* Add a Renderer API to force skipping frames
Renderer::skipNextFrames(size_t) can be used to force filament to
pretend the next N frames must be skipped. This is mostly useful for
debugging.
* Add DebugOptions to Settings
We still need to move the "Debug" features of gltf_viewer to this,
but this give us a framework to do it.
Currently there is one debug option that allows to set a number of
frames to skip.
ViewerGui propose a button to skip 10 frames using this framework
* Update libs/viewer/src/Settings.cpp
Co-authored-by: Powei Feng <powei@google.com>
* Update libs/viewer/src/Settings.cpp
Co-authored-by: Powei Feng <powei@google.com>
---------
Co-authored-by: Powei Feng <powei@google.com>
PPM does not store alpha channel, but TIFF does. We add a method
to export RGBA to a TIFF file without compression.
We add the corresponding options to gltf_viewer and
AutomationEngine.
The default export format for both gltf_viewer and AutomationEngine
is now TIFF.
this is implemented by here by using the skybox texture and blurring it
with the irradiance filter + mipmapping. This only creates a subtle
anisotropic phase-function effect.
* Fix warning C4146: unary minus operator applied to unsigned type, result still unsigned
* Fix warning C4068: unknown pragma 'nounroll'
* Fix warning C4068: unknown pragma 'unroll'
* Fix warning C4068: unknown pragma 'clang'
* Fix warning C4305: 'initializing': truncation from 'double' to 'float'
* Fix warning C4267: 'argument': conversion from 'size_t' to 'utils::FixedCapacityVector<filament::uberz::WritableArchive::Material,std::allocator<T>,true>::size_type', possible loss of data
* Fix warning C4267: 'argument': conversion from 'size_t' to 'uint32_t', possible loss of data
* Fix warning C4244: 'initializing': conversion from 'A' to 'T', possible loss of data
* Fix warning C4334: '<<': result of 32-bit shift implicitly converted to 64 bits (was 64-bit shift intended?)
* Fix warning C4293: '>>': shift count negative or too big, undefined behavior
* Fix diagnostic warning C4189: 'channels': local variable is initialized but not referenced
* Use [[maybe_unused]] where possible and revert aa79bd6fa8.
* Revert unary minus for non-MSVC compilers
* Add macro for enabling warnings temporarily
* Get rid of UTILS_HAS_CXX17
* Revisit warning related macros
Co-authored-by: Levente Koncz <levente.koncz@shapr3d.com>
auto-instancing can have some overhead, so when it is known that the
scene doesn't have identical primitives, it is better to disable it.
(disabled by default).
Also add some missing bindings for `enableAccurateTranslations`.
* Add multi-scene support to gltf_viewer.
To test this, I generated a multi-scene asset as follows.
```
gltf-transform merge Avocado/glTF/Avocado.gltf \
BarramundiFish/glTF/BarramundiFish.gltf \
~/Desktop/Merged.gltf
```
* Specify c++17 in pbxproj files.
When the guard band is enabled, the effective rendering area is
increased by a certain amount (currently 16 pixels on each side) so
that screen-space effects (e.g. SSAO, SSR, DoF) behave better around
the edges of the screen. Of course, this comes at a performance and
memory cost.
Currently the guard band is not configurable other than being optional.
Added c++, java and js bindings.
- For completion, FilamentAsset now has getRenderableEntities(). This is
similar to sister methods getLightEntities() and getCameraEntities()
except there is no need to store a separate array.
- The web helmet demo does not need to enable shadows, they are already
enabled.
- The ViewerGui populateAsset() method was doing two things that are
now decoupled for clarity: setAsset() and populateAsset().
- The updateRootTransform() method is now called only when the autoscale
checkbox is toggled, instead of every frame.
- The getFooEntities() methods in Java now skip doing work for empty
lists. Actually these should not return arrays at all, but let's fix
that later, since it will break backwards compatibility.
The SimpleViewer C++ class was not viewer component like `ModelViewer`
and `<filament-viewer>`. It was actually just the UI builder used
in the `gltf_viewer` desktop app and the remote Android interface.
