
+        // that will actually delete the object.
         if (p->mRefCount.fetch_sub(1, std::memory_order_release) == 1) {
-            // if we reach zero, we're about to delete the object, we need to acquire all previous writes from other
+            // if we reach zero, we're about to delete the object, we need to acquire all previous
-            // threads (i.e.: the memory from other threads prior to the decref() need to be visible now.
+            // writes from other threads (i.e.: the memory from other threads prior to the decref()
+            // need to be visible now.
             std::atomic_thread_fence(std::memory_order_acquire);
             delete p;
         }
@@ -68,7 +69,8 @@ Platform::ExternalImageHandle::ExternalImageHandle(ExternalImageHandle&& rhs) no
     rhs.mTarget = nullptr;
 }
 
-Platform::ExternalImageHandle& Platform::ExternalImageHandle::operator=(ExternalImageHandle const& rhs) noexcept {
+Platform::ExternalImageHandle& Platform::ExternalImageHandle::operator=(
+        ExternalImageHandle const& rhs) noexcept {
     if (UTILS_LIKELY(this != &rhs)) {
         incref(rhs.mTarget);
         decref(mTarget);
@@ -77,7 +79,8 @@ Platform::ExternalImageHandle& Platform::ExternalImageHandle::operator=(External
     return *this;
 }
 
-Platform::ExternalImageHandle& Platform::ExternalImageHandle::operator=(ExternalImageHandle&& rhs) noexcept {
+Platform::ExternalImageHandle& Platform::ExternalImageHandle::operator=(
+        ExternalImageHandle&& rhs) noexcept {
     if (UTILS_LIKELY(this != &rhs)) {
         decref(mTarget);
         mTarget = rhs.mTarget;
@@ -97,6 +100,12 @@ void Platform::ExternalImageHandle::reset(ExternalImage* p) noexcept {
     mTarget = p;
 }
 
+utils::io::ostream& operator<<(utils::io::ostream& out,
+        Platform::ExternalImageHandle const& handle) {
+    out << "ExternalImageHandle{" << handle.mTarget << "}";
+    return out;
+}
+
 // --------------------------------------------------------------------------------------------------------------------
 
 Platform::ExternalImage::~ExternalImage() noexcept = default;

filament/backend/src/metal/MetalDriver.mm

@@ -31,6 +31,7 @@
 #include "MetalTimerQuery.h"
 
 #include <backend/platforms/PlatformMetal.h>
+#include <backend/platforms/PlatformMetal-ObjC.h>
 
 #include <CoreVideo/CVMetalTexture.h>
 #include <CoreVideo/CVPixelBuffer.h>
@@ -120,7 +121,10 @@ MetalDriver::MetalDriver(
     TrackedMetalBuffer::setPlatform(platform);
     ScopedAllocationTimer::setPlatform(platform);
 
-    mContext->device = mPlatform.createDevice();
+    MetalDevice device;
+    device.device = nil;
+    mPlatform.createDevice(device);
+    mContext->device = device.device;
     assert_invariant(mContext->device);
 
     mContext->emptyBuffer = [mContext->device newBufferWithLength:16
@@ -186,7 +190,12 @@ MetalDriver::MetalDriver(
             [mContext->device.name containsString:@"Apple A8 GPU"] ||
             [mContext->device.name containsString:@"Apple A7 GPU"];
 
-    mContext->commandQueue = mPlatform.createCommandQueue(mContext->device);
+    MetalCommandQueue commandQueue;
+    commandQueue.commandQueue = nil;
+    mPlatform.createCommandQueue(device, commandQueue);
+    assert_invariant(commandQueue.commandQueue);
+
+    mContext->commandQueue = commandQueue.commandQueue;
     mContext->pipelineStateCache.setDevice(mContext->device);
     mContext->depthStencilStateCache.setDevice(mContext->device);
     mContext->samplerStateCache.setDevice(mContext->device);

filament/backend/src/metal/PlatformMetal.mm

@@ -15,6 +15,7 @@
  */
 
 #include <backend/platforms/PlatformMetal.h>
+#include <backend/platforms/PlatformMetal-ObjC.h>
 
 #include "MetalDriverFactory.h"
 
@@ -47,7 +48,7 @@ Driver* PlatformMetal::createDriver(void* /*sharedContext*/, const Platform::Dri
     return MetalDriverFactory::create(this, driverConfig);
 }
 
-id<MTLDevice> PlatformMetal::createDevice() noexcept {
+void PlatformMetal::createDevice(MetalDevice& outDevice) noexcept {
     id<MTLDevice> result;
 
 #if !defined(FILAMENT_IOS)
@@ -72,19 +73,20 @@ id<MTLDevice> PlatformMetal::createDevice() noexcept {
                   << [result.name cStringUsingEncoding:NSUTF8StringEncoding] << "'"
                   << utils::io::endl;
 
-    return result;
+    outDevice.device = result;
 }
 
-id<MTLCommandQueue> PlatformMetal::createCommandQueue(id<MTLDevice> device) noexcept {
+void PlatformMetal::createCommandQueue(
-    pImpl->mCommandQueue = [device newCommandQueue];
+        MetalDevice& device, MetalCommandQueue& outCommandQueue) noexcept {
+    pImpl->mCommandQueue = [device.device newCommandQueue];
     pImpl->mCommandQueue.label = @"Filament";
-    return pImpl->mCommandQueue;
+    outCommandQueue.commandQueue = pImpl->mCommandQueue;
 }
 
-id<MTLCommandBuffer> PlatformMetal::createAndEnqueueCommandBuffer() noexcept {
+void PlatformMetal::createAndEnqueueCommandBuffer(MetalCommandBuffer& outCommandBuffer) noexcept {
     id<MTLCommandBuffer> commandBuffer = [pImpl->mCommandQueue commandBuffer];
     [commandBuffer enqueue];
-    return commandBuffer;
+    outCommandBuffer.commandBuffer = commandBuffer;
 }
 
 void PlatformMetal::setDrawableFailureBehavior(DrawableFailureBehavior behavior) noexcept {

filament/backend/src/noop/NoopDriver.cpp

@@ -14,6 +14,9 @@
  * limitations under the License.
  */
 
+#include <backend/DriverEnums.h>
+#include <backend/Handle.h>
+
 #include "noop/NoopDriver.h"
 #include "CommandStreamDispatcher.h"
 

filament/backend/src/opengl/OpenGLDriver.cpp

@@ -39,6 +39,7 @@
 #include <backend/Program.h>
 #include <backend/TargetBufferInfo.h>
 
+#include "private/backend/CommandStream.h"
 #include "private/backend/Dispatcher.h"
 #include "private/backend/DriverApi.h"
 
@@ -46,9 +47,11 @@
 #include <utils/BitmaskEnum.h>
 #include <utils/FixedCapacityVector.h>
 #include <utils/CString.h>
+#include <utils/Invocable.h>
 #include <utils/Log.h>
 #include <utils/Panic.h>
 #include <utils/Systrace.h>
+#include <utils/Slice.h>
 #include <utils/compiler.h>
 #include <utils/debug.h>
 #include <utils/ostream.h>
@@ -154,8 +157,8 @@ using namespace GLUtils;
 // ------------------------------------------------------------------------------------------------
 
 UTILS_NOINLINE
-Driver* OpenGLDriver::create(OpenGLPlatform* const platform,
+OpenGLDriver* OpenGLDriver::create(OpenGLPlatform* const platform,
-        void* const sharedGLContext, const Platform::DriverConfig& driverConfig) noexcept {
+        void* const /*sharedGLContext*/, const Platform::DriverConfig& driverConfig) noexcept {
     assert_invariant(platform);
     OpenGLPlatform* const ec = platform;
 
@@ -222,7 +225,7 @@ Driver* OpenGLDriver::create(OpenGLPlatform* const platform,
     }
 #endif
 
-    size_t const defaultSize = FILAMENT_OPENGL_HANDLE_ARENA_SIZE_IN_MB * 1024U * 1024U;
+    constexpr size_t defaultSize = FILAMENT_OPENGL_HANDLE_ARENA_SIZE_IN_MB * 1024U * 1024U;
     Platform::DriverConfig validConfig{ driverConfig };
     validConfig.handleArenaSize = std::max(driverConfig.handleArenaSize, defaultSize);
     OpenGLDriver* const driver = new(std::nothrow) OpenGLDriver(ec, validConfig);
@@ -277,7 +280,6 @@ OpenGLDriver::OpenGLDriver(OpenGLPlatform* platform, const Platform::DriverConfi
                   driverConfig.disableHandleUseAfterFreeCheck),
           mDriverConfig(driverConfig),
           mCurrentPushConstants(new(std::nothrow) PushConstantBundle{}) {
-
     // set a reasonable default value for our stream array
     mTexturesWithStreamsAttached.reserve(8);
     mStreamsWithPendingAcquiredImage.reserve(8);
@@ -366,8 +368,8 @@ void OpenGLDriver::bindSampler(GLuint unit, GLuint sampler) noexcept {
     mContext.bindSampler(unit, sampler);
 }
 
-void OpenGLDriver::setPushConstant(backend::ShaderStage stage, uint8_t index,
+void OpenGLDriver::setPushConstant(ShaderStage stage, uint8_t index,
-        backend::PushConstantVariant value) {
+        PushConstantVariant value) {
     assert_invariant(stage == ShaderStage::VERTEX || stage == ShaderStage::FRAGMENT);
 
 #if FILAMENT_ENABLE_MATDBG
@@ -376,7 +378,7 @@ void OpenGLDriver::setPushConstant(backend::ShaderStage stage, uint8_t index,
     }
 #endif
 
-    utils::Slice<std::pair<GLint, ConstantType>> constants;
+    Slice<std::pair<GLint, ConstantType>> constants;
     if (stage == ShaderStage::VERTEX) {
         constants = mCurrentPushConstants->vertexConstants;
     } else if (stage == ShaderStage::FRAGMENT) {
@@ -681,7 +683,7 @@ void OpenGLDriver::createBufferObjectR(Handle<HwBufferObject> boh,
         bo->gl.buffer = malloc(byteCount);
         memset(bo->gl.buffer, 0, byteCount);
     } else {
-        bo->gl.binding = GLUtils::getBufferBindingType(bindingType);
+        bo->gl.binding = getBufferBindingType(bindingType);
         glGenBuffers(1, &bo->gl.id);
         gl.bindBuffer(bo->gl.binding, bo->gl.id);
         glBufferData(bo->gl.binding, byteCount, nullptr, getBufferUsage(usage));
@@ -758,7 +760,7 @@ void OpenGLDriver::createProgramR(Handle<HwProgram> ph, Program&& program) {
 }
 
 UTILS_NOINLINE
-void OpenGLDriver::textureStorage(OpenGLDriver::GLTexture* t,
+void OpenGLDriver::textureStorage(GLTexture* t,
         uint32_t width, uint32_t height, uint32_t depth, bool useProtectedMemory) noexcept {
 
     auto& gl = mContext;
@@ -1144,7 +1146,7 @@ void OpenGLDriver::createTextureExternalImageR(Handle<HwTexture> th, SamplerType
 }
 
 void OpenGLDriver::createTextureExternalImagePlaneR(Handle<HwTexture> th,
-        backend::TextureFormat format, uint32_t width, uint32_t height, backend::TextureUsage usage,
+        TextureFormat format, uint32_t width, uint32_t height, TextureUsage usage,
         void* image, uint32_t plane) {
     // not relevant for the OpenGL backend
 }
@@ -1460,7 +1462,7 @@ void OpenGLDriver::framebufferTexture(TargetBufferInfo const& binfo,
         && ((gl.ext.EXT_multisampled_render_to_texture && attachment == GL_COLOR_ATTACHMENT0)
             || gl.ext.EXT_multisampled_render_to_texture2)) {
         assert_invariant(rt->gl.samples > 1);
-        // We have a multi-sample rendertarget and we have EXT_multisampled_render_to_texture,
+        // We have a multi-sample rendertarget, and we have EXT_multisampled_render_to_texture,
         // so, we can directly use a 1-sample texture as attachment, multi-sample resolve,
         // will happen automagically and efficiently in the driver.
         // This extension only exists on OpenGL ES.
@@ -1660,9 +1662,9 @@ void OpenGLDriver::createRenderTargetR(Handle<HwRenderTarget> rth,
     rt->gl.samples = samples;
     rt->targets = targets;
 
-    UTILS_UNUSED_IN_RELEASE math::vec2<uint32_t> tmin = { std::numeric_limits<uint32_t>::max() };
+    UTILS_UNUSED_IN_RELEASE vec2<uint32_t> tmin = { std::numeric_limits<uint32_t>::max() };
-    UTILS_UNUSED_IN_RELEASE math::vec2<uint32_t> tmax = { 0 };
+    UTILS_UNUSED_IN_RELEASE vec2<uint32_t> tmax = { 0 };
-    auto checkDimensions = [&tmin, &tmax](GLTexture* t, uint8_t level) {
+    auto checkDimensions = [&tmin, &tmax](GLTexture const* t, uint8_t level) {
         const auto twidth = std::max(1u, t->width >> level);
         const auto theight = std::max(1u, t->height >> level);
         tmin = { std::min(tmin.x, twidth), std::min(tmin.y, theight) };
@@ -2364,11 +2366,11 @@ bool OpenGLDriver::isStereoSupported() {
         return false;
     }
     switch (mDriverConfig.stereoscopicType) {
-        case backend::StereoscopicType::INSTANCED:
+        case StereoscopicType::INSTANCED:
             return mContext.ext.EXT_clip_cull_distance;
-        case backend::StereoscopicType::MULTIVIEW:
+        case StereoscopicType::MULTIVIEW:
             return mContext.ext.OVR_multiview2;
-        case backend::StereoscopicType::NONE:
+        case StereoscopicType::NONE:
             return false;
     }
 }
@@ -2381,7 +2383,7 @@ bool OpenGLDriver::isDepthStencilResolveSupported() {
     return true;
 }
 
-bool OpenGLDriver::isDepthStencilBlitSupported(TextureFormat format) {
+bool OpenGLDriver::isDepthStencilBlitSupported(TextureFormat) {
     return true;
 }
 
@@ -2415,12 +2417,12 @@ FeatureLevel OpenGLDriver::getFeatureLevel() {
     return mContext.getFeatureLevel();
 }
 
-math::float2 OpenGLDriver::getClipSpaceParams() {
+float2 OpenGLDriver::getClipSpaceParams() {
     return mContext.ext.EXT_clip_control ?
            // z-coordinate of virtual and physical clip-space is in [-w, 0]
-           math::float2{ 1.0f, 0.0f } :
+           float2{ 1.0f, 0.0f } :
            // z-coordinate of virtual clip-space is in [-w,0], physical is in [-w, w]
-           math::float2{ 2.0f, -1.0f };
+           float2{ 2.0f, -1.0f };
 }
 
 uint8_t OpenGLDriver::getMaxDrawBuffers() {
@@ -2484,7 +2486,7 @@ void OpenGLDriver::makeCurrent(Handle<HwSwapChain> schDraw, Handle<HwSwapChain>
 // Updating driver objects
 // ------------------------------------------------------------------------------------------------
 
-void OpenGLDriver::setDebugTag(HandleBase::HandleId handleId, utils::CString tag) {
+void OpenGLDriver::setDebugTag(HandleBase::HandleId handleId, CString tag) {
     mHandleAllocator.associateTagToHandle(handleId, std::move(tag));
 }
 
@@ -2660,7 +2662,7 @@ void OpenGLDriver::generateMipmaps(Handle<HwTexture> th) {
     CHECK_GL_ERROR(utils::slog.e)
 }
 
-void OpenGLDriver::setTextureData(GLTexture* t, uint32_t level,
+void OpenGLDriver::setTextureData(GLTexture const* t, uint32_t level,
         uint32_t xoffset, uint32_t yoffset, uint32_t zoffset,
         uint32_t width, uint32_t height, uint32_t depth,
         PixelBufferDescriptor&& p) {
@@ -2769,7 +2771,7 @@ void OpenGLDriver::setTextureData(GLTexture* t, uint32_t level,
     CHECK_GL_ERROR(utils::slog.e)
 }
 
-void OpenGLDriver::setCompressedTextureData(GLTexture* t, uint32_t level,
+void OpenGLDriver::setCompressedTextureData(GLTexture const* t, uint32_t level,
         uint32_t xoffset, uint32_t yoffset, uint32_t zoffset,
         uint32_t width, uint32_t height, uint32_t depth,
         PixelBufferDescriptor&& p) {
@@ -3410,8 +3412,8 @@ void OpenGLDriver::readPixels(Handle<HwRenderTarget> src,
 #endif
 }
 
-void OpenGLDriver::readBufferSubData(backend::BufferObjectHandle boh,
+void OpenGLDriver::readBufferSubData(BufferObjectHandle boh,
-        uint32_t offset, uint32_t size, backend::BufferDescriptor&& p) {
+        uint32_t offset, uint32_t size, BufferDescriptor&& p) {
     UTILS_UNUSED_IN_RELEASE auto& gl = mContext;
     assert_invariant(!gl.isES2());
 
