to emulate the bindless API in the gl backend we always used the highest
texture unit available. However at feature level 3, we support up to 62
textures, so the that max was bumped to 62 -- however, where we're not
on a feature level 2 device, that texture unit doesn't exist.
Instead we now always use binding 31, which is guaranteed to exist by
EGL's minspec.
* minimal backend support for compute
- added api to dispatch a compute shader
- added api to create and bind a ssbo
- added api to read back a buffer
Only implemented in the gl backend
* Add a backend compute test suite
* basic support for compute shaders in matc
this is still very much work-in-progress.
We're not supporting images nor ssbo for now.
* rename UniformInterfaceBlock to BufferInterfaceBlock
* augment BufferInterfaceBlock to support ssbo features
- add support for std430
- add support for ssbo
- add support for variable-size array
- add support for memory qualifiers
* reformat MaterialBuilder
* material format: move subpasses outside of parameters
subpasses now are their own json property instead of being a
"parameter".
* refactor parameter() methods to match Buffer/SamplerInterfaceBlock
We're just shuffling the arguments.
* add support for buffers in .mat files
* filamat now generates buffer blocks (ssbo)
* take feature level into consideration when optimizing shaders
* don't store the 'uniform binding' chunk for level 2 materials
this includes some refactoring/cleanups of MaterialParser
* matinfo: fixes for compute
- separate subpasses from parameters
- don't attempt to print material properties
it is not true that the whole box is inside the frustum if we have
8 vertices and some frustum vertices are in the box -- that's even
non-sensical.
We now test for this case by checking that we have all (8) vertices of
the box inside the frustum.
This caused some shadows to be missing.
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.
This is a feature request from Google. It allows users to "preload" an
asset, ie you can now create all VertexBuffer objects, Texture objects,
etc, without actually creating any entities or renderable components.
In the past we used TransformManager to help out with computing the big
asset-level bounding box, but now we use `gltf_node_transform_world()`
because entities might not yet exist.
One minor side effect is that `FilamentAsset::getBoundingBox()` now
returns the AABB that was determined at load time, and does not account
for instances. As a result, our `gltf_instances` sample app looks
slightly different but this is expected.
In VulkanPipelineCache, `getShaderStageFlags()` and `getUsageFlags()`
are used to track which samplers are used in the VERTEX stage and which
are used in the FRAGMENT stage. The recent change I made was incorrect
because it did not account for samplers that are used in BOTH stages.
This fixes the recent regression where we see validation errors when
running `gltf_viewer` in ubershader mode.
Some (poorly authored) glTF assets have several `image` elements
that all refer to the same URL or buffer view. When this occurs,
we create only 1 Filament Texture.
These assets regressed after PR 6051, which consolidated the texture
related fields in `FilamentAsset`, but did not include an ownership flag
in the new `TextureInfo` struct.
- 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.
- improve scissor documentation, specify coordinate system and
clipping behavior
- scissor now takes the guard bands into account
- on the backend side the scissor is no longer clipped to the viewport
- clipping to the viewport is now done on the filament side
- don't set scissor when material instance doesn't specify one
(common case)
Benjamin Doherty
daemyung jang
Mathias Agopian
Philip Rideout
Joel Winarske
Thomas Gorisse
Romain Guy