The VSM variant bit was overloaded, it meant two different things
depending on the DEP bit (depth).
For standard variants (DEP = 0), it decides the type of the shadow
sampler used (PCF or 2D).
For depth variants (DEP = 1), it decides what is written during the
shadow pass (nothing, i.e. depth only, or EVSM depth moments).
We now clearly separate the two bits throughout the code.
This change should be purely source-cosmetic, there shouldn't be any
behavior changes.
Co-authored-by: Powei Feng <powei@google.com>
The VSM variant is never needed for unlit materials, it was filtered
out correctly for color shaders but not for the depth shaders.
This removes 4 variants from all unlit materials.
Also improve matinfo variants output.
* 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
Mathias AgopianandPowei Feng
Ben Doherty
Philip Rideout