@@ -3489,14 +3491,6 @@ void OpenGLDriver::whenFrameComplete(const std::function<void()>& fn) noexcept {
 
 void OpenGLDriver::whenGpuCommandsComplete(const std::function<void()>& fn) noexcept {
     GLsync sync = glFenceSync(GL_SYNC_GPU_COMMANDS_COMPLETE, 0);
-    // glFenceSync can return 0 in certain situations. For example, we've seen this happen on Web
-    // when the GL context has been lost.
-    // Unfortunately, there's not much we can do here. The fn callback will never execute, which
-    // could cause issues. If we've lost the WebGL context though, Filament is most likely shutting
-    // down anyway, so in practice this might not be a big problem.
-    if (!sync) {
-        return;
-    }
     mGpuCommandCompleteOps.emplace_back(sync, fn);
     CHECK_GL_ERROR(utils::slog.e)
 }
@@ -3566,13 +3560,13 @@ void OpenGLDriver::beginFrame(
     }
 }
 
-void OpenGLDriver::setFrameScheduledCallback(Handle<HwSwapChain> sch, CallbackHandler* handler,
+void OpenGLDriver::setFrameScheduledCallback(Handle<HwSwapChain>, CallbackHandler*,
-        FrameScheduledCallback&& callback, uint64_t flags) {
+        FrameScheduledCallback&& /*callback*/, uint64_t /*flags*/) {
     DEBUG_MARKER()
 }
 
-void OpenGLDriver::setFrameCompletedCallback(Handle<HwSwapChain> sch,
+void OpenGLDriver::setFrameCompletedCallback(Handle<HwSwapChain>,
-        CallbackHandler* handler, utils::Invocable<void(void)>&& callback) {
+        CallbackHandler*, Invocable<void()>&& /*callback*/) {
     DEBUG_MARKER()
 }
 
@@ -3603,9 +3597,9 @@ void OpenGLDriver::endFrame(UTILS_UNUSED uint32_t frameId) {
 }
 
 void OpenGLDriver::updateDescriptorSetBuffer(
-        backend::DescriptorSetHandle dsh,
+        DescriptorSetHandle dsh,
-        backend::descriptor_binding_t binding,
+        descriptor_binding_t binding,
-        backend::BufferObjectHandle boh,
+        BufferObjectHandle boh,
         uint32_t offset, uint32_t size) {
     GLDescriptorSet* ds = handle_cast<GLDescriptorSet*>(dsh);
     GLBufferObject* bo = boh ? handle_cast<GLBufferObject*>(boh) : nullptr;
@@ -3613,9 +3607,9 @@ void OpenGLDriver::updateDescriptorSetBuffer(
 }
 
 void OpenGLDriver::updateDescriptorSetTexture(
-        backend::DescriptorSetHandle dsh,
+        DescriptorSetHandle dsh,
-        backend::descriptor_binding_t binding,
+        descriptor_binding_t binding,
-        backend::TextureHandle th,
+        TextureHandle th,
         SamplerParams params) {
     GLDescriptorSet* ds = handle_cast<GLDescriptorSet*>(dsh);
     GLTexture* t = th ? handle_cast<GLTexture*>(th) : nullptr;
@@ -3648,7 +3642,7 @@ void OpenGLDriver::finish(int) {
 
 UTILS_NOINLINE
 void OpenGLDriver::clearWithRasterPipe(TargetBufferFlags clearFlags,
-        math::float4 const& linearColor, GLfloat depth, GLint stencil) noexcept {
+        float4 const& linearColor, GLfloat depth, GLint stencil) noexcept {
 
     if (any(clearFlags & TargetBufferFlags::COLOR_ALL)) {
         mContext.colorMask(GL_TRUE);
@@ -3971,9 +3965,9 @@ void OpenGLDriver::bindRenderPrimitive(Handle<HwRenderPrimitive> rph) {
 }
 
 void OpenGLDriver::bindDescriptorSet(
-        backend::DescriptorSetHandle dsh,
+        DescriptorSetHandle dsh,
-        backend::descriptor_set_t set,
+        descriptor_set_t set,
-        backend::DescriptorSetOffsetArray&& offsets) {
+        DescriptorSetOffsetArray&& offsets) {
 
     if (UTILS_UNLIKELY(!dsh)) {
         mBoundDescriptorSets[set].dsh = dsh;
@@ -4005,7 +3999,7 @@ void OpenGLDriver::bindDescriptorSet(
     }
 }
 
-void OpenGLDriver::updateDescriptors(utils::bitset8 invalidDescriptorSets) noexcept {
+void OpenGLDriver::updateDescriptors(bitset8 invalidDescriptorSets) noexcept {
     assert_invariant(mBoundProgram);
     auto const offsetOnly = mInvalidDescriptorSetBindingOffsets & ~mInvalidDescriptorSetBindings;
     invalidDescriptorSets.forEachSetBit([this, offsetOnly,
@@ -4117,7 +4111,7 @@ void OpenGLDriver::draw(PipelineState state, Handle<HwRenderPrimitive> rph,
     }
 }
 
-void OpenGLDriver::dispatchCompute(Handle<HwProgram> program, math::uint3 workGroupCount) {
+void OpenGLDriver::dispatchCompute(Handle<HwProgram> program, uint3 workGroupCount) {
     DEBUG_MARKER()
     getShaderCompilerService().tick();
 

filament/backend/src/opengl/OpenGLDriver.h

@@ -19,6 +19,7 @@
 
 #include "DriverBase.h"
 #include "OpenGLContext.h"
+#include "OpenGLDriverBase.h"
 #include "OpenGLTimerQuery.h"
 #include "GLBufferObject.h"
 #include "GLDescriptorSet.h"
@@ -26,11 +27,10 @@
 #include "GLTexture.h"
 #include "ShaderCompilerService.h"
 
-#include <backend/platforms/OpenGLPlatform.h>
-
 #include <backend/AcquiredImage.h>
 #include <backend/DriverEnums.h>
 #include <backend/Handle.h>
+#include <backend/PipelineState.h>
 #include <backend/Platform.h>
 #include <backend/Program.h>
 #include <backend/TargetBufferInfo.h>
@@ -41,6 +41,7 @@
 #include <utils/bitset.h>
 #include <utils/FixedCapacityVector.h>
 #include <utils/compiler.h>
+#include <utils/CString.h>
 #include <utils/debug.h>
 
 #include <math/vec4.h>
@@ -74,14 +75,14 @@ class OpenGLProgram;
 class TimerQueryFactoryInterface;
 struct PushConstantBundle;
 
-class OpenGLDriver final : public DriverBase {
+class OpenGLDriver final : public OpenGLDriverBase {
     inline explicit OpenGLDriver(OpenGLPlatform* platform,
             const Platform::DriverConfig& driverConfig) noexcept;
-    ~OpenGLDriver() noexcept final;
+    ~OpenGLDriver() noexcept override;
-    Dispatcher getDispatcher() const noexcept final;
+    Dispatcher getDispatcher() const noexcept override;
 
 public:
-    static Driver* create(OpenGLPlatform* platform, void* sharedGLContext,
+    static OpenGLDriver* create(OpenGLPlatform* platform, void* sharedGLContext,
             const Platform::DriverConfig& driverConfig) noexcept;
 
     class DebugMarker {
@@ -184,7 +185,7 @@ public:
             std::condition_variable cond;
             FenceStatus status{ FenceStatus::TIMEOUT_EXPIRED };
         };
-        std::shared_ptr<State> state{ std::make_shared<GLFence::State>() };
+        std::shared_ptr<State> state{ std::make_shared<State>() };
     };
 
     OpenGLDriver(OpenGLDriver const&) = delete;
@@ -203,13 +204,21 @@ private:
         return mShaderCompilerService;
     }
 
-    ShaderModel getShaderModel() const noexcept final;
+    ShaderModel getShaderModel() const noexcept override;
-    ShaderLanguage getShaderLanguage() const noexcept final;
+    ShaderLanguage getShaderLanguage() const noexcept override;
 
     /*
-     * Driver interface
+     * OpenGLDriver interface
      */
 
+    utils::CString getVendorString() const noexcept override {
+        return utils::CString{ mContext.state.vendor };
+    }
+
+    utils::CString getRendererString() const noexcept override {
+        return utils::CString{ mContext.state.renderer };
+    }
+
     template<typename T>
     friend class ConcreteDispatcher;
 
@@ -236,21 +245,21 @@ private:
     }
 
     template<typename D, typename B, typename ... ARGS>
-    typename std::enable_if<std::is_base_of<B, D>::value, D>::type*
+    std::enable_if_t<std::is_base_of_v<B, D>, D>*
     construct(Handle<B> const& handle, ARGS&& ... args) {
         return mHandleAllocator.destroyAndConstruct<D, B>(handle, std::forward<ARGS>(args) ...);
     }
 
     template<typename B, typename D,
-            typename = typename std::enable_if<std::is_base_of<B, D>::value, D>::type>
+            typename = std::enable_if_t<std::is_base_of_v<B, D>, D>>
     void destruct(Handle<B>& handle, D const* p) noexcept {
         return mHandleAllocator.deallocate(handle, p);
     }
 
     template<typename Dp, typename B>
-    typename std::enable_if_t<
+    std::enable_if_t<
             std::is_pointer_v<Dp> &&
-            std::is_base_of_v<B, typename std::remove_pointer_t<Dp>>, Dp>
+            std::is_base_of_v<B, std::remove_pointer_t<Dp>>, Dp>
     handle_cast(Handle<B>& handle) {
         return mHandleAllocator.handle_cast<Dp, B>(handle);
     }
@@ -261,9 +270,9 @@ private:
     }
 
     template<typename Dp, typename B>
-    inline typename std::enable_if_t<
+    std::enable_if_t<
             std::is_pointer_v<Dp> &&
-            std::is_base_of_v<B, typename std::remove_pointer_t<Dp>>, Dp>
+            std::is_base_of_v<B, std::remove_pointer_t<Dp>>, Dp>
     handle_cast(Handle<B> const& handle) {
         return mHandleAllocator.handle_cast<Dp, B>(handle);
     }
@@ -288,13 +297,13 @@ private:
 
     void setStencilState(StencilState ss) noexcept;
 
-    void setTextureData(GLTexture* t,
+    void setTextureData(GLTexture const* t,
             uint32_t level,
             uint32_t xoffset, uint32_t yoffset, uint32_t zoffset,
             uint32_t width, uint32_t height, uint32_t depth,
             PixelBufferDescriptor&& p);
 
-    void setCompressedTextureData(GLTexture* t,
+    void setCompressedTextureData(GLTexture const* t,
             uint32_t level,
             uint32_t xoffset, uint32_t yoffset, uint32_t zoffset,
             uint32_t width, uint32_t height, uint32_t depth,
@@ -303,7 +312,7 @@ private:
     void renderBufferStorage(GLuint rbo, GLenum internalformat, uint32_t width,
             uint32_t height, uint8_t samples) const noexcept;
 
-    void textureStorage(OpenGLDriver::GLTexture* t, uint32_t width, uint32_t height,
+    void textureStorage(GLTexture* t, uint32_t width, uint32_t height,
             uint32_t depth, bool useProtectedMemory) noexcept;
 
     /* State tracking GL wrappers... */
@@ -335,9 +344,9 @@ private:
     void updateDescriptors(utils::bitset8 invalidDescriptorSets) noexcept;
 
     struct {
-        backend::DescriptorSetHandle dsh;
+        DescriptorSetHandle dsh;
         std::array<uint32_t, CONFIG_UNIFORM_BINDING_COUNT> offsets;
-    } mBoundDescriptorSets[MAX_DESCRIPTOR_SET_COUNT];
+    } mBoundDescriptorSets[MAX_DESCRIPTOR_SET_COUNT] = {};
 
     void clearWithRasterPipe(TargetBufferFlags clearFlags,
             math::float4 const& linearColor, GLfloat depth, GLint stencil) noexcept;

filament/backend/src/opengl/OpenGLDriverBase.h

@@ -0,0 +1,37 @@
+/*
+ * Copyright (C) 2025 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef TNT_FILAMENT_BACKEND_OPENGL_OPENGLDRIVERBASE_H
+#define TNT_FILAMENT_BACKEND_OPENGL_OPENGLDRIVERBASE_H
+
+#include "DriverBase.h"
+
+#include <utils/CString.h>
+
+namespace filament::backend {
+
+class OpenGLDriverBase : public DriverBase {
+protected:
+    ~OpenGLDriverBase() override;
+
+public:
+    virtual utils::CString getVendorString() const noexcept = 0;
+    virtual utils::CString getRendererString() const noexcept = 0;
+};
+
+} // filament::backend
+
+#endif //TNT_FILAMENT_BACKEND_OPENGL_OPENGLDRIVERBASE_H

filament/backend/src/opengl/OpenGLPlatform.cpp

@@ -16,6 +16,7 @@
 
 #include <backend/platforms/OpenGLPlatform.h>
 
+#include "OpenGLDriverBase.h"
 #include "OpenGLDriverFactory.h"
 
 #include <backend/AcquiredImage.h>
@@ -23,21 +24,45 @@
 #include <backend/Platform.h>
 
 #include <utils/compiler.h>
-
+#include <utils/Panic.h>
+#include <utils/CString.h>
 #include <utils/Invocable.h>
+
 #include <stddef.h>
 #include <stdint.h>
 #include <stdlib.h>
 
+#include "OpenGLDriver.h"
+
 namespace filament::backend {
 
+OpenGLDriverBase::~OpenGLDriverBase() = default;
+
 Driver* OpenGLPlatform::createDefaultDriver(OpenGLPlatform* platform,
-        void* sharedContext, const Platform::DriverConfig& driverConfig) {
+        void* sharedContext, const DriverConfig& driverConfig) {
     return OpenGLDriverFactory::create(platform, sharedContext, driverConfig);
 }
 
 OpenGLPlatform::~OpenGLPlatform() noexcept = default;
 
+utils::CString OpenGLPlatform::getVendorString(Driver const* driver) {
+    auto const p = static_cast<OpenGLDriverBase const*>(driver);
+#if UTILS_HAS_RTTI
+    FILAMENT_CHECK_POSTCONDITION(dynamic_cast<OpenGLDriverBase const*>(driver))
+            << "Driver* has not been allocated with OpenGLPlatform";
+#endif
+    return p->getVendorString();
+}
+
+utils::CString OpenGLPlatform::getRendererString(Driver const* driver) {
+    auto const p = static_cast<OpenGLDriverBase const*>(driver);
+#if UTILS_HAS_RTTI
+    FILAMENT_CHECK_POSTCONDITION(dynamic_cast<OpenGLDriverBase const*>(driver))
+            << "Driver* has not been allocated with OpenGLPlatform";
+#endif
+    return p->getRendererString();
+}
+
 void OpenGLPlatform::makeCurrent(SwapChain* drawSwapChain, SwapChain* readSwapChain,
         utils::Invocable<void()>, utils::Invocable<void(size_t)>) noexcept {
     makeCurrent(getCurrentContextType(), drawSwapChain, readSwapChain);

filament/backend/src/opengl/platforms/PlatformEGL.cpp

@@ -297,7 +297,7 @@ Driver* PlatformEGL::createDriver(void* sharedContext, const DriverConfig& drive
     clearGlError();
 
     // success!!
-    return OpenGLPlatform::createDefaultDriver(this, sharedContext, driverConfig);
+    return createDefaultDriver(this, sharedContext, driverConfig);
 
 error:
     // if we're here, we've failed
@@ -551,7 +551,7 @@ Platform::SwapChain* PlatformEGL::createSwapChain(
     return sc;
 }
 
-void PlatformEGL::destroySwapChain(Platform::SwapChain* swapChain) noexcept {
+void PlatformEGL::destroySwapChain(SwapChain* swapChain) noexcept {
     if (swapChain) {
         SwapChainEGL const* const sc = static_cast<SwapChainEGL const*>(swapChain);
         if (sc->sur != EGL_NO_SURFACE) {
@@ -564,7 +564,7 @@ void PlatformEGL::destroySwapChain(Platform::SwapChain* swapChain) noexcept {
     }
 }
 
-bool PlatformEGL::isSwapChainProtected(Platform::SwapChain* swapChain) noexcept {
+bool PlatformEGL::isSwapChainProtected(SwapChain* swapChain) noexcept {
     if (swapChain) {
         SwapChainEGL const* const sc = static_cast<SwapChainEGL const*>(swapChain);
         return bool(sc->flags & SWAP_CHAIN_CONFIG_PROTECTED_CONTENT);
@@ -585,10 +585,10 @@ bool PlatformEGL::makeCurrent(ContextType type,
     return success == EGL_TRUE ? true : false;
 }
 
-void PlatformEGL::makeCurrent(Platform::SwapChain* drawSwapChain,
+void PlatformEGL::makeCurrent(SwapChain* drawSwapChain,
-        Platform::SwapChain* readSwapChain,
+        SwapChain* readSwapChain,
-        utils::Invocable<void()> preContextChange,
+        Invocable<void()> preContextChange,
-        utils::Invocable<void(size_t index)> postContextChange) noexcept {
+        Invocable<void(size_t index)> postContextChange) noexcept {
 
     assert_invariant(drawSwapChain);
     assert_invariant(readSwapChain);
@@ -647,7 +647,7 @@ void PlatformEGL::makeCurrent(Platform::SwapChain* drawSwapChain,
     }
 }
 
-void PlatformEGL::commit(Platform::SwapChain* swapChain) noexcept {
+void PlatformEGL::commit(SwapChain* swapChain) noexcept {
     if (swapChain) {
         SwapChainEGL const* const sc = static_cast<SwapChainEGL const*>(swapChain);
         if (sc->sur != EGL_NO_SURFACE) {
@@ -670,7 +670,7 @@ Platform::Fence* PlatformEGL::createFence() noexcept {
     return f;
 }
 