This allows clients to provide their own asynchronous texture decoders
for various mime-typed images. This is a plug-in component for gltfio,
in some ways similar to MaterialProvider.
There are two motivations for this: to decouple gltfio from STB and
to make it easier to integrate support for BasisU textures.
This also has the side effect of simplifying ResourceLoader, since the
texture decoding jobs have been moved out.
As part of this work, I made the "stb" CMake target into a traditional
static library. Previously we had several files called `Image.cpp`
whose sole purpose was to enable STB_IMAGE_IMPLEMENTATION.
* Replace generic tonemap curve with a simpler one
This change removes the shoulder parameter which had inconsistent
behaviors. The new curve is simpler and designed to still match
by default the gray point and the contrast of ACES in a bright
surround.
* Fix build
In low-light conditions, peak luminance sensitivity of the eye shifts
toward the blue end of the visible spectrum. This effect called the
Purkinje effect occurs during the transition from photopic (cone-based)
vision to scotopic (rod-based) vision. Because the rods and cones use the
same neural pathways, a color shift is introduced as the rods take over to
improve low-light perception.
This function aims to (somewhat) replicate this color shift and peak
luminance sensitivity increase to more faithfully reproduce scenes in
low-light conditions as they would be perceived by a human observer
(as opposed to an artificial observer such as a camera sensor).
The night adaptation can be controlled using a 0..1 factor for artistic
reasons: `ColorGrading::Builder::nightAdaptation()`.
* Use wide gamut color grading and gamut mapping
This change introduces a new API on ColorGrading to enable or disable gamut mapping at will. This feature is currently off by default and while useful and recommended, it isn't cheap and we need to figure out what we want our defaults to be especially on mobile targets.
Gamut mapping can be combined with luminance scaling to properly control hue skews.
* Small cleanup
* More precise Rec.2020 conversion
The new default values match almost exactly the filmic tone mapper which
is itself a close approximation of ACES. This result in a slightly more
contrasty and pleasing image out of the box.
* WIP New tone mapper API
* Implement tone mapper constructors and destructors
* Add new genertic tone mapper
* Make the generic tone mapper available in our sample UIs
* Fix warnings and crashes
* Fix generic tone mapper and graph mappers in the UI
* Add Java APIs for ToneMapper
* Implement copy/move operators for GenericToneMapper
* Generalize luminance scaling in color grading
Previously the luminance scaling step was tied to a specific tone
mapping operator, called "EVILS" in the API. This was however
somewhat misleading as EVILS really is a color handling system
that's independent of what we call tone mapping.
This change splits the luminance scaling step from the tone mapping
step, allowing the use of luminance scaling (the LICH part of EVILS)
with any tone mapping operator.
As a result, the operator known as EVILS is currently mapped to the
linear operator and renamed to "RESERVED" until it is replaced by
a proper — configurable — operator.
* Update release notes
* Fix web build
* Add new sample app: image_viewer
This app shows how to load and visualize images. It's also useful to work
on color grading and other post-processing effects by just loading an HDR
or EXR image as a reference.
This change also adds a new exposure setting to the color grading LUT.
* Fix comments and build
* Fix Metal
* Use high precision for the UV coordinates
* Fix refactoring issue
The focal length slider now works over a remote connection. Also, the
slider for focus distance now controls the value in `ViewerSettings`
(which gets applied to Camera) rather than the value in
`DepthOfFieldOptions` (which is deprecated).
* move the focus distance from DofOptions to Camera
The DofOption parameter is now deprecated, but will still work if the
focus distance is not set on Camera.
* A few new helper APIs on Camera
- getFocalLength() which returns the focal length used internally for
DoF computations.
- computeEffectiveFov() and computeEffectiveFocalLength() which can be
used to better simulate a real camera's FOV changes with the
focus distance.
Modified gltf_viewer so it uses the effective fov/focallendth when
DoF is active.
* simplify setLensProjection
We can call setProjection directly instead of converting to a fov
first, which ends up performing atan(tan(x)).
Also improve parameters names.
