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Add support for screen-space contact shadows (#2245)

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* Add support for screen-space contact shadows

This CL adds support and always enables it.
toggles and setting in the next CL (same PR).

* Plumb settings for screen-space contact shadows

screen-space contact shadows is handled like a shadow option,
parameters (including on/off) are set in the LightManager, using
the existing ShadowOptions API.

Additionally there is a per-renderable toggle.

Both toggles are off by default.

* Allow contact shadows when shadowing is auto-disabled


Shadowing can be auto-disabled when for instance there are no
shadow casters in the scene. We still allow contact shadows in
that case.

This would allow for instance, to make the vegetation on a terrain
not shadow-casting, and still get some shadowing there by using
contact shadows instead.

* apply micro-shadowing after contact shadows

also, don't compute contact shadows when we know we're fully shadowed.
This commit is contained in:
Mathias Agopian
2020-03-16 22:39:24 -07:00
committed by GitHub
parent 6cf3e86c8a
commit d54ceff7a3
25 changed files with 288 additions and 33 deletions
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14
android/filament-android/src/main/cpp/RenderableManager.cpp
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@@ -164,6 +164,13 @@ Java_com_google_android_filament_RenderableManager_nBuilderReceiveShadows(JNIEnv
builder->receiveShadows(enabled);
}
extern "C" JNIEXPORT void JNICALL
Java_com_google_android_filament_RenderableManager_nBuilderScreenSpaceContactShadows(JNIEnv*, jclass,
jlong nativeBuilder, jboolean enabled) {
RenderableManager::Builder *builder = (RenderableManager::Builder *) nativeBuilder;
builder->screenSpaceContactShadows(enabled);
}
extern "C" JNIEXPORT void JNICALL
Java_com_google_android_filament_RenderableManager_nBuilderSkinning(JNIEnv*, jclass,
jlong nativeBuilder, jint boneCount) {
@@ -275,6 +282,13 @@ Java_com_google_android_filament_RenderableManager_nSetReceiveShadows(JNIEnv*, j
rm->setReceiveShadows((RenderableManager::Instance) i, enabled);
}
extern "C" JNIEXPORT void JNICALL
Java_com_google_android_filament_RenderableManager_nSetScreenSpaceContactShadows(JNIEnv*, jclass,
jlong nativeRenderableManager, jint i, jboolean enabled) {
RenderableManager *rm = (RenderableManager *) nativeRenderableManager;
rm->setScreenSpaceContactShadows((RenderableManager::Instance) i, enabled);
}
extern "C" JNIEXPORT jboolean JNICALL
Java_com_google_android_filament_RenderableManager_nIsShadowCaster(JNIEnv*, jclass,
jlong nativeRenderableManager, jint i) {