-void PlatformEGL::destroyFence(Platform::Fence* fence) noexcept {
+void PlatformEGL::destroyFence(Fence* fence) noexcept {
 #ifdef EGL_KHR_reusable_sync
     EGLSyncKHR sync = (EGLSyncKHR) fence;
     if (sync != EGL_NO_SYNC_KHR) {
@@ -680,7 +680,7 @@ void PlatformEGL::destroyFence(Platform::Fence* fence) noexcept {
 }
 
 FenceStatus PlatformEGL::waitFence(
-        Platform::Fence* fence, uint64_t timeout) noexcept {
+        Fence* fence, uint64_t timeout) noexcept {
 #ifdef EGL_KHR_reusable_sync
     EGLSyncKHR sync = (EGLSyncKHR) fence;
     if (sync != EGL_NO_SYNC_KHR) {
@@ -746,7 +746,7 @@ void PlatformEGL::initializeGlExtensions() noexcept {
     ext.gl.OES_EGL_image_external_essl3 = glExtensions.has("GL_OES_EGL_image_external_essl3");
 }
 
-EGLContext PlatformEGL::getContextForType(OpenGLPlatform::ContextType type) const noexcept {
+EGLContext PlatformEGL::getContextForType(ContextType type) const noexcept {
     switch (type) {
         case ContextType::NONE:
             return EGL_NO_CONTEXT;

filament/backend/src/vulkan/VulkanContext.h

@@ -163,13 +163,24 @@ public:
         return mProtectedMemorySupported;
     }
 
+    inline bool isImageView2DOn3DImageSupported() const noexcept {
+        return mPortabilitySubsetFeatures.imageView2DOn3DImage == VK_TRUE;
+    }
+
 private:
     VkPhysicalDeviceMemoryProperties mMemoryProperties = {};
     VkPhysicalDeviceProperties2 mPhysicalDeviceProperties = {
-        .sType = VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_PROPERTIES_2
+        .sType = VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_PROPERTIES_2,
     };
     VkPhysicalDeviceFeatures2 mPhysicalDeviceFeatures = {
-        .sType = VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_FEATURES_2
+        .sType = VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_FEATURES_2,
+    };
+    VkPhysicalDevicePortabilitySubsetFeaturesKHR mPortabilitySubsetFeatures = {
+        .sType = VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_PORTABILITY_SUBSET_FEATURES_KHR,
+        // By default, on platforms where we don't have portability subset, then this feature must
+        // exists.  We only fill this struct only when portability subset is needed (i.e.
+        // non-conformant vulkan implementation).
+        .imageView2DOn3DImage = VK_TRUE,
     };
     bool mDebugMarkersSupported = false;
     bool mDebugUtilsSupported = false;

filament/backend/src/vulkan/VulkanDriver.cpp

@@ -579,7 +579,7 @@ void VulkanDriver::createTextureExternalImageR(Handle<HwTexture> th, backend::Sa
 
     auto texture = resource_ptr<VulkanTexture>::make(&mResourceManager, th, mPlatform->getDevice(),
         mAllocator, &mResourceManager, &mCommands, data.first, data.second, metadata.format,
-        1, metadata.width, metadata.height, usage, mStagePool);
+        1, metadata.width, metadata.height, /*depth=*/1, usage, mStagePool);
 
     texture.inc();
 }

filament/backend/src/vulkan/VulkanHandles.cpp

@@ -128,6 +128,15 @@ fvkmemory::resource_ptr<VulkanTexture> initMsaaTexture(
     return msTexture;
 }
 
+VulkanAttachment createSwapchainAttachment(const fvkmemory::resource_ptr<VulkanTexture> texture) {
+    return VulkanAttachment {
+        .texture = texture,
+        .level = 0,
+        .layerCount = static_cast<uint8_t>(texture ? texture->getPrimaryViewRange().layerCount : 1),
+        .layer = 0,
+    };
+}
+
 } // anonymous namespace
 
 void VulkanDescriptorSet::acquire(fvkmemory::resource_ptr<VulkanTexture> texture) {
@@ -274,22 +283,21 @@ void VulkanRenderTarget::bindToSwapChain(fvkmemory::resource_ptr<VulkanSwapChain
     height = extent.height;
     mProtected = swapchain->isProtected();
 
-    VulkanAttachment color = {};
+    VulkanAttachment color = createSwapchainAttachment(swapchain->getCurrentColor());
-    color.texture = swapchain->getCurrentColor();
     mInfo->attachments = {color};
 
     auto& fbkey = mInfo->fbkey;
     auto& rpkey = mInfo->rpkey;
 
     rpkey.colorFormat[0] = color.getFormat();
+    rpkey.viewCount = color.layerCount;
     fbkey.width = width;
     fbkey.height = height;
     fbkey.color[0] = color.getImageView();
     fbkey.resolve[0] = VK_NULL_HANDLE;
 
     if (swapchain->getDepth()) {
-        VulkanAttachment depth = {};
+        VulkanAttachment depth = createSwapchainAttachment(swapchain->getDepth());
-        depth.texture = swapchain->getDepth();
         mInfo->attachments.push_back(depth);
         mInfo->depthIndex = 1;
 

filament/backend/src/vulkan/VulkanHandles.h

@@ -218,12 +218,6 @@ struct VulkanProgram : public HwProgram, fvkmemory::Resource {
         mInfo->pushConstantDescription.write(cmdbuf, layout, stage, index, value);
     }
 
-#if FVK_ENABLED_DEBUG_SAMPLER_NAME
-    inline utils::FixedCapacityVector<std::string> const& getBindingToName() const {
-        return mInfo->bindingToName;
-    }
-#endif
-
     // TODO: handle compute shaders.
     // The expected order of shaders - from frontend to backend - is vertex, fragment, compute.
     static constexpr uint8_t const MAX_SHADER_MODULES = 2;

filament/backend/src/vulkan/VulkanSwapChain.cpp

@@ -40,6 +40,8 @@ VulkanSwapChain::VulkanSwapChain(VulkanPlatform* platform, VulkanContext const&
       mFlushAndWaitOnResize(platform->getCustomization().flushAndWaitOnWindowResize),
       mTransitionSwapChainImageLayoutForPresent(
               platform->getCustomization().transitionSwapChainImageLayoutForPresent),
+      mLayerCount(1),
+      mCurrentSwapIndex(0),
       mAcquired(false),
       mIsFirstRenderPass(true) {
     swapChain = mPlatform->createSwapChain(nativeWindow, flags, extent);
@@ -76,17 +78,18 @@ void VulkanSwapChain::update() {
     for (auto const color: bundle.colors) {
         auto colorTexture = fvkmemory::resource_ptr<VulkanTexture>::construct(mResourceManager,
                 device, mAllocator, mResourceManager, mCommands, color, VK_NULL_HANDLE,
-                bundle.colorFormat, 1, bundle.extent.width, bundle.extent.height, colorUsage,
+                bundle.colorFormat, 1, bundle.extent.width, bundle.extent.height, bundle.layerCount, colorUsage,
                 mStagePool);
         mColors.push_back(colorTexture);
     }
 
     mDepth = fvkmemory::resource_ptr<VulkanTexture>::construct(mResourceManager, device,
         mAllocator, mResourceManager, mCommands, bundle.depth, VK_NULL_HANDLE,
-        bundle.depthFormat, 1, bundle.extent.width, bundle.extent.height, depthUsage,
+        bundle.depthFormat, 1, bundle.extent.width, bundle.extent.height, bundle.layerCount, depthUsage,
         mStagePool);
 
     mExtent = bundle.extent;
+    mLayerCount = bundle.layerCount;
 }
 
 void VulkanSwapChain::present() {
@@ -97,7 +100,7 @@ void VulkanSwapChain::present() {
                 .baseMipLevel = 0,
                 .levelCount = 1,
                 .baseArrayLayer = 0,
-                .layerCount = 1,
+                .layerCount = mLayerCount,
         };
         mColors[mCurrentSwapIndex]->transitionLayout(&commands, subresources, VulkanLayout::PRESENT);
     }

filament/backend/src/vulkan/VulkanSwapChain.h

@@ -96,6 +96,7 @@ private:
     utils::FixedCapacityVector<fvkmemory::resource_ptr<VulkanTexture>> mColors;
     fvkmemory::resource_ptr<VulkanTexture> mDepth;
     VkExtent2D mExtent;
+    uint32_t mLayerCount;
     uint32_t mCurrentSwapIndex;
     std::function<void(Platform::SwapChain* handle)> mExplicitImageReadyWait = nullptr;
     bool mAcquired;

filament/backend/src/vulkan/VulkanTexture.cpp

@@ -144,6 +144,16 @@ inline VulkanLayout getDefaultLayoutImpl(VkImageUsageFlags vkusage) {
     return getDefaultLayoutImpl(usage);
 }
 
+SamplerType getSamplerTypeFromDepth(uint32_t const depth) {
+  return depth > 1 ? SamplerType::SAMPLER_2D_ARRAY
+                                  : SamplerType::SAMPLER_2D;
+}
+
+uint8_t getLayerCountFromDepth(uint32_t const depth) {
+    return getLayerCount(getSamplerTypeFromDepth(depth), depth);
+}
+
+
 } // anonymous namespace
 
 VulkanTextureState::VulkanTextureState(VkDevice device, VmaAllocator allocator,
@@ -165,12 +175,12 @@ VulkanTextureState::VulkanTextureState(VkDevice device, VmaAllocator allocator,
 VulkanTexture::VulkanTexture(VkDevice device, VmaAllocator allocator,
         fvkmemory::ResourceManager* resourceManager, VulkanCommands* commands, VkImage image,
         VkDeviceMemory memory, VkFormat format, uint8_t samples, uint32_t width,
-        uint32_t height, TextureUsage tusage, VulkanStagePool& stagePool)
+        uint32_t height, uint32_t depth, TextureUsage tusage, VulkanStagePool& stagePool)
-    : HwTexture(SamplerType::SAMPLER_2D, 1, samples, width, height, 1, TextureFormat::UNUSED,
+    : HwTexture(getSamplerTypeFromDepth(depth), 1, samples, width, height, depth, TextureFormat::UNUSED,
               tusage),
       mState(fvkmemory::resource_ptr<VulkanTextureState>::construct(resourceManager, device,
               allocator, commands, stagePool, format, fvkutils::getViewType(SamplerType::SAMPLER_2D),
-              1, 1, getDefaultLayoutImpl(tusage), any(usage & TextureUsage::PROTECTED))) {
+              /*mipLevels=*/1, getLayerCountFromDepth(depth), getDefaultLayoutImpl(tusage), any(usage & TextureUsage::PROTECTED))) {
     mState->mTextureImage = image;
     mState->mTextureImageMemory = memory;
     mPrimaryViewRange = mState->mFullViewRange;
@@ -183,7 +193,6 @@ VulkanTexture::VulkanTexture(VkDevice device, VkPhysicalDevice physicalDevice,
         uint8_t levels, TextureFormat tformat, uint8_t samples, uint32_t w, uint32_t h,
         uint32_t depth, TextureUsage tusage, VulkanStagePool& stagePool)
     : HwTexture(target, levels, samples, w, h, depth, tformat, tusage),
-
       mState(fvkmemory::resource_ptr<VulkanTextureState>::construct(resourceManager, device,
               allocator, commands, stagePool, fvkutils::getVkFormat(tformat),
               fvkutils::getViewType(target), levels, getLayerCount(target, depth),
@@ -199,11 +208,20 @@ VulkanTexture::VulkanTexture(VkDevice device, VkPhysicalDevice physicalDevice,
         .tiling = VK_IMAGE_TILING_OPTIMAL,
         .usage = 0,
     };
-    if (target == SamplerType::SAMPLER_CUBEMAP) {
+    if (target == SamplerType::SAMPLER_3D && any(tusage & TextureUsage::ALL_ATTACHMENTS)) {
+        if (context.isImageView2DOn3DImageSupported()) {
+            // Note that VK_IMAGE_CREATE_2D_ARRAY_COMPATIBLE_BIT is only meant to create 2D views of
+            // a 3D image in the case where the image is the render target.  So, for example, it's
+            // not meant to allow for 2D views that can be used with a sampler.
+            imageInfo.flags = VK_IMAGE_CREATE_2D_ARRAY_COMPATIBLE_BIT;
+        } else {
+            FVK_LOGW << "Note: creating 2D views on 3D image is not available on this platform. "
+                     << "i.e. we cannot render to slices of a 3D image" << utils::io::endl;
+        }
+    } else if (target == SamplerType::SAMPLER_CUBEMAP) {
         imageInfo.arrayLayers = 6;
         imageInfo.flags = VK_IMAGE_CREATE_CUBE_COMPATIBLE_BIT;
-    }
+    } else if (target == SamplerType::SAMPLER_2D_ARRAY) {
-    if (target == SamplerType::SAMPLER_2D_ARRAY) {
         imageInfo.arrayLayers = depth;
         imageInfo.extent.depth = 1;
         // NOTE: We do not use VK_IMAGE_CREATE_2D_ARRAY_COMPATIBLE_BIT here because:
@@ -247,9 +265,9 @@ VulkanTexture::VulkanTexture(VkDevice device, VkPhysicalDevice physicalDevice,
 #if FVK_ENABLED(FVK_DEBUG_TEXTURE)
         // Validate that the format is actually sampleable.
         VkFormatProperties props;
-        vkGetPhysicalDeviceFormatProperties(physicalDevice, state->mVkFormat, &props);
+        vkGetPhysicalDeviceFormatProperties(physicalDevice, mState->mVkFormat, &props);
         if (!(props.optimalTilingFeatures & VK_FORMAT_FEATURE_SAMPLED_IMAGE_BIT)) {
-            FVK_LOGW << "Texture usage is SAMPLEABLE but format " << state->mVkFormat << " is not "
+            FVK_LOGW << "Texture usage is SAMPLEABLE but format " << mState->mVkFormat << " is not "
                     "sampleable with optimal tiling." << utils::io::endl;
         }
 #endif
@@ -631,15 +649,16 @@ bool VulkanTexture::transitionLayout(VkCommandBuffer cmdbuf, VkImageSubresourceR
 
     if (hasTransitions) {
 #if FVK_ENABLED(FVK_DEBUG_LAYOUT_TRANSITION)
-        FVK_LOGD << "transition texture=" << state->mTextureImage << " (" << range.baseArrayLayer
+        FVK_LOGD << "transition texture=" << mState->mTextureImage << " (" << range.baseArrayLayer
                  << "," << range.baseMipLevel << ")" << " count=(" << range.layerCount << ","
                  << range.levelCount << ")" << " from=" << oldLayout << " to=" << newLayout
-                 << " format=" << state->mVkFormat << " depth=" << isVkDepthFormat(state->mVkFormat)
+                 << " format=" << mState->mVkFormat << " depth="
+                 << fvkutils::isVkDepthFormat(mState->mVkFormat)
                  << " slice-by-slice=" << transitionSliceBySlice << utils::io::endl;
 #endif
     } else {
 #if FVK_ENABLED(FVK_DEBUG_LAYOUT_TRANSITION)
-        FVK_LOGD << "transition texture=" << state->mTextureImage << " (" << range.baseArrayLayer
+        FVK_LOGD << "transition texture=" << mState->mTextureImage << " (" << range.baseArrayLayer
                  << "," << range.baseMipLevel << ")" << " count=(" << range.layerCount << ","
                  << range.levelCount << ")" << " to=" << newLayout
                  << " is skipped because of no change in layout" << utils::io::endl;

filament/backend/src/vulkan/VulkanTexture.h

@@ -94,7 +94,7 @@ struct VulkanTexture : public HwTexture, fvkmemory::Resource {
     // The texture will never destroy the given VkImage, but it does manages its subresources.
     VulkanTexture(VkDevice device, VmaAllocator allocator,
             fvkmemory::ResourceManager* resourceManager, VulkanCommands* commands, VkImage image,
-            VkDeviceMemory memory, VkFormat format, uint8_t samples, uint32_t width, uint32_t height,
+            VkDeviceMemory memory, VkFormat format, uint8_t samples, uint32_t width, uint32_t height, uint32_t depth,
             TextureUsage tusage, VulkanStagePool& stagePool);
 
     // Constructor for creating a texture view for wrt specific mip range

filament/backend/src/vulkan/platform/VulkanPlatform.cpp

@@ -18,6 +18,7 @@
 
 #include <backend/DriverEnums.h>
 
+#include "vulkan/VulkanContext.h"
 #include "vulkan/platform/VulkanPlatformSwapChainImpl.h"
 #include "vulkan/VulkanConstants.h"
 #include "vulkan/VulkanDriver.h"
@@ -68,7 +69,7 @@ FixedCapacityVector<const char*> getEnabledLayers() {
     constexpr size_t kMaxEnabledLayersCount = sizeof(DESIRED_LAYERS) / sizeof(DESIRED_LAYERS[0]);
 
     const FixedCapacityVector<VkLayerProperties> availableLayers
-            = filament::backend::enumerate(vkEnumerateInstanceLayerProperties);
+            = fvkutils::enumerate(vkEnumerateInstanceLayerProperties);
 
     auto enabledLayers = FixedCapacityVector<const char*>::with_capacity(kMaxEnabledLayersCount);
     for (auto const& desired: DESIRED_LAYERS) {
@@ -84,6 +85,13 @@ FixedCapacityVector<const char*> getEnabledLayers() {
 }
 #endif // FVK_EANBLED(FVK_DEBUG_VALIDATION)
 
