* 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>
* slice: fix memory semantics
* slice: prefer passing slice by value
This lets us do nice things like coercing Slice<T> to Slice<const T>, etc.
* slice: fix unit tests
* slice: fix copy/assignment, hash function
Don't attempt to define a copy constructor/assignment operator which would
convert a constant type to a mutable type.
Additionally, fix the hash function such that we're hashing U instead of const
U.
FilamentApp now has debugging options to enable or disable the
camera and directional shadow frustums, as well as the new
"froxel grid" visualization.
"froxel grid" is automatically enabled when "froxel debugging" is
enabled in the debug gui in gltf_viewer.
New corresponding debugging APIs were added to View.
- Add a Configuration struct to the WebGPUPlatform class. This
allows for client-side setting of WebGPU backend configurations.
- Add a configuration for forcing the wgpu backend to pick a
certain backend.
- Add Vulkan as a potential backend for WebGPU + MacOS.
- Locally modify Dawn so that it does not assume only switfshader
is available for Vulkan on MacOS.
- Enable vulkan support for Dawn (third_party/dawn/tnt/CMakeLists.txt)
- Plumb option to pick different WebGPU backend through
FilamentApp and gltf_viewer.
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.
- Both Scene and IBL are holding on to a skybox reference. We
need to make sure the order they are destroyed in right order.
- Reloading IBL should trigger resetting the indrect light in
gltf_viewer.
vk, metal and desktop gl all support depth clamp, GLES/android also does
with ANGLE. Add support for it in the backends.
use depth clamp to improve directional shadow quality; this allows
to render everything that's behind the camera at the same "zero" depth,
so we can reduce the depth range we need.
Fixes#6293
vk, metal and desktop gl all support depth clamp, GLES/android also does
with ANGLE. Add support for it in the backends.
use depth clamp to improve directional shadow quality; this allows
to render everything that's behind the camera at the same "zero" depth,
so we can reduce the depth range we need.
Fixes#6293
shadow cascades where not calculated properly because part of the
calculation took the cascade near/far into account, while another
part didn't. This resulted in cascades being too large. It didn't
create wrong shadows, but reduced (and in some case canceled) the
usefulness of the cascade.
We fix the problem by always using the projection matrix only for
describing the cascade's frustum, as opposed to just passing the
near/far plane distances.
Now the calculation of each cascade is completely self contained and
identical.
We also improve the orientation of the light frustum:
We can rotate the light frustum around the light direction axis, so
it aligns with the view direction, this generally result in smaller
light frustums. This cannot be used in stable mode.
When a user drags and drops a gltf file to the gltf_viewer window, it
loads the new asset.
While this happens, the function `checkAsset` tries parsing the gltf
file, but it doesn't free it. Fix this.
- Add option to build.sh to build for paritcular stereo
techniques (default to NONE). Only applies to samples.
- Consoldiate viewer checkbox for debugging stereo rendering
- Add DriverConfig flag for stereoscopic type so that it can
be used to determine availability of the feature and
(to be completed) enable corresponding GPU features.
Co-authored-by: Mathias Agopian <mathias@google.com>
Plumb through multiview configurations to the pipeline so that the
engine draws scenes using multiview extension. Users need to prepare
shaders compiled with the `multiview` param and set the
`stereoscopicType` flag to MULTIVIEW in the Engine::Config to enable
multiview feature.
In this change, postprocessings for multiview are not yet supported. So
we all disable them until they're supported.
The debug option `combineMultiviewImages` combines layers as one image,
which allows us to check the final result.
we recently added calls to Material::compile in gltfio to precompile
materials are they are discovered. that wasn't a good call, because
this should be the responsibility of the app, not of gltfio, at least
not without an option.
This is now done in gltf_viewer. We need something similar for
Android.
Bugs #7318, #7336
Drag and dropping a gltf folder was broken:
- the handle didn't find the gltf file on drag&drop
- the ResourceLoader cached the asset path
- don't exit(1) when drag&dropping an invalid file
* debugging PCF mode
This mode always uses a hard PCF and takes a
slightly slower code path.
* dynamic shadowmap visualization
The directional shadowmap visualizer is implemented behind a
specialization constant. Add the DebugRegistry infrastructure to be
able to update the spec-constant at runtime and have a subset of
all materials invalidated.
This allows to toggle the visualization at runtime using a debug
property.
This is also a proof of concept that we can update spec-constants
at runtime; we could probably leverage this work for engine-wide
shader configurations.
* Update main.fs
* Update filament/src/details/Material.cpp
Co-authored-by: Powei Feng <powei@google.com>
---------
Co-authored-by: Powei Feng <powei@google.com>
- shadows are now stable (in stable mode) when an IBL rotation is
used.
- fix the shadow transform option which didn't work when an IBL rotation
was used
- also use the x-axis as a reference for the "up" direction when
computing the light space matrix so that we don't fall into the
degenerate case when the light points straight down, which is a
common case
FIXES=[299310624]
Functionally this shouldn't be too different, but we have some
improvements:
- better detection of "no shadows" cases
- more computations done in light-space, which should result in
better light frustum.
- spit the code into several static functions
- use the geometric normal to apply the shadow bias. This affects
cascades > 0 and spot/point lights.
- use the scene's origin as a reference point for stabilizing the
shadowmap, this is more robust.
- clamp directional shadowmap correctly to the 1-texel border, which
needs to be reachable, as it is a valid value.
- don't snap the shadowmap to texel boundaries if stable mode is not
active (before we only didn't do it based on lispsm). Stable mode can
make the shadow unstable when both the camera and the scene move
together, so it's better to have a more predictable API where
"stable" mode means that the snapping occurs and doesn't otherwise.
- add "far origin" distance slider to the debug ui
FIXES=[299310624]
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.
This works by making the fog an entity which can be used to create
a TransformManager component an participate to the transform hierarchy.
This feature can be used as more advanced way to set the fog's floor,
which now can have an orientation (essentially be a plane).
This is useful for coordinate systems that are not y-up.
This is because most android devices only support 16 texture in the
shaders (94.4%), so we can't realistically have feature level 2 demand
that.
Instead feature level 2 enables compute/ES3.1 features.
- fix View::setVisibleLayers to match code. By default only layer 0
is active, despite the documentation stating otherwise.
- add a helper to enable/disable layers more easily
- don't use layer 0,1,2 for the overdraw function as they were used by
FilamentApp in "multi view" mode.