+template<typename StructA, typename StructB>
+StructA* chainStruct(StructA* structA, StructB* structB) {
+    structB->pNext = const_cast<void*>(structA->pNext);
+    structA->pNext = (void*) structB;
+    return structA;
+}
+
 void printDeviceInfo(VkInstance instance, VkPhysicalDevice device) {
     // Print some driver or MoltenVK information if it is available.
     if (vkGetPhysicalDeviceProperties2) {
@@ -92,8 +100,8 @@ void printDeviceInfo(VkInstance instance, VkPhysicalDevice device) {
         };
         VkPhysicalDeviceProperties2 physicalDeviceProperties2 = {
                 .sType = VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_PROPERTIES_2,
-                .pNext = &driverProperties,
         };
+        chainStruct(&physicalDeviceProperties2, &driverProperties);
         vkGetPhysicalDeviceProperties2(device, &physicalDeviceProperties2);
         FVK_LOGI << "Vulkan device driver: " << driverProperties.driverName << " "
                       << driverProperties.driverInfo << utils::io::endl;
@@ -143,7 +151,7 @@ void printDepthFormats(VkPhysicalDevice device) {
     const VkFormatFeatureFlags required = VK_FORMAT_FEATURE_DEPTH_STENCIL_ATTACHMENT_BIT
                                               | VK_FORMAT_FEATURE_SAMPLED_IMAGE_BIT;
     FVK_LOGI << "Sampleable depth formats: ";
-    for (VkFormat format : ALL_VK_FORMATS) {
+    for (VkFormat format : fvkutils::ALL_VK_FORMATS) {
         VkFormatProperties props;
         vkGetPhysicalDeviceFormatProperties(device, format, &props);
         if ((props.optimalTilingFeatures & required) == required) {
@@ -231,7 +239,9 @@ ExtensionSet getDeviceExtensions(VkPhysicalDevice device) {
 
 VkInstance createInstance(ExtensionSet const& requiredExts) {
     VkInstance instance;
-    VkInstanceCreateInfo instanceCreateInfo = {};
+    VkInstanceCreateInfo instanceCreateInfo = {
+        .sType = VK_STRUCTURE_TYPE_INSTANCE_CREATE_INFO,
+    };
     bool validationFeaturesSupported = false;
 
 #if FVK_ENABLED(FVK_DEBUG_VALIDATION)
@@ -239,7 +249,7 @@ VkInstance createInstance(ExtensionSet const& requiredExts) {
     if (!enabledLayers.empty()) {
         // If layers are supported, Check if VK_EXT_validation_features is supported.
         FixedCapacityVector<VkExtensionProperties> const availableValidationExts
-                = filament::backend::enumerate(vkEnumerateInstanceExtensionProperties,
+                = fvkutils::enumerate(vkEnumerateInstanceExtensionProperties,
                         "VK_LAYER_KHRONOS_validation");
         for (auto const& extProps: availableValidationExts) {
             if (!strcmp(extProps.extensionName, VK_EXT_VALIDATION_FEATURES_EXTENSION_NAME)) {
@@ -282,7 +292,6 @@ VkInstance createInstance(ExtensionSet const& requiredExts) {
     appInfo.pEngineName = "Filament";
     appInfo.apiVersion
             = VK_MAKE_API_VERSION(0, FVK_REQUIRED_VERSION_MAJOR, FVK_REQUIRED_VERSION_MINOR, 0);
-    instanceCreateInfo.sType = VK_STRUCTURE_TYPE_INSTANCE_CREATE_INFO;
     instanceCreateInfo.pApplicationInfo = &appInfo;
     instanceCreateInfo.enabledExtensionCount = enabledExtensionCount;
     instanceCreateInfo.ppEnabledExtensionNames = ppEnabledExtensions;
@@ -290,16 +299,17 @@ VkInstance createInstance(ExtensionSet const& requiredExts) {
         instanceCreateInfo.flags = VK_INSTANCE_CREATE_ENUMERATE_PORTABILITY_BIT_KHR;
     }
 
-    VkValidationFeaturesEXT features = {};
+    VkValidationFeaturesEXT features = {
+        .sType = VK_STRUCTURE_TYPE_VALIDATION_FEATURES_EXT,
+    };
     VkValidationFeatureEnableEXT enables[] = {
-            VK_VALIDATION_FEATURE_ENABLE_BEST_PRACTICES_EXT,
+        VK_VALIDATION_FEATURE_ENABLE_BEST_PRACTICES_EXT,
-            VK_VALIDATION_FEATURE_ENABLE_SYNCHRONIZATION_VALIDATION_EXT,
+        VK_VALIDATION_FEATURE_ENABLE_SYNCHRONIZATION_VALIDATION_EXT,
     };
     if (validationFeaturesSupported) {
-        features.sType = VK_STRUCTURE_TYPE_VALIDATION_FEATURES_EXT;
         features.enabledValidationFeatureCount = sizeof(enables) / sizeof(enables[0]);
         features.pEnabledValidationFeatures = enables;
-        instanceCreateInfo.pNext = &features;
+        chainStruct(&instanceCreateInfo, &features);
     }
 
     VkResult result = vkCreateInstance(&instanceCreateInfo, VKALLOC, &instance);
@@ -310,11 +320,13 @@ VkInstance createInstance(ExtensionSet const& requiredExts) {
 
 VkDevice createLogicalDevice(VkPhysicalDevice physicalDevice,
         VkPhysicalDeviceFeatures2 const& features, uint32_t graphicsQueueFamilyIndex,
-        uint32_t protectedGraphicsQueueFamilyIndex, ExtensionSet const& deviceExtensions) {
+        uint32_t protectedGraphicsQueueFamilyIndex, ExtensionSet const& deviceExtensions,
+        bool requestImageView2DOn3DImage) {
     VkDevice device;
-    VkDeviceQueueCreateInfo deviceQueueCreateInfo[2] = {};
+    float queuePriority[] = {1.0f};
-    const float queuePriority[] = {1.0f};
+    VkDeviceCreateInfo deviceCreateInfo = {
-    VkDeviceCreateInfo deviceCreateInfo = {};
+        .sType = VK_STRUCTURE_TYPE_DEVICE_CREATE_INFO,
+    };
     FixedCapacityVector<const char*> requestExtensions;
     requestExtensions.reserve(deviceExtensions.size() + 1);
 
@@ -323,6 +335,7 @@ VkDevice createLogicalDevice(VkPhysicalDevice physicalDevice,
     for (auto const& ext: deviceExtensions) {
         requestExtensions.push_back(ext.data());
     }
+    VkDeviceQueueCreateInfo deviceQueueCreateInfo[2] = {};
     deviceQueueCreateInfo[0].sType = VK_STRUCTURE_TYPE_DEVICE_QUEUE_CREATE_INFO;
     deviceQueueCreateInfo[0].queueFamilyIndex = graphicsQueueFamilyIndex;
     deviceQueueCreateInfo[0].queueCount = 1;
@@ -334,7 +347,6 @@ VkDevice createLogicalDevice(VkPhysicalDevice physicalDevice,
     deviceQueueCreateInfo[1].queueCount = 1;
     deviceQueueCreateInfo[1].pQueuePriorities = &queuePriority[0];
 
-    deviceCreateInfo.sType = VK_STRUCTURE_TYPE_DEVICE_CREATE_INFO;
     bool const hasProtectedQueue = protectedGraphicsQueueFamilyIndex != INVALID_VK_INDEX;
     deviceCreateInfo.queueCreateInfoCount = hasProtectedQueue ? 2 : 1;
     deviceCreateInfo.pQueueCreateInfos = deviceQueueCreateInfo;
@@ -353,42 +365,35 @@ VkDevice createLogicalDevice(VkPhysicalDevice physicalDevice,
     deviceCreateInfo.enabledExtensionCount = (uint32_t) requestExtensions.size();
     deviceCreateInfo.ppEnabledExtensionNames = requestExtensions.data();
 
-    void* pNext = nullptr;
     VkPhysicalDevicePortabilitySubsetFeaturesKHR portability = {
-            .sType = VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_PORTABILITY_SUBSET_FEATURES_KHR,
+        .sType = VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_PORTABILITY_SUBSET_FEATURES_KHR,
-            .pNext = nullptr,
+        .imageViewFormatSwizzle = VK_TRUE,
-            .imageViewFormatSwizzle = VK_TRUE,
+        .imageView2DOn3DImage = requestImageView2DOn3DImage ? VK_TRUE : VK_FALSE,        
-            .mutableComparisonSamplers = VK_TRUE,
+        .mutableComparisonSamplers = VK_TRUE,
     };
     if (setContains(deviceExtensions, VK_KHR_PORTABILITY_SUBSET_EXTENSION_NAME)) {
-        portability.pNext = pNext;
+        chainStruct(&deviceCreateInfo, &portability);
-        pNext = &portability;
     }
 
     VkPhysicalDeviceMultiviewFeaturesKHR multiview = {
-            .sType = VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_MULTIVIEW_FEATURES_KHR,
+        .sType = VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_MULTIVIEW_FEATURES_KHR,
-            .pNext = nullptr,
+        .multiview = VK_TRUE,
-            .multiview = VK_TRUE,
+        .multiviewGeometryShader = VK_FALSE,
-            .multiviewGeometryShader = VK_FALSE,
+        .multiviewTessellationShader = VK_FALSE,
-            .multiviewTessellationShader = VK_FALSE
     };
     if (setContains(deviceExtensions, VK_KHR_MULTIVIEW_EXTENSION_NAME)) {
-        multiview.pNext = pNext;
+        chainStruct(&deviceCreateInfo, &multiview);
-        pNext = &multiview;
     }
 
     VkPhysicalDeviceProtectedMemoryFeatures protectedMemory = {
         .sType = VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_PROTECTED_MEMORY_FEATURES,
+        .protectedMemory = VK_TRUE,
     };
     if (hasProtectedQueue) {
         // Enable protected memory, if requested.
-        protectedMemory.protectedMemory = VK_TRUE;
+        chainStruct(&deviceCreateInfo, &protectedMemory);
-        protectedMemory.pNext = pNext;
-        pNext = &protectedMemory;
     }
 
-    deviceCreateInfo.pNext = pNext;
-
     VkResult result = vkCreateDevice(physicalDevice, &deviceCreateInfo, VKALLOC, &device);
     FILAMENT_CHECK_POSTCONDITION(result == VK_SUCCESS)
             << "vkCreateDevice error=" << static_cast<int32_t>(result);
@@ -721,14 +726,11 @@ Driver* VulkanPlatform::createDriver(void* sharedContext,
     VkPhysicalDeviceProtectedMemoryFeatures queryProtectedMemoryFeatures = {
         .sType = VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_PROTECTED_MEMORY_FEATURES,
     };
-    // Chain to the pNext linked list
-    queryProtectedMemoryFeatures.pNext = context.mPhysicalDeviceFeatures.pNext;
-    context.mPhysicalDeviceFeatures.pNext = &queryProtectedMemoryFeatures;
     VkPhysicalDeviceProtectedMemoryProperties protectedMemoryProperties = {
         .sType = VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_PROTECTED_MEMORY_PROPERTIES,
     };
-    protectedMemoryProperties.pNext = context.mPhysicalDeviceProperties.pNext;
+    chainStruct(&context.mPhysicalDeviceFeatures, &queryProtectedMemoryFeatures);
-    context.mPhysicalDeviceProperties.pNext = &protectedMemoryProperties;
+    chainStruct(&context.mPhysicalDeviceProperties, &protectedMemoryProperties);
 
     // Initialize the following fields: physicalDeviceProperties, memoryProperties,
     // physicalDeviceFeatures, graphicsQueueFamilyIndex.
@@ -785,11 +787,23 @@ Driver* VulkanPlatform::createDriver(void* sharedContext,
         }
     }
 
-    mImpl->mDevice
+    bool requestPortabilitySubsetImageView2DOn3DImage = false;
-            = mImpl->mDevice == VK_NULL_HANDLE ? createLogicalDevice(mImpl->mPhysicalDevice,
+    if (setContains(deviceExts, VK_KHR_PORTABILITY_SUBSET_EXTENSION_NAME)) {
-                      context.mPhysicalDeviceFeatures, mImpl->mGraphicsQueueFamilyIndex, 
+        // We are on a non-conformant vulkan implementation so we need to ascertain if the features
-                      mImpl->mProtectedGraphicsQueueFamilyIndex, deviceExts)
+        // we need are available.
-                                               : mImpl->mDevice;
+        chainStruct(&context.mPhysicalDeviceFeatures, &context.mPortabilitySubsetFeatures);
+        vkGetPhysicalDeviceFeatures2(mImpl->mPhysicalDevice, &context.mPhysicalDeviceFeatures);
+        requestPortabilitySubsetImageView2DOn3DImage =
+                context.mPortabilitySubsetFeatures.imageView2DOn3DImage == VK_TRUE;
+    }
+
+    mImpl->mDevice =
+            mImpl->mDevice == VK_NULL_HANDLE
+                    ? createLogicalDevice(mImpl->mPhysicalDevice, context.mPhysicalDeviceFeatures,
+                              mImpl->mGraphicsQueueFamilyIndex,
+                              mImpl->mProtectedGraphicsQueueFamilyIndex, deviceExts,
+                              requestPortabilitySubsetImageView2DOn3DImage)
+                    : mImpl->mDevice;
     assert_invariant(mImpl->mDevice != VK_NULL_HANDLE);
 
     vkGetDeviceQueue(mImpl->mDevice, mImpl->mGraphicsQueueFamilyIndex, mImpl->mGraphicsQueueIndex,
@@ -806,9 +820,16 @@ Driver* VulkanPlatform::createDriver(void* sharedContext,
     }
 
     // Store the extension support in the context
-    context.mDebugUtilsSupported = setContains(instExts, VK_EXT_DEBUG_UTILS_EXTENSION_NAME);
+    if (!mImpl->mSharedContext) {
-    context.mDebugMarkersSupported = setContains(deviceExts, VK_EXT_DEBUG_MARKER_EXTENSION_NAME);
+        context.mDebugUtilsSupported = setContains(instExts, VK_EXT_DEBUG_UTILS_EXTENSION_NAME);
-    context.mMultiviewEnabled = setContains(deviceExts, VK_KHR_MULTIVIEW_EXTENSION_NAME);
+        context.mDebugMarkersSupported = setContains(deviceExts, VK_EXT_DEBUG_MARKER_EXTENSION_NAME);
+        context.mMultiviewEnabled = setContains(deviceExts, VK_KHR_MULTIVIEW_EXTENSION_NAME);
+    } else {
+        VulkanSharedContext const* scontext = (VulkanSharedContext const*) sharedContext;
+        context.mDebugUtilsSupported = scontext->debugUtilsSupported;
+        context.mDebugMarkersSupported = scontext->debugMarkersSupported;
+        context.mMultiviewEnabled = scontext->multiviewSupported;
+    }
 
     // Check the availability of lazily allocated memory
     {

filament/backend/src/vulkan/utils/Image.cpp

@@ -214,7 +214,7 @@ bool operator<(const VkImageSubresourceRange& a, const VkImageSubresourceRange&
     case filament::backend::VulkanLayout::VALUE: {                                                 \
         out << #VALUE;                                                                             \
         out << " ["                                                                                \
-            << filament::backend::imgutil::getVkLayout(                                            \
+            << filament::backend::fvkutils::getVkLayout(                                           \
                        filament::backend::VulkanLayout::VALUE)                                     \
             << "]";                                                                                \
         break;                                                                                     \

filament/include/filament/Engine.h

@@ -17,6 +17,7 @@
 #ifndef TNT_FILAMENT_ENGINE_H
 #define TNT_FILAMENT_ENGINE_H
 
+
 #include <filament/FilamentAPI.h>
 
 #include <backend/DriverEnums.h>
@@ -32,6 +33,7 @@
 #include <stdint.h>
 #include <stddef.h>
 
+
 namespace utils {
 class Entity;
 class EntityManager;
@@ -40,6 +42,10 @@ class JobSystem;
 
 namespace filament {
 
+namespace backend {
+class Driver;
+} // backend
+
 class BufferObject;
 class Camera;
 class ColorGrading;
@@ -183,6 +189,7 @@ public:
     using DriverConfig = backend::Platform::DriverConfig;
     using FeatureLevel = backend::FeatureLevel;
     using StereoscopicType = backend::StereoscopicType;
+    using Driver = backend::Driver;
 
     /**
      * Config is used to define the memory footprint used by the engine, such as the
@@ -582,6 +589,11 @@ public:
     static Engine* UTILS_NULLABLE getEngine(void* UTILS_NONNULL token);
 #endif
 
+    /**
+     * @return the Driver instance used by this Engine.
+     * @see OpenGLPlatform
+     */
+    backend::Driver const* UTILS_NONNULL getDriver() const noexcept;
 
     /**
      * Destroy the Engine instance and all associated resources.

filament/include/filament/MaterialInstance.h

@@ -121,7 +121,7 @@ public:
 
     /** inline helper to provide the name as a null-terminated string literal */
     template<typename T, typename = is_supported_parameter_t<T>>
-    void setParameter(StringLiteral name, T const& value) {
+    void setParameter(StringLiteral const name, T const& value) {
         setParameter<T>(name.data, name.size, value);
     }
 
@@ -148,14 +148,14 @@ public:
 
     /** inline helper to provide the name as a null-terminated string literal */
     template<typename T, typename = is_supported_parameter_t<T>>
-    void setParameter(StringLiteral name, const T* UTILS_NONNULL values, size_t count) {
+    void setParameter(StringLiteral const name, const T* UTILS_NONNULL values, size_t const count) {
         setParameter<T>(name.data, name.size, values, count);
     }
 
     /** inline helper to provide the name as a null-terminated C string */
     template<typename T, typename = is_supported_parameter_t<T>>
     void setParameter(const char* UTILS_NONNULL name,
-                      const T* UTILS_NONNULL values, size_t count) {
+                      const T* UTILS_NONNULL values, size_t const count) {
         setParameter<T>(name, strlen(name), values, count);
     }
 
@@ -176,7 +176,7 @@ public:
             Texture const* UTILS_NULLABLE texture, TextureSampler const& sampler);
 
     /** inline helper to provide the name as a null-terminated string literal */
-    void setParameter(StringLiteral name,
+    void setParameter(StringLiteral const name,
                       Texture const* UTILS_NULLABLE texture, TextureSampler const& sampler) {
         setParameter(name.data, name.size, texture, sampler);
     }
@@ -202,12 +202,12 @@ public:
             RgbType type, math::float3 color);
 
     /** inline helper to provide the name as a null-terminated string literal */
-    void setParameter(StringLiteral name, RgbType type, math::float3 color) {
+    void setParameter(StringLiteral const name, RgbType const type, math::float3 const color) {
         setParameter(name.data, name.size, type, color);
     }
 
     /** inline helper to provide the name as a null-terminated C string */
-    void setParameter(const char* UTILS_NONNULL name, RgbType type, math::float3 color) {
+    void setParameter(const char* UTILS_NONNULL name, RgbType const type, math::float3 const color) {
         setParameter(name, strlen(name), type, color);
     }
 
@@ -226,12 +226,12 @@ public:
             RgbaType type, math::float4 color);
 
     /** inline helper to provide the name as a null-terminated string literal */
-    void setParameter(StringLiteral name, RgbaType type, math::float4 color) {
+    void setParameter(StringLiteral const name, RgbaType const type, math::float4 const color) {
         setParameter(name.data, name.size, type, color);
     }
 
     /** inline helper to provide the name as a null-terminated C string */
-    void setParameter(const char* UTILS_NONNULL name, RgbaType type, math::float4 color) {
+    void setParameter(const char* UTILS_NONNULL name, RgbaType const type, math::float4 const color) {
         setParameter(name, strlen(name), type, color);
     }
 
@@ -251,7 +251,7 @@ public:
 
     /** inline helper to provide the name as a null-terminated C string */
     template<typename T, typename = is_supported_parameter_t<T>>
-    T getParameter(StringLiteral name) const {
+    T getParameter(StringLiteral const name) const {
         return getParameter<T>(name.data, name.size);
     }
 
@@ -376,11 +376,22 @@ public:
      */
     void setCullingMode(CullingMode culling) noexcept;
 
+    /**
+     * Overrides the default triangle culling state that was set on the material separately for the
+     * color and shadow passes
+     */
+    void setCullingMode(CullingMode colorPassCullingMode, CullingMode shadowPassCullingMode) noexcept;
+
     /**
      * Returns the face culling mode.
      */
     CullingMode getCullingMode() const noexcept;
 
+    /**
+     * Returns the face culling mode for the shadow passes.
+     */
+    CullingMode getShadowCullingMode() const noexcept;
+
     /**
      * Overrides the default color-buffer write state that was set on the material.
      */

filament/include/filament/Scene.h

@@ -141,6 +141,11 @@ public:
      */
     void removeEntities(const utils::Entity* UTILS_NONNULL entities, size_t count);
 
+    /**
+     * Remove all entities to the Scene.
+     */
+    void removeAllEntities() noexcept;
+
     /**
      * Returns the total number of Entities in the Scene, whether alive or not.
      * @return Total number of Entities in the Scene.

filament/src/Engine.cpp

@@ -68,6 +68,10 @@ Engine* Engine::getEngine(void* token) {
 }
 #endif
 
+Driver const* Engine::getDriver() const noexcept {
+    return std::addressof(downcast(this)->getDriver());
+}
+
 void Engine::destroy(Engine** pEngine) {
     if (pEngine) {
         Engine* engine = *pEngine;

filament/src/MaterialInstance.cpp

@@ -17,6 +17,26 @@
 #include <filament/MaterialInstance.h>
 
 #include "details/Material.h"
+#include "details/MaterialInstance.h"
+
+#include <filament/Color.h>
+#include <filament/MaterialEnums.h>
+
+#include <backend/DriverEnums.h>
+
+#include <utils/compiler.h>
+#include <utils/debug.h>
+
+#include <math/vec2.h>
+#include <math/vec3.h>
+#include <math/vec4.h>
+#include <math/mat3.h>
+
+#include <algorithm>
+#include <string_view>
+
+#include <stddef.h>
+#include <stdint.h>
 
 namespace filament {
 
@@ -85,7 +105,7 @@ void MaterialInstance::setParameter(const char* name, size_t nameLength, T const
 template<>
 UTILS_PUBLIC void MaterialInstance::setParameter(const char* name, size_t const nameLength, bool const& v) {
     // this kills tail-call optimization
-    setParameter(name, nameLength, (uint32_t)v);
+    setParameter(name, nameLength, uint32_t(v));
 }
 
 template<>
@@ -125,8 +145,8 @@ template UTILS_PUBLIC void MaterialInstance::setParameter<mat4f>   (const char*
 // ------------------------------------------------------------------------------------------------
 
 template <typename T, typename>
-void MaterialInstance::setParameter(const char* name, size_t nameLength, const T* value, size_t count) {
+void MaterialInstance::setParameter(const char* name, size_t nameLength, const T* values, size_t count) {
-    downcast(this)->setParameterImpl({ name, nameLength }, value, count);
+    downcast(this)->setParameterImpl({ name, nameLength }, values, count);
 }
 
 template<>
@@ -272,6 +292,11 @@ void MaterialInstance::setCullingMode(CullingMode const culling) noexcept {
     downcast(this)->setCullingMode(culling);
 }
 
+void MaterialInstance::setCullingMode(CullingMode const colorPassCullingMode,
+    CullingMode const shadowPassCullingMode) noexcept {
+    downcast(this)->setCullingMode(colorPassCullingMode, shadowPassCullingMode);
+}
+
 void MaterialInstance::setColorWrite(bool const enable) noexcept {
     downcast(this)->setColorWrite(enable);
 }
@@ -353,6 +378,10 @@ CullingMode MaterialInstance::getCullingMode() const noexcept {
     return downcast(this)->getCullingMode();
 }
 
+CullingMode MaterialInstance::getShadowCullingMode() const noexcept {
+    return downcast(this)->getShadowCullingMode();
+}
+
 bool MaterialInstance::isColorWriteEnabled() const noexcept {
     return downcast(this)->isColorWriteEnabled();
 }

filament/src/RenderPass.cpp

@@ -807,7 +807,13 @@ RenderPass::Command* RenderPass::generateCommandsImpl(CommandTypeFlags extraFlag
                     cmd.key &= ~Z_BUCKET_MASK;
                     cmd.key |= makeField(distanceBits >> 22u, Z_BUCKET_MASK, Z_BUCKET_SHIFT);
                 }
+
+                *curr = cmd;
+                // cancel command if both front and back faces are culled
+                curr->key |= select(mi->getCullingMode() == CullingMode::FRONT_AND_BACK);
+
             } else if constexpr (isDepthPass) {
+                const CullingMode cullingMode = hasShadowing ? mi->getShadowCullingMode() : mi->getCullingMode();
                 const RasterState rs = ma->getRasterState();
                 const TransparencyMode mode = mi->getTransparencyMode();
                 const BlendingMode blendingMode = ma->getBlendingMode();
@@ -816,7 +822,7 @@ RenderPass::Command* RenderPass::generateCommandsImpl(CommandTypeFlags extraFlag
                 const bool isPickingVariant = Variant::isPickingVariant(variant);
 
                 cmd.key |= mi->getSortingKey(); // already all set-up for direct or'ing
-                cmd.info.rasterState.culling = mi->getCullingMode();
+                cmd.info.rasterState.culling = cullingMode;
 
                 // FIXME: should writeDepthForShadowCasters take precedence over mi->getDepthWrite()?
                 cmd.info.rasterState.depthWrite = (1 // only keep bit 0
@@ -825,11 +831,12 @@ RenderPass::Command* RenderPass::generateCommandsImpl(CommandTypeFlags extraFlag
                                                    & !(filterTranslucentObjects & translucent)
                                                    & !(depthFilterAlphaMaskedObjects & rs.alphaToCoverage))
                                                   | writeDepthForShadowCasters;
+
+                *curr = cmd;
+                // cancel command if both front and back faces are culled
+                curr->key |= select(cullingMode == CullingMode::FRONT_AND_BACK);
             }
 
-            *curr = cmd;
-            // cancel command if both front and back faces are culled
-            curr->key |= select(mi->getCullingMode() == CullingMode::FRONT_AND_BACK);
             ++curr;
         }
     }

filament/src/Scene.cpp

@@ -55,6 +55,10 @@ void Scene::removeEntities(const Entity* entities, size_t const count) {
     downcast(this)->removeEntities(entities, count);
 }
 
+void Scene::removeAllEntities() noexcept {
+    downcast(this)->removeAllEntities();
+}
+
 size_t Scene::getEntityCount() const noexcept {
     return downcast(this)->getEntityCount();
 }

filament/src/details/Engine.cpp

@@ -25,7 +25,9 @@
 #include "details/Fence.h"
 #include "details/IndexBuffer.h"
 #include "details/IndirectLight.h"
+#include "details/InstanceBuffer.h"
 #include "details/Material.h"
+#include "details/MorphTargetBuffer.h"
 #include "details/Renderer.h"
 #include "details/Scene.h"
 #include "details/SkinningBuffer.h"
@@ -36,28 +38,39 @@
 #include "details/VertexBuffer.h"
 #include "details/View.h"
 
+#include <filament/ColorGrading.h>
 #include <filament/Engine.h>
 #include <filament/MaterialEnums.h>
 
 #include <private/filament/DescriptorSets.h>
 #include <private/filament/EngineEnums.h>
+#include <private/filament/Variant.h>
 
 #include <private/backend/PlatformFactory.h>
 
 #include <backend/DriverEnums.h>
 
+#include <utils/Allocator.h>
+#include <utils/CallStack.h>
 #include <utils/compiler.h>
 #include <utils/debug.h>
 #include <utils/Invocable.h>
 #include <utils/Log.h>
+#include <utils/ostream.h>
 #include <utils/Panic.h>
 #include <utils/PrivateImplementation-impl.h>
 #include <utils/Systrace.h>
 #include <utils/ThreadUtils.h>
 
+#include <math/vec3.h>
+#include <math/vec4.h>
+
 #include <algorithm>
+#include <chrono>
 #include <initializer_list>
 #include <memory>
+#include <mutex>
+#include <new>
 #include <optional>
 #include <thread>
 #include <string_view>
@@ -66,6 +79,7 @@
 
 #include <stddef.h>
 #include <stdint.h>
+#include <stdlib.h>
 #include <string.h>
 
 #include "generated/resources/materials.h"
@@ -101,7 +115,7 @@ Engine* FEngine::create(Builder const& builder) {
 
     // Normally we launch a thread and create the context and Driver from there (see FEngine::loop).
     // In the single-threaded case, we do so in the here and now.
-    if (!UTILS_HAS_THREADING) {
+    if constexpr (!UTILS_HAS_THREADING) {
         Platform* platform = builder->mPlatform;
         void* const sharedContext = builder->mSharedContext;
 
@@ -144,7 +158,7 @@ Engine* FEngine::create(Builder const& builder) {
     // now we can initialize the largest part of the engine
     instance->init();
 
-    if (!UTILS_HAS_THREADING) {
+    if constexpr (!UTILS_HAS_THREADING) {
         instance->execute();
     }
 
@@ -163,7 +177,7 @@ void FEngine::create(Builder const& builder, Invocable<void(void*)>&& callback)
     instance->mDriverThread = std::thread(&FEngine::loop, instance);
 
     // launch a thread to call the callback -- so it can't do any damage.
-    std::thread callbackThread = std::thread([instance, callback = std::move(callback)]() {
+    std::thread callbackThread = std::thread([instance, callback = std::move(callback)] {
         instance->mDriverBarrier.await();
         callback(instance);
     });
@@ -196,7 +210,7 @@ FEngine* FEngine::getEngine(void* token) {
 
 #endif
 
-// these must be static because only a pointer is copied to the render stream
+// These must be static because only a pointer is copied to the render stream
 // Note that these coordinates are specified in OpenGL clip space. Other backends can transform
 // these in the vertex shader as needed.
 static constexpr float4 sFullScreenTriangleVertices[3] = {
@@ -206,7 +220,7 @@ static constexpr float4 sFullScreenTriangleVertices[3] = {
 };
 
 // these must be static because only a pointer is copied to the render stream
-static const uint16_t sFullScreenTriangleIndices[3] = { 0, 1, 2 };
+static constexpr uint16_t sFullScreenTriangleIndices[3] = { 0, 1, 2 };
 
 FEngine::FEngine(Builder const& builder) :
         mBackend(builder->mBackend),
@@ -216,7 +230,6 @@ FEngine::FEngine(Builder const& builder) :
         mPostProcessManager(*this),
         mEntityManager(EntityManager::get()),
         mRenderableManager(*this),
-        mTransformManager(),
         mLightManager(*this),
         mCameraManager(*this),
         mCommandBufferQueue(
@@ -274,7 +287,7 @@ uint32_t FEngine::getJobSystemThreadPoolSize(Config const& config) noexcept {
     }
 
     // 1 thread for the user, 1 thread for the backend
-    int threadCount = (int)std::thread::hardware_concurrency() - 2;
+    int threadCount = int(std::thread::hardware_concurrency()) - 2;
     // make sure we have at least 1 thread though
     threadCount = std::max(1, threadCount);
     return threadCount;
@@ -347,8 +360,8 @@ void FEngine::init() {
     }
 
     // initialize the dummy textures so that their contents are not undefined
-    static const uint32_t zeroes[6] = {0};
+    static constexpr uint32_t zeroes[6] = {};
-    static const uint32_t ones = 0xffffffff;
+    static constexpr uint32_t ones = 0xffffffff;
 
     mDefaultIblTexture = downcast(Texture::Builder()
             .width(1).height(1).levels(1)
@@ -360,7 +373,7 @@ void FEngine::init() {
             { zeroes, sizeof(zeroes), Texture::Format::RGBA, Texture::Type::UBYTE });
 
     // 3 bands = 9 float3
-    const float sh[9 * 3] = { 0.0f };
+    constexpr float sh[9 * 3] = { 0.0f };
     mDefaultIbl = downcast(IndirectLight::Builder()
             .irradiance(3, reinterpret_cast<const float3*>(sh))
             .build(*this));
@@ -427,10 +440,10 @@ void FEngine::init() {
 #endif
                 break;
         }
-        mDefaultMaterial = downcast(defaultMaterialBuilder.build(*const_cast<FEngine*>(this)));
+        mDefaultMaterial = downcast(defaultMaterialBuilder.build(*this));
 
-        float3 dummyPositions[1] = {};
+        constexpr float3 dummyPositions[1] = {};
-        short4 dummyTangents[1] = {};
+        constexpr short4 dummyTangents[1] = {};
         mDummyMorphTargetBuffer->setPositionsAt(*this, 0, dummyPositions, 1, 0);
         mDummyMorphTargetBuffer->setTangentsAt(*this, 0, dummyTangents, 1, 0);
 
@@ -453,7 +466,7 @@ void FEngine::init() {
     mPostProcessManager.init();
 
     mDebugRegistry.registerProperty("d.shadowmap.debug_directional_shadowmap",
-            &debug.shadowmap.debug_directional_shadowmap, [this]() {
+            &debug.shadowmap.debug_directional_shadowmap, [this] {
                 mMaterials.forEach([this](FMaterial* material) {
                     if (material->getMaterialDomain() == MaterialDomain::SURFACE) {
 
@@ -469,7 +482,7 @@ void FEngine::init() {
             });
 
     mDebugRegistry.registerProperty("d.lighting.debug_froxel_visualization",
-            &debug.lighting.debug_froxel_visualization, [this]() {
+            &debug.lighting.debug_froxel_visualization, [this] {
                 mMaterials.forEach([this](FMaterial* material) {
                     if (material->getMaterialDomain() == MaterialDomain::SURFACE) {
 
@@ -607,7 +620,7 @@ void FEngine::shutdown() {
 
     // now wait for all pending commands to be executed and the thread to exit
     mCommandBufferQueue.requestExit();
-    if (!UTILS_HAS_THREADING) {
+    if constexpr (!UTILS_HAS_THREADING) {
         execute();
         getDriverApi().terminate();
     } else {
@@ -638,13 +651,13 @@ void FEngine::prepare() {
     DriverApi& driver = getDriverApi();
 
     for (auto& materialInstanceList: mMaterialInstances) {
-        materialInstanceList.second.forEach([&driver](FMaterialInstance* item) {
+        materialInstanceList.second.forEach([&driver](FMaterialInstance const* item) {
             item->commit(driver);
         });
     }
 
     mMaterials.forEach([](FMaterial* material) {
-#if FILAMENT_ENABLE_MATDBG
+#if FILAMENT_ENABLE_MATDBG // NOLINT(*-include-cleaner)
         material->checkProgramEdits();
 #endif
     });
@@ -668,7 +681,7 @@ void FEngine::flushAndWait() {
     flushAndWait(FENCE_WAIT_FOR_EVER);
 }
 
-bool FEngine::flushAndWait(uint64_t timeout) {
+bool FEngine::flushAndWait(uint64_t const timeout) {
     FILAMENT_CHECK_PRECONDITION(!mCommandBufferQueue.isPaused())
             << "Cannot call Engine::flushAndWait() when rendering thread is paused!";
 
@@ -749,7 +762,7 @@ int FEngine::loop() {
     }
 #endif
 
-#if FILAMENT_ENABLE_FGVIEWER
+#if FILAMENT_ENABLE_FGVIEWER // NOLINT(*-include-cleaner)
 #ifdef __ANDROID__
     const char* fgviewerPortString = "8085";
 #else
@@ -779,9 +792,9 @@ int FEngine::loop() {
     return 0;
 }
 
-void FEngine::flushCommandBuffer(CommandBufferQueue& commandQueue) {
+void FEngine::flushCommandBuffer(CommandBufferQueue& commandBufferQueue) const {
     getDriver().purge();
-    commandQueue.flush();
+    commandBufferQueue.flush();
 }
 
 const FMaterial* FEngine::getSkyboxMaterial() const noexcept {
@@ -802,7 +815,7 @@ const FMaterial* FEngine::getSkyboxMaterial() const noexcept {
  */
 
 template<typename T, typename ... ARGS>
-inline T* FEngine::create(ResourceList<T>& list,
+T* FEngine::create(ResourceList<T>& list,
         typename T::Builder const& builder, ARGS&& ... args) noexcept {
     T* p = mHeapAllocator.make<T>(*this, builder, std::forward<ARGS>(args)...);
     if (UTILS_LIKELY(p)) {
@@ -880,7 +893,7 @@ FMaterialInstance* FEngine::createMaterialInstance(const FMaterial* material,
         const FMaterialInstance* other, const char* name) noexcept {
     FMaterialInstance* p = mHeapAllocator.make<FMaterialInstance>(*this, other, name);
     if (UTILS_LIKELY(p)) {
-        auto pos = mMaterialInstances.emplace(material, "MaterialInstance");
+        auto const pos = mMaterialInstances.emplace(material, "MaterialInstance");
         pos.first->second.insert(p);
     }
     return p;
@@ -958,7 +971,7 @@ FCamera* FEngine::createCamera(Entity const entity) noexcept {
 }
 
 FCamera* FEngine::getCameraComponent(Entity const entity) noexcept {
-    auto ci = mCameraManager.getInstance(entity);
+    auto const ci = mCameraManager.getInstance(entity);
     return ci ? mCameraManager.getCamera(ci) : nullptr;
 }
 
@@ -1011,16 +1024,16 @@ void FEngine::cleanupResourceListLocked(Lock& lock, ResourceList<T>&& list) {
 
 template<typename T>
 UTILS_ALWAYS_INLINE
-inline bool FEngine::isValid(const T* ptr, ResourceList<T> const& list) const {
+bool FEngine::isValid(const T* ptr, ResourceList<T> const& list) const {
     auto& l = const_cast<ResourceList<T>&>(list);
     return l.find(ptr) != l.end();
 }
 
 template<typename T>
 UTILS_ALWAYS_INLINE
-inline bool FEngine::terminateAndDestroy(const T* ptr, ResourceList<T>& list) {
+bool FEngine::terminateAndDestroy(const T* p, ResourceList<T>& list) {
-    if (ptr == nullptr) return true;
+    if (p == nullptr) return true;
-    bool const success = list.remove(ptr);
+    bool const success = list.remove(p);
 
 #if UTILS_HAS_RTTI
     auto typeName = CallStack::typeName<T>();
@@ -1030,19 +1043,19 @@ inline bool FEngine::terminateAndDestroy(const T* ptr, ResourceList<T>& list) {
 #endif
 
     if (ASSERT_PRECONDITION_NON_FATAL(success,
-            "Object %s at %p doesn't exist (double free?)", typeNameCStr, ptr)) {
+            "Object %s at %p doesn't exist (double free?)", typeNameCStr, p)) {
-        const_cast<T*>(ptr)->terminate(*this);
+        const_cast<T*>(p)->terminate(*this);
-        mHeapAllocator.destroy(const_cast<T*>(ptr));
+        mHeapAllocator.destroy(const_cast<T*>(p));
     }
     return success;
 }
 
 template<typename T, typename Lock>
 UTILS_ALWAYS_INLINE
-inline bool FEngine::terminateAndDestroyLocked(Lock& lock, const T* ptr, ResourceList<T>& list) {
+bool FEngine::terminateAndDestroyLocked(Lock& lock, const T* p, ResourceList<T>& list) {
-    if (ptr == nullptr) return true;
+    if (p == nullptr) return true;
     lock.lock();
-    bool const success = list.remove(ptr);
+    bool const success = list.remove(p);
     lock.unlock();
 
 #if UTILS_HAS_RTTI
@@ -1053,9 +1066,9 @@ inline bool FEngine::terminateAndDestroyLocked(Lock& lock, const T* ptr, Resourc
 #endif
 
     if (ASSERT_PRECONDITION_NON_FATAL(success,
-            "Object %s at %p doesn't exist (double free?)", typeNameCStr, ptr)) {
+            "Object %s at %p doesn't exist (double free?)", typeNameCStr, p)) {
-        const_cast<T*>(ptr)->terminate(*this);
+        const_cast<T*>(p)->terminate(*this);
-        mHeapAllocator.destroy(const_cast<T*>(ptr));
+        mHeapAllocator.destroy(const_cast<T*>(p));
     }
     return success;
 }
@@ -1148,11 +1161,11 @@ bool FEngine::destroy(const FInstanceBuffer* p){
 }
 
 UTILS_NOINLINE
-bool FEngine::destroy(const FMaterial* ptr) {
+bool FEngine::destroy(const FMaterial* p) {
-    if (ptr == nullptr) return true;
+    if (p == nullptr) return true;
-    bool const success = terminateAndDestroy(ptr, mMaterials);
+    bool const success = terminateAndDestroy(p, mMaterials);
     if (UTILS_LIKELY(success)) {
-        auto pos = mMaterialInstances.find(ptr);
+        auto const pos = mMaterialInstances.find(p);
         if (UTILS_LIKELY(pos != mMaterialInstances.cend())) {
             mMaterialInstances.erase(pos);
         }
@@ -1161,8 +1174,8 @@ bool FEngine::destroy(const FMaterial* ptr) {
 }
 
 UTILS_NOINLINE
-bool FEngine::destroy(const FMaterialInstance* ptr) {
+bool FEngine::destroy(const FMaterialInstance* p) {
-    if (ptr == nullptr) return true;
+    if (p == nullptr) return true;
 
     // Check that the material instance we're destroying is not in use in the RenderableManager
     // To do this, we currently need to inspect all render primitives in the RenderableManager
@@ -1178,13 +1191,13 @@ bool FEngine::destroy(const FMaterialInstance* ptr) {
             for (size_t j = 0; j < primitiveCount; j++) {
                 auto const* const mi = rcm.getMaterialInstanceAt(ri, 0, j);
                 if (features.engine.debug.assert_material_instance_in_use) {
-                    FILAMENT_CHECK_PRECONDITION(mi != ptr)
+                    FILAMENT_CHECK_PRECONDITION(mi != p)
                             << "destroying MaterialInstance \""
                             << mi->getName() << "\" which is still in use by Renderable (entity="
                             << entity.getId() << ", instance="
                             << ri.asValue() << ", index=" << j << ")";
                 } else {
-                    if (UTILS_UNLIKELY(mi == ptr)) {
+                    if (UTILS_UNLIKELY(mi == p)) {
                         slog.e  << "destroying MaterialInstance \""
                                 << mi->getName() << "\" which is still in use by Renderable (entity="
                                 << entity.getId() << ", instance="
@@ -1196,11 +1209,11 @@ bool FEngine::destroy(const FMaterialInstance* ptr) {
         }
     }
 
-    if (ptr->isDefaultInstance()) return false;
+    if (p->isDefaultInstance()) return false;
-    auto pos = mMaterialInstances.find(ptr->getMaterial());
+    auto const pos = mMaterialInstances.find(p->getMaterial());
     assert_invariant(pos != mMaterialInstances.cend());
     if (pos != mMaterialInstances.cend()) {
-        return terminateAndDestroy(ptr, pos->second);
+        return terminateAndDestroy(p, pos->second);
     }
     // this shouldn't happen, this would be double-free
     return false;
@@ -1253,7 +1266,7 @@ bool FEngine::isValid(const FMaterial* m, const FMaterialInstance* p) const {
     }
 
     // then find the material instance list for that material
-    auto it = mMaterialInstances.find(m);
+    auto const it = mMaterialInstances.find(m);
     if (it == mMaterialInstances.end()) {
         // this could happen if this material has no material instances at all
         return false;
@@ -1342,7 +1355,7 @@ void* FEngine::streamAlloc(size_t const size, size_t const alignment) noexcept {
 
 bool FEngine::execute() {
     // wait until we get command buffers to be executed (or thread exit requested)
-    auto buffers = mCommandBufferQueue.waitForCommands();
+    auto const buffers = mCommandBufferQueue.waitForCommands();
     if (UTILS_UNLIKELY(buffers.empty())) {
         return false;
     }
@@ -1381,7 +1394,7 @@ Engine::FeatureLevel FEngine::getSupportedFeatureLevel() const noexcept {
 
 Engine::FeatureLevel FEngine::setActiveFeatureLevel(FeatureLevel featureLevel) {
     FILAMENT_CHECK_PRECONDITION(featureLevel <= getSupportedFeatureLevel())
-            << "Feature level " << (unsigned)featureLevel << " not supported";
+            << "Feature level " << unsigned(featureLevel) << " not supported";
     FILAMENT_CHECK_PRECONDITION(mActiveFeatureLevel >= FeatureLevel::FEATURE_LEVEL_1)
             << "Cannot adjust feature level beyond 0 at runtime";
     return (mActiveFeatureLevel = std::max(mActiveFeatureLevel, featureLevel));
@@ -1400,7 +1413,7 @@ void FEngine::unprotected() noexcept {
     mUnprotectedDummySwapchain->makeCurrent(getDriverApi());
 }
 
-bool FEngine::setFeatureFlag(char const* name, bool const value) noexcept {
+bool FEngine::setFeatureFlag(char const* name, bool const value) const noexcept {
     auto* const p = getFeatureFlagPtr(name);
     if (p) {
         *p = value;
@@ -1471,7 +1484,7 @@ Engine::Builder& Engine::Builder::feature(char const* name, bool const value) no
 }
 
 Engine::Builder& Engine::Builder::features(std::initializer_list<char const *> const list) noexcept {
-    for (auto name : list) {
+    for (auto const name : list) {
         if (name) {
             feature(name, true);
         }
@@ -1500,15 +1513,15 @@ Engine::Config Engine::BuilderDetails::validateConfig(Config config) noexcept {
     // Use at least the defaults set by the build system
     config.minCommandBufferSizeMB = std::max(
             config.minCommandBufferSizeMB,
-            (uint32_t)FILAMENT_MIN_COMMAND_BUFFERS_SIZE_IN_MB);
+            uint32_t(FILAMENT_MIN_COMMAND_BUFFERS_SIZE_IN_MB)); // NOLINT(*-include-cleaner)
 
     config.perFrameCommandsSizeMB = std::max(
             config.perFrameCommandsSizeMB,
-            (uint32_t)FILAMENT_PER_FRAME_COMMANDS_SIZE_IN_MB);
+            uint32_t(FILAMENT_PER_FRAME_COMMANDS_SIZE_IN_MB)); // NOLINT(*-include-cleaner)
 
     config.perRenderPassArenaSizeMB = std::max(
             config.perRenderPassArenaSizeMB,
-            (uint32_t)FILAMENT_PER_RENDER_PASS_ARENA_SIZE_IN_MB);
+            uint32_t(FILAMENT_PER_RENDER_PASS_ARENA_SIZE_IN_MB)); // NOLINT(*-include-cleaner)
 
     config.commandBufferSizeMB = std::max(
             config.commandBufferSizeMB,

filament/src/details/Engine.h

@@ -61,6 +61,8 @@
 #include <filament/Texture.h>
 #include <filament/VertexBuffer.h>
 
+#include <backend/DriverEnums.h>
+
 #include <utils/Allocator.h>
 #include <utils/compiler.h>
 #include <utils/CountDownLatch.h>
@@ -122,12 +124,11 @@ class ResourceAllocator;
  */
 class FEngine : public Engine {
 public:
-
+    void* operator new(std::size_t const size) noexcept {
-    inline void* operator new(std::size_t const size) noexcept {
         return utils::aligned_alloc(size, alignof(FEngine));
     }
 
-    inline void operator delete(void* p) noexcept {
+    void operator delete(void* p) noexcept {
         utils::aligned_free(p);
     }
 
@@ -490,7 +491,7 @@ public:
     backend::Handle<backend::HwTexture> getOneTextureArray() const { return mDummyOneTextureArray; }
     backend::Handle<backend::HwTexture> getZeroTextureArray() const { return mDummyZeroTextureArray; }
 
-    static constexpr const size_t MiB = 1024u * 1024u;
+    static constexpr size_t MiB = 1024u * 1024u;
     size_t getMinCommandBufferSize() const noexcept { return mConfig.minCommandBufferSizeMB * MiB; }
     size_t getCommandBufferSize() const noexcept { return mConfig.commandBufferSizeMB * MiB; }
     size_t getPerFrameCommandsSize() const noexcept { return mConfig.perFrameCommandsSizeMB * MiB; }
@@ -510,15 +511,15 @@ public:
     void resetBackendState() noexcept;
 #endif
 
+    backend::Driver& getDriver() const noexcept { return *mDriver; }
+
 private:
     explicit FEngine(Builder const& builder);
     void init();
     void shutdown();
 
     int loop();
-    void flushCommandBuffer(backend::CommandBufferQueue& commandBufferQueue);
+    void flushCommandBuffer(backend::CommandBufferQueue& commandBufferQueue) const;
-
-    backend::Driver& getDriver() const noexcept { return *mDriver; }
 
     template<typename T>
     bool isValid(const T* ptr, ResourceList<T> const& list) const;
@@ -729,7 +730,7 @@ public:
         return { mFeatures.data(), mFeatures.size() };
     }
 
-    bool setFeatureFlag(char const* name, bool value) noexcept;
+    bool setFeatureFlag(char const* name, bool value) const noexcept;
     std::optional<bool> getFeatureFlag(char const* name) const noexcept;
     bool* getFeatureFlagPtr(std::string_view name, bool allowConstant = false) const noexcept;
 };

filament/src/details/MaterialInstance.cpp

@@ -196,10 +196,10 @@ void FMaterialInstance::commit(DriverApi& driver) const {
         for (auto const& [binding, p]: mTextureParameters) {
             assert_invariant(p.texture);
             // TODO: figure out a way to do this more efficiently (isValid() is a hashmap lookup)
-            FEngine& engine = mMaterial->getEngine();
+            FEngine const& engine = mMaterial->getEngine();
             FILAMENT_CHECK_PRECONDITION(engine.isValid(p.texture))
                     << "Invalid texture still bound to MaterialInstance: '" << getName() << "'\n";
-            Handle<HwTexture> handle = p.texture->getHwHandleForSampling();
+            Handle<HwTexture> const handle = p.texture->getHwHandleForSampling();
             assert_invariant(handle);
             mDescriptorSet.setSampler(binding, handle, p.params);
         }
@@ -216,7 +216,7 @@ void FMaterialInstance::commit(DriverApi& driver) const {
 
 void FMaterialInstance::setParameter(std::string_view const name,
         Handle<HwTexture> texture, SamplerParams const params) {
-    auto binding = mMaterial->getSamplerBinding(name);
+    auto const binding = mMaterial->getSamplerBinding(name);
     mDescriptorSet.setSampler(binding, texture, params);
 }
 
@@ -243,7 +243,7 @@ void FMaterialInstance::setParameterImpl(std::string_view const name,
     }
 #endif
 
-    auto binding = mMaterial->getSamplerBinding(name);
+    auto const binding = mMaterial->getSamplerBinding(name);
     if (texture && texture->textureHandleCanMutate()) {
         mTextureParameters[binding] = { texture, sampler.getSamplerParams() };
     } else {
@@ -328,13 +328,13 @@ const char* FMaterialInstance::getName() const noexcept {
 void FMaterialInstance::use(FEngine::DriverApi& driver) const {
 
     if (UTILS_UNLIKELY(mMissingSamplerDescriptors.any())) {
-        std::call_once(mMissingSamplersFlag, [this]() {
+        std::call_once(mMissingSamplersFlag, [this] {
             auto const& list = mMaterial->getSamplerInterfaceBlock().getSamplerInfoList();
             slog.w << "sampler parameters not set in MaterialInstance \""
                    << mName.c_str_safe() << "\" or Material \""
                    << mMaterial->getName().c_str_safe() << "\":\n";
             mMissingSamplerDescriptors.forEachSetBit([&list](descriptor_binding_t binding) {
-                auto pos = std::find_if(list.begin(), list.end(), [binding](const auto& item) {
+                auto const pos = std::find_if(list.begin(), list.end(), [binding](const auto& item) {
                     return item.binding == binding;
                 });
                 // just safety-check, should never fail
@@ -368,7 +368,7 @@ void FMaterialInstance::fixMissingSamplers() const {
         // here we need to set the samplers that are missing
         auto const& list = mMaterial->getSamplerInterfaceBlock().getSamplerInfoList();
         missingSamplerDescriptors.forEachSetBit([this, &list](descriptor_binding_t binding) {
-            auto pos = std::find_if(list.begin(), list.end(), [binding](const auto& item) {
+            auto const pos = std::find_if(list.begin(), list.end(), [binding](const auto& item) {
                 return item.binding == binding;
             });
 

filament/src/details/MaterialInstance.h

@@ -94,6 +94,8 @@ public:
 
     backend::CullingMode getCullingMode() const noexcept { return mCulling; }
 
+    backend::CullingMode getShadowCullingMode() const noexcept { return mShadowCulling; }
+
     bool isColorWriteEnabled() const noexcept { return mColorWrite; }
 
     bool isDepthWriteEnabled() const noexcept { return mDepthWrite; }
@@ -137,6 +139,11 @@ public:
 
     void setCullingMode(CullingMode const culling) noexcept { mCulling = culling; }
 
+    void setCullingMode(CullingMode const color, CullingMode const shadow) noexcept {
+        mCulling = color;
+        mShadowCulling = shadow;
+    }
+
     void setColorWrite(bool const enable) noexcept { mColorWrite = enable; }
 
     void setDepthWrite(bool const enable) noexcept { mDepthWrite = enable; }
@@ -271,7 +278,9 @@ private:
     float mSpecularAntiAliasingThreshold = 0.0f;
 
     backend::CullingMode mCulling : 2;
+    backend::CullingMode mShadowCulling : 2;
     backend::RasterState::DepthFunc mDepthFunc : 3;
+
     bool mColorWrite : 1;
     bool mDepthWrite : 1;
     bool mHasScissor : 1;
@@ -283,8 +292,8 @@ private:
 
     // Scissor rectangle is specified as: Left Bottom Width Height.
     backend::Viewport mScissorRect = { 0, 0,
-            (uint32_t)std::numeric_limits<int32_t>::max(),
+            uint32_t(std::numeric_limits<int32_t>::max()),
-            (uint32_t)std::numeric_limits<int32_t>::max()
+            uint32_t(std::numeric_limits<int32_t>::max())
     };
 
     utils::CString mName;

filament/src/details/Scene.cpp

@@ -546,6 +546,11 @@ void FScene::removeEntities(const Entity* entities, size_t const count) {
     }
 }
 
+UTILS_NOINLINE
+void FScene::removeAllEntities() noexcept {
+    mEntities.clear();
+}
+
 UTILS_NOINLINE
 size_t FScene::getRenderableCount() const noexcept {
     FEngine& engine = mEngine;

filament/src/details/Scene.h

@@ -199,6 +199,7 @@ private:
     void addEntities(const utils::Entity* entities, size_t count);
     void remove(utils::Entity entity);
     void removeEntities(const utils::Entity* entities, size_t count);
+    void removeAllEntities() noexcept;
     size_t getEntityCount() const noexcept { return mEntities.size(); }
     size_t getRenderableCount() const noexcept;
     size_t getLightCount() const noexcept;

ios/CocoaPods/Filament.podspec

@@ -1,12 +1,12 @@
 Pod::Spec.new do |spec|
   spec.name = "Filament"
-  spec.version = "1.56.7"
+  spec.version = "1.57.0"
   spec.license = { :type => "Apache 2.0", :file => "LICENSE" }
   spec.homepage = "https://google.github.io/filament"
   spec.authors = "Google LLC."
   spec.summary = "Filament is a real-time physically based rendering engine for Android, iOS, Windows, Linux, macOS, and WASM/WebGL."
   spec.platform = :ios, "11.0"
-  spec.source = { :http => "https://github.com/google/filament/releases/download/v1.56.7/filament-v1.56.7-ios.tgz" }
+  spec.source = { :http => "https://github.com/google/filament/releases/download/v1.57.0/filament-v1.57.0-ios.tgz" }
 
   # Fix linking error with Xcode 12; we do not yet support the simulator on Apple silicon.
   spec.pod_target_xcconfig = {

libs/filabridge/include/filament/MaterialEnums.h

@@ -28,7 +28,7 @@
 namespace filament {
 
 // update this when a new version of filament wouldn't work with older materials
-static constexpr size_t MATERIAL_VERSION = 56;
+static constexpr size_t MATERIAL_VERSION = 57;
 
 /**
  * Supported shading models

libs/filamentapp/src/FilamentApp.cpp

@@ -704,19 +704,12 @@ FilamentApp::Window::Window(FilamentApp* filamentApp,
         ::prepareNativeWindow(mWindow);
 
         void* metalLayer = nullptr;
-        if (config.backend == filament::Engine::Backend::METAL) {
+        if (config.backend == filament::Engine::Backend::METAL || config.backend == filament::Engine::Backend::VULKAN) {
             metalLayer = setUpMetalLayer(nativeWindow);
-            // The swap chain on Metal is a CAMetalLayer.
+            // The swap chain on both native Metal and MoltenVK is a CAMetalLayer.
             nativeSwapChain = metalLayer;
         }
 
-#if defined(FILAMENT_DRIVER_SUPPORTS_VULKAN)
-        if (config.backend == filament::Engine::Backend::VULKAN) {
-            // We request a Metal layer for rendering via MoltenVK.
-            setUpMetalLayer(nativeWindow);
-        }
-#endif
-
 #endif
 
         // Write back the active feature level.

libs/matdbg/src/ApiHandler.cpp

@@ -222,8 +222,13 @@ bool ApiHandler::handleGetApiShader(struct mg_connection* conn,
 }
 
 void ApiHandler::addMaterial(MaterialRecord const* material) {
+    updateMaterial(material->key);
+}
+
+void ApiHandler::updateMaterial(uint32_t key) {
     std::unique_lock const lock(mStatusMutex);
-    snprintf(statusMaterialId, sizeof(statusMaterialId), "%8.8x", material->key);
+    mCurrentStatus++;
+    snprintf(statusMaterialId, sizeof(statusMaterialId), "%8.8x", key);
     mStatusCondition.notify_all();
 }
 
@@ -288,8 +293,11 @@ bool ApiHandler::handlePost(CivetServer* server, struct mg_connection* conn) {
         sstream >> std::hex >> matid >> std::dec >> api >> shaderIndex;
         std::string const shader = sstream.str().substr(sstream.tellg());
 
-        mServer->handleEditCommand(matid, backend::Backend(api), shaderIndex, shader.c_str(),
+        if (!mServer->handleEditCommand(matid, backend::Backend(api), shaderIndex, shader.c_str(),
-                shader.size());
+                shader.size())) {
+            return error(__LINE__, uri);
+        }
+        updateMaterial(matid);
 
         mg_printf(conn, "HTTP/1.1 200 OK\r\nConnection: close");
         return true;

libs/matdbg/src/ApiHandler.h

@@ -55,6 +55,8 @@ private:
     bool handleGetStatus(struct mg_connection* conn, struct mg_request_info const* request);
     MaterialRecord const* getMaterialRecord(struct mg_request_info const* request);
 
+    void updateMaterial(uint32_t key);
+
     DebugServer* mServer;
 
     std::mutex mStatusMutex;
@@ -64,7 +66,7 @@ private:
     // This variable is to implement a *hanging* effect for /api/status. The call to /api/status
     // will always block until statusMaterialId is updated again. The client is expected to keep
     // calling /api/status (a constant "pull" to simulate a push).
-    std::atomic<uint64_t> mCurrentStatus = 0;
+    uint64_t mCurrentStatus = 0;
 
     SourceFormatter mFormatter;
 };

libs/matdbg/src/ShaderReplacer.cpp

@@ -25,6 +25,7 @@
 
 #include <utils/Log.h>
 
+#include <algorithm>
 #include <sstream>
 
 #include <GlslangToSpv.h>
@@ -50,10 +51,30 @@ using namespace glslang;
 using namespace utils;
 
 using std::ostream;
-using std::stringstream;
 using std::streampos;
+using std::stringstream;
 using std::vector;
 
+
+namespace {
+
+// This is to ensure that the edited material package have the same order of shaders as the output
+// of the original material. We use the ordering in the front-end to simplify logic.
+template<typename RecordType>
+void sortRecords(std::vector<RecordType>& records) {
+    std::sort(records.begin(), records.end(), [](RecordType const& a, RecordType const& b) -> bool {
+        if (a.shaderModel != b.shaderModel) {
+            return a.shaderModel < b.shaderModel;
+        }
+        if (a.variant.key != b.variant.key) {
+            return a.variant.key < b.variant.key;
+        }
+        return a.stage < b.stage;
+    });
+}
+
+} // anonymous
+
 // Tiny database of shader text that can import / export MaterialTextChunk and DictionaryTextChunk.
 class ShaderIndex {
 public:
@@ -344,6 +365,7 @@ void ShaderIndex::writeChunks(ostream& stream) {
     for (const auto& record : mShaderRecords) {
         lines.addText(record.shader);
     }
+    sortRecords(mShaderRecords);
 
     filamat::ChunkContainer cc;
     const auto& dchunk = cc.push<DictionaryTextChunk>(std::move(lines), mDictTag);
@@ -406,6 +428,8 @@ void BlobIndex::writeChunks(ostream& stream) {
         }
     };
 
+    sortRecords(mShaderRecords);
+
     // Apply SMOL-V compression and write out the results.
     filamat::ChunkContainer cc;
     cc.push<MaterialBinaryChunk>(std::move(mShaderRecords), ChunkType::MaterialSpirv);

libs/matdbg/src/SourceFormatter.cpp

@@ -34,7 +34,7 @@ std::string SourceFormatter::format(char const* source) {
     while (fgets(output, 1024, fp) != NULL) {}
 
     int status = pclose(fp);
-    if (!fp || !WEXITSTATUS(status)) {
+    if (!fp || WEXITSTATUS(status)) {
         std::call_once(mClangWarningFlag, []() {
             utils::slog.w << "[matdbg] unable to run clang-format to format shader file. "
                           << "Please make sure it's installed." << utils::io::endl;

samples/CMakeLists.txt

@@ -240,6 +240,25 @@ function(add_demo NAME)
     endif()
 endfunction()
 
+function(add_demo2 NAME)
+    include_directories(${GENERATION_ROOT})
+    if (APPLE)
+        add_executable(${NAME} helper.h helper.mm ${NAME}.cpp)
+        target_link_libraries(${NAME} PRIVATE sample-resources)
+        target_compile_options(${NAME} PRIVATE ${COMPILER_FLAGS})
+        set_target_properties(${NAME} PROPERTIES FOLDER Samples)
+
+        # This is needed after XCode 15.3
+        target_link_libraries(${NAME} PUBLIC "-framework Cocoa -framework QuartzCore" sdl2)
+        set_target_properties(${NAME} PROPERTIES BUILD_WITH_INSTALL_RPATH TRUE)
+        set_target_properties(${NAME} PROPERTIES INSTALL_RPATH /usr/local/lib)
+    else()
+        add_demo(${NAME})
+    endif()
+    target_link_libraries(${NAME} PRIVATE gltfio)
+endfunction()
+
+
 if (NOT ANDROID)
     add_demo(animation)
     add_demo(depthtesting)
@@ -249,7 +268,7 @@ if (NOT ANDROID)
     add_demo(heightfield)
     add_demo(hellomorphing)
     add_demo(hellopbr)
-    add_demo(hellotriangle)
+    add_demo2(hellotriangle)
     add_demo(helloskinning)
     add_demo(helloskinningbuffer)
     add_demo(helloskinningbuffer_morebones)

samples/hellotriangle.cpp

@@ -1,192 +1,191 @@
-/*
+#include <fstream>
- * Copyright (C) 2018 The Android Open Source Project
+#include <iostream>
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
 
 #include <filament/Camera.h>
 #include <filament/Engine.h>
 #include <filament/IndexBuffer.h>
-#include <filament/Material.h>
+#include <filament/LightManager.h>
-#include <filament/MaterialInstance.h>
 #include <filament/RenderableManager.h>
+#include <filament/Renderer.h>
 #include <filament/Scene.h>
 #include <filament/Skybox.h>
-#include <filament/TransformManager.h>
-#include <filament/VertexBuffer.h>
 #include <filament/View.h>
+#include <filament/Viewport.h>
+
+#include <filamat/MaterialBuilder.h>
 
 #include <utils/EntityManager.h>
+#include <utils/Log.h>
 
-#include <filamentapp/Config.h>
+#include <math/norm.h>
-#include <filamentapp/FilamentApp.h>
 
-#include <getopt/getopt.h>
+#include <gltfio/AssetLoader.h>
+#include <gltfio/ResourceLoader.h>
 
-#include <cmath>
+#include <SDL.h>
-#include <iostream>
+#include <SDL_syswm.h>
+#include <SDL_video.h>
 
 
-#include "generated/resources/resources.h"
+#if defined(__linux__)
+void* getNativeWindow(SDL_Window* sdlWindow) {
+    SDL_SysWMinfo wmi;
+    SDL_VERSION(&wmi.version);
+    SDL_GetWindowWMInfo(sdlWindow, &wmi);
+    if (wmi.subsystem == SDL_SYSWM_X11) {
+        Window win = (Window) wmi.info.x11.window;
+        return (void*) win;
+    } else {
+        std::cout << "Unknown SDL subsystem";
+    }
+    return nullptr;
+}
+#elif defined(__APPLE__)
+
+#include "helper.h"
+
+#endif
+
+SDL_Window* createSDLwindow() {
+    uint32_t windowFlags = SDL_WINDOW_SHOWN | SDL_WINDOW_RESIZABLE | SDL_WINDOW_ALLOW_HIGHDPI;
+    SDL_Window* win = SDL_CreateWindow("Hello World!", 100, 100, 600, 400, 0);
+    if (win == nullptr) {
+        std::cout << "SDL_CreateWindow Error: " << SDL_GetError() << std::endl;
+        SDL_Quit();
+        return nullptr;
+    }
+
+    return win;
+}
 
 using namespace filament;
-using utils::Entity;
+using namespace math;
-using utils::EntityManager;
+using namespace utils;
-
+int main() {
-struct App {
+    if (SDL_Init(SDL_INIT_VIDEO) < 0) {
-    Config config;
+        std::cout << "SDL_Init Error: " << SDL_GetError() << std::endl;        
-    VertexBuffer* vb;
+        return 1;
-    IndexBuffer* ib;
-    Material* mat;
-    Camera* cam;
-    Entity camera;
-    Skybox* skybox;
-    Entity renderable;
-};
-
-struct Vertex {
-    filament::math::float2 position;
-    uint32_t color;
-};
-
-static const Vertex TRIANGLE_VERTICES[3] = {
-    {{1, 0}, 0xffff0000u},
-    {{cos(M_PI * 2 / 3), sin(M_PI * 2 / 3)}, 0xff00ff00u},
-    {{cos(M_PI * 4 / 3), sin(M_PI * 4 / 3)}, 0xff0000ffu},
-};
-
-static constexpr uint16_t TRIANGLE_INDICES[3] = { 0, 1, 2 };
-
-static void printUsage(char* name) {
-    std::string exec_name(utils::Path(name).getName());
-    std::string usage(
-            "HELLOTRIANGLE renders a spinning colored triangle\n"
-            "Usage:\n"
-            "    HELLOTRIANGLE [options]\n"
-            "Options:\n"
-            "   --help, -h\n"
-            "       Prints this message\n\n"
-            "   --api, -a\n"
-            "       Specify the backend API: opengl, vulkan, or metal\n"
-    );
-    const std::string from("HELLOTRIANGLE");
-    for (size_t pos = usage.find(from); pos != std::string::npos; pos = usage.find(from, pos)) {
-        usage.replace(pos, from.length(), exec_name);
     }
-    std::cout << usage;
+    const static uint32_t indices[] = { 0, 1, 2, };
-}
 
-static int handleCommandLineArguments(int argc, char* argv[], App* app) {
+    const static math::float3 vertices[] = {
-    static constexpr const char* OPTSTR = "ha:";
+        { -10, 0, -10 },
-    static const struct option OPTIONS[] = {
+        { -10, 0, 10 },
-            { "help", no_argument,       nullptr, 'h' },
+        { 10, 0, 10 },
-            { "api",  required_argument, nullptr, 'a' },
-            { nullptr, 0,                nullptr, 0 }
     };
-    int opt;
+
-    int option_index = 0;
+    short4 tbn = math::packSnorm16(
-    while ((opt = getopt_long(argc, argv, OPTSTR, OPTIONS, &option_index)) >= 0) {
+            mat3f::packTangentFrame(
-        std::string arg(optarg ? optarg : "");
+                    math::mat3f{
-        switch (opt) {
+                            float3{ 1.0f, 0.0f, 0.0f },
-            default:
+                            float3{ 0.0f, 0.0f, 1.0f }, float3{ 0.0f, 1.0f, 0.0f } })
-            case 'h':
+                    .xyzw);
-                printUsage(argv[0]);
+
-                exit(0);
+    const static math::short4 normals[]{ tbn, tbn, tbn };
-            case 'a':
+    SDL_Window* window = createSDLwindow();
-                if (arg == "opengl") {
+    if (!window) {
-                    app->config.backend = Engine::Backend::OPENGL;
+        return 1;
-                } else if (arg == "vulkan") {
+    }
-                    app->config.backend = Engine::Backend::VULKAN;
+    Engine* engine = Engine::create(filament::backend::Backend::VULKAN);
-                } else if (arg == "metal") {
+    SwapChain* swapChain = engine->createSwapChain(getNativeWindow(window));
-                    app->config.backend = Engine::Backend::METAL;
+    Renderer* renderer = engine->createRenderer();
-                } else {
+
-                    std::cerr << "Unrecognized backend. Must be 'opengl'|'vulkan'|'metal'.\n";
+    auto cameraEntity = EntityManager::get().create();
-                    exit(1);
+    Camera* camera = engine->createCamera(cameraEntity);
-                }
+    View* view = engine->createView();
-                break;
+    Scene* scene = engine->createScene();
+
+    view->setCamera(camera);
+    // Determine the current size of the window in physical pixels.
+    uint32_t w, h;
+    SDL_GL_GetDrawableSize(window, (int*) &w, (int*) &h);
+    camera->lookAt(float3(0, 50.5f, 0), float3(0, 0, 0), float3(1.f, 0, 0));
+    camera->setProjection(45.0, double(w) / h, 0.1, 50, Camera::Fov::VERTICAL);
+    view->setViewport({ 0, 0, w, h });
+    view->setScene(scene);
+    view->setPostProcessingEnabled(false);
+
+    VertexBuffer* vertexBuffer =
+            VertexBuffer::Builder()
+                    .vertexCount(3)
+                    .bufferCount(2)
+                    .attribute(VertexAttribute::POSITION, 0, VertexBuffer::AttributeType::FLOAT3)
+                    .attribute(VertexAttribute::TANGENTS, 1, VertexBuffer::AttributeType::SHORT4)
+                    .normalized(VertexAttribute::TANGENTS)
+                    .build(*engine);
+
+    vertexBuffer->setBufferAt(*engine, 0,
+            VertexBuffer::BufferDescriptor(vertices,
+                    vertexBuffer->getVertexCount() * sizeof(vertices[0])));
+    vertexBuffer->setBufferAt(*engine, 1,
+            VertexBuffer::BufferDescriptor(normals,
+                    vertexBuffer->getVertexCount() * sizeof(normals[0])));
+
+    IndexBuffer* indexBuffer = IndexBuffer::Builder().indexCount(3).build(*engine);
+
+    indexBuffer->setBuffer(*engine,
+            IndexBuffer::BufferDescriptor(indices,
+                    indexBuffer->getIndexCount() * sizeof(uint32_t)));
+
+    filamat::MaterialBuilder::init();
+    filamat::MaterialBuilder builder;
+    builder.name("Material")
+            .material("    void material(inout MaterialInputs material) {\n"
+                      "        prepareMaterial(material);"
+                      "        material.baseColor.rgb = materialParams.baseColor;"
+                      "    }")
+            .parameter("baseColor", filament::backend::UniformType::FLOAT3)
+            .parameter("metallic", filament::backend::UniformType::FLOAT)
+            .parameter("roughness", filament::backend::UniformType::FLOAT)
+            .parameter("reflectance", filament::backend::UniformType::FLOAT)
+            .optimization(filamat::MaterialBuilder::Optimization::NONE)
+            .shading(filamat::MaterialBuilder::Shading::UNLIT)
+            .targetApi(filamat::MaterialBuilder::TargetApi::ALL)
+            .platform(filamat::MaterialBuilder::Platform::ALL);
+
+    filamat::Package package = builder.build(engine->getJobSystem());
+
+    Material* material =
+            Material::Builder().package(package.getData(), package.getSize()).build(*engine);
+    material->setDefaultParameter("baseColor", RgbType::LINEAR, float3{ 1, 0, 0 });
+    material->setDefaultParameter("metallic", 0.0f);
+    material->setDefaultParameter("roughness", 0.4f);
+    material->setDefaultParameter("reflectance", 0.5f);
+
+    MaterialInstance* materialInstance = material->createInstance();
+    Entity renderable = EntityManager::get().create();
+
+    // build a quad
+    RenderableManager::Builder(1)
+            .boundingBox({ { -1, -1, -1 }, { 1, 1, 1 } })
+            .material(0, materialInstance)
+            .geometry(0, RenderableManager::PrimitiveType::TRIANGLES, vertexBuffer, indexBuffer, 0,
+                    3)
+            .culling(false)
+            .build(*engine, renderable);
+    scene->addEntity(renderable);
+
+    int i = 0;
+    while (i++ < 1) {
+        // beginFrame() returns false if we need to skip a frame
+        if (renderer->beginFrame(swapChain)) {
+            // for each View
+            renderer->render(view);
+            renderer->endFrame();
         }
     }
-    return optind;
+    bool running = true;
-}
+    SDL_Event event;
 
-int main(int argc, char** argv) {
+    while (running) {
-    App app{};
+        while (SDL_PollEvent(&event)) {
-    app.config.title = "hellotriangle";
+            if (event.type == SDL_QUIT) {
-    app.config.featureLevel = backend::FeatureLevel::FEATURE_LEVEL_0;
+                running = false;
-    handleCommandLineArguments(argc, argv, &app);
+            }
-
+            SDL_Delay(16);        
-    auto setup = [&app](Engine* engine, View* view, Scene* scene) {
+        }
-        app.skybox = Skybox::Builder().color({0.1, 0.125, 0.25, 1.0}).build(*engine);
+    }
-        scene->setSkybox(app.skybox);
-        view->setPostProcessingEnabled(false);
-        static_assert(sizeof(Vertex) == 12, "Strange vertex size.");
-        app.vb = VertexBuffer::Builder()
-                .vertexCount(3)
-                .bufferCount(1)
-                .attribute(VertexAttribute::POSITION, 0, VertexBuffer::AttributeType::FLOAT2, 0, 12)
-                .attribute(VertexAttribute::COLOR, 0, VertexBuffer::AttributeType::UBYTE4, 8, 12)
-                .normalized(VertexAttribute::COLOR)
-                .build(*engine);
-        app.vb->setBufferAt(*engine, 0,
-                VertexBuffer::BufferDescriptor(TRIANGLE_VERTICES, 36, nullptr));
-        app.ib = IndexBuffer::Builder()
-                .indexCount(3)
-                .bufferType(IndexBuffer::IndexType::USHORT)
-                .build(*engine);
-        app.ib->setBuffer(*engine,
-                IndexBuffer::BufferDescriptor(TRIANGLE_INDICES, 6, nullptr));
-        app.mat = Material::Builder()
-                .package(RESOURCES_BAKEDCOLOR_DATA, RESOURCES_BAKEDCOLOR_SIZE)
-                .build(*engine);
-        app.renderable = EntityManager::get().create();
-        RenderableManager::Builder(1)
-                .boundingBox({{ -1, -1, -1 }, { 1, 1, 1 }})
-                .material(0, app.mat->getDefaultInstance())
-                .geometry(0, RenderableManager::PrimitiveType::TRIANGLES, app.vb, app.ib, 0, 3)
-                .culling(false)
-                .receiveShadows(false)
-                .castShadows(false)
-                .build(*engine, app.renderable);
-        scene->addEntity(app.renderable);
-        app.camera = utils::EntityManager::get().create();
-        app.cam = engine->createCamera(app.camera);
-        view->setCamera(app.cam);
-    };
-
-    auto cleanup = [&app](Engine* engine, View*, Scene*) {
-        engine->destroy(app.skybox);
-        engine->destroy(app.renderable);
-        engine->destroy(app.mat);
-        engine->destroy(app.vb);
-        engine->destroy(app.ib);
-        engine->destroyCameraComponent(app.camera);
-        utils::EntityManager::get().destroy(app.camera);
-    };
-
-    FilamentApp::get().animate([&app](Engine* engine, View* view, double now) {
-        constexpr float ZOOM = 1.5f;
-        const uint32_t w = view->getViewport().width;
-        const uint32_t h = view->getViewport().height;
-        const float aspect = (float) w / h;
-        app.cam->setProjection(Camera::Projection::ORTHO,
-            -aspect * ZOOM, aspect * ZOOM,
-            -ZOOM, ZOOM, 0, 1);
-        auto& tcm = engine->getTransformManager();
-        tcm.setTransform(tcm.getInstance(app.renderable),
-                filament::math::mat4f::rotation(now, filament::math::float3{ 0, 0, 1 }));
-    });
-
-    FilamentApp::get().run(app.config, setup, cleanup);
     
+    engine->destroy(cameraEntity);
     return 0;
 }

samples/helper.h

@@ -0,0 +1,10 @@
+#ifndef HELLO_TRIANGLE_H
+#define HELLO_TRIANGLE_H
+
+#include <SDL.h>
+#include <SDL_syswm.h>
+#include <SDL_video.h>
+
+void* getNativeWindow(SDL_Window* sdlWindow);
+
+#endif

samples/helper.mm

@@ -0,0 +1,39 @@
+#include "helper.h"
+#include <Cocoa/Cocoa.h>
+#include <QuartzCore/QuartzCore.h>
+
+#include <utils/Panic.h>
+
+void* getNativeWindow(SDL_Window* sdlWindow) {
+    SDL_SysWMinfo wmi;
+    SDL_VERSION(&wmi.version);
+    FILAMENT_CHECK_POSTCONDITION(SDL_GetWindowWMInfo(sdlWindow, &wmi))
+            << "SDL version unsupported!";
+    NSWindow* win = wmi.info.cocoa.window;
+    NSView* view = [win contentView];    
+
+    [win setColorSpace:[NSColorSpace sRGBColorSpace]];
+
+    [view setWantsLayer:YES];
+    CAMetalLayer* metalLayer = [CAMetalLayer layer];
+    metalLayer.bounds = view.bounds;
+
+    // It's important to set the drawableSize to the actual backing pixels. When rendering
+    // full-screen, we can skip the macOS compositor if the size matches the display size.
+    metalLayer.drawableSize = [view convertSizeToBacking:view.bounds.size];
+
+    // In its implementation of vkGetPhysicalDeviceSurfaceCapabilitiesKHR, MoltenVK takes into
+    // consideration both the size (in points) of the bounds, and the contentsScale of the
+    // CAMetalLayer from which the Vulkan surface was created.
+    // See also https://github.com/KhronosGroup/MoltenVK/issues/428
+    metalLayer.contentsScale = view.window.backingScaleFactor;
+
+    // This is set to NO by default, but is also important to ensure we can bypass the compositor
+    // in full-screen mode
+    // See "Direct to Display" http://metalkit.org/2017/06/30/introducing-metal-2.html.
+    metalLayer.opaque = YES;
+
+    [view setLayer:metalLayer];
+    return metalLayer;
+}
+

samples/multiple_windows.cpp

@@ -205,17 +205,11 @@ void setup_window(Window& w, Engine* engine) {
     void* nativeSwapChain = nativeWindow;
 #if defined(__APPLE__)
     void* metalLayer = nullptr;
-    if (kBackend == filament::Engine::Backend::METAL) {
+    if (kBackend == filament::Engine::Backend::METAL || kBackend == filament::Engine::Backend::VULKAN) {
         metalLayer = setUpMetalLayer(nativeWindow);
-        // The swap chain on Metal is a CAMetalLayer.
+        // The swap chain on both native Metal and MoltenVK is a CAMetalLayer.
         nativeSwapChain = metalLayer;
     }
-#if defined(FILAMENT_DRIVER_SUPPORTS_VULKAN)
-    if (kBackend == filament::Engine::Backend::VULKAN) {
-        // We request a Metal layer for rendering via MoltenVK.
-        setUpMetalLayer(nativeWindow);
-    }
-#endif
 #endif
     w.swapChain = engine->createSwapChain(nativeSwapChain);
 

shaders/src/common_getters.glsl

@@ -1,3 +1,27 @@
+//------------------------------------------------------------------------------
+// Common Helpers
+//------------------------------------------------------------------------------
+
+/**
+ * Index of the eye being rendered, starting at 0.
+ * @public-api
+ */
+int getEyeIndex() {
+#if defined(VARIANT_HAS_STEREO) && defined(FILAMENT_STEREO_INSTANCED)
+    return instance_index % CONFIG_STEREO_EYE_COUNT;
+#elif defined(VARIANT_HAS_STEREO) && defined(FILAMENT_STEREO_MULTIVIEW)
+
+#   if defined(TARGET_VULKAN_ENVIRONMENT)
+    return int(gl_ViewIndex);
+#   else
+    // gl_ViewID_OVR is of uint type, which needs an explicit conversion.
+    return int(gl_ViewID_OVR);
+#   endif // TARGET_VULKAN_ENVIRONMENT
+
+#endif
+    return 0;
+}
+
 //------------------------------------------------------------------------------
 // Uniforms access
 //------------------------------------------------------------------------------
@@ -24,20 +48,7 @@ highp mat4 getViewFromClipMatrix() {
 
 /** @public-api */
 highp mat4 getClipFromWorldMatrix() {
-#if defined(VARIANT_HAS_STEREO) && defined(FILAMENT_STEREO_INSTANCED)
+    return frameUniforms.clipFromWorldMatrix[getEyeIndex()];
-    int eye = instance_index % CONFIG_STEREO_EYE_COUNT;
-    return frameUniforms.clipFromWorldMatrix[eye];
-#elif defined(VARIANT_HAS_STEREO) && defined(FILAMENT_STEREO_MULTIVIEW)
-
-#if defined(TARGET_VULKAN_ENVIRONMENT)
-    return frameUniforms.clipFromWorldMatrix[gl_ViewIndex];
-#else
-    return frameUniforms.clipFromWorldMatrix[gl_ViewID_OVR];
-#endif // TARGET_VULKAN_ENVIRONMENT
-
-#else
-    return frameUniforms.clipFromWorldMatrix[0];
-#endif
 }
 
 /** @public-api */

shaders/src/surface_getters.vs

@@ -235,7 +235,7 @@ vec4 getCustom7() { return mesh_custom7; }
 #endif
 
 //------------------------------------------------------------------------------
-// Helpers
+// Surface Helpers
 //------------------------------------------------------------------------------
 
 /**
@@ -275,23 +275,3 @@ vec4 computeWorldPosition() {
 #error Unknown Vertex Domain
 #endif
 }
-
-/**
- * Index of the eye being rendered, starting at 0.
- * @public-api
- */
-int getEyeIndex() {
-#if defined(VARIANT_HAS_STEREO) && defined(FILAMENT_STEREO_INSTANCED)
-    return instance_index % CONFIG_STEREO_EYE_COUNT;
-#elif defined(VARIANT_HAS_STEREO) && defined(FILAMENT_STEREO_MULTIVIEW)
-
-#if defined(TARGET_VULKAN_ENVIRONMENT)
-    return int(gl_ViewIndex);
-#else
-    // gl_ViewID_OVR is of uint type, which needs an explicit conversion.
-    return int(gl_ViewID_OVR);
-#endif // TARGET_VULKAN_ENVIRONMENT
-
-#endif
-    return 0;
-}

web/filament-js/jsbindings.cpp

@@ -661,6 +661,7 @@ class_<View>("View")
     .function("getViewport", &View::getViewport)
     .function("setVisibleLayers", &View::setVisibleLayers)
     .function("setPostProcessingEnabled", &View::setPostProcessingEnabled)
+    .function("setDithering", &View::setDithering)
     .function("_setAmbientOcclusionOptions", &View::setAmbientOcclusionOptions)
     .function("_setDepthOfFieldOptions", &View::setDepthOfFieldOptions)
     .function("_setMultiSampleAntiAliasingOptions", &View::setMultiSampleAntiAliasingOptions)
@@ -1391,8 +1392,14 @@ class_<MaterialInstance>("MaterialInstance")
     .function("isDoubleSided", &MaterialInstance::isDoubleSided)
     .function("setTransparencyMode", &MaterialInstance::setTransparencyMode)
     .function("getTransparencyMode", &MaterialInstance::getTransparencyMode)
-    .function("setCullingMode", &MaterialInstance::setCullingMode)
+    .function("setCullingMode", EMBIND_LAMBDA(void,
+            (MaterialInstance* self, MaterialInstance::CullingMode mode), {
+        self->setCullingMode(mode); }), allow_raw_pointers())
+    .function("setCullingModeSeparate", EMBIND_LAMBDA(void,
+            (MaterialInstance* self, MaterialInstance::CullingMode color, MaterialInstance::CullingMode shadows), {
+        self->setCullingMode(color, shadows); }), allow_raw_pointers())
     .function("getCullingMode", &MaterialInstance::getCullingMode)
+    .function("getShadowCullingMode", &MaterialInstance::getShadowCullingMode)
     .function("setColorWrite", &MaterialInstance::setColorWrite)
     .function("isColorWriteEnabled", &MaterialInstance::isColorWriteEnabled)
     .function("setDepthWrite", &MaterialInstance::setDepthWrite)

web/filament-js/package.json

@@ -1,6 +1,6 @@
 {
   "name": "filament",
-  "version": "1.56.7",
+  "version": "1.57.0",
   "description": "Real-time physically based rendering engine",
   "main": "filament.js",
   "module": "filament.js",