* Update SPIRV libraries
- Update `spirv-cross`
- Update `spirv-tools`
- Update `glslang`
`spirv-tools` contains a fix for an issue we reported (unnecessary promotions to highp in certain expressions).
* Add SPIRV-Tools dependency to matinfo
We recently changed the default constructor of vector to not initialize the vector to 0. This caused subtle issues in cmgen which was creating arrays of vectors. This change simply forces 0 initialization of those arrays.
fix#87
We just skip samples that have a dot(N,L)<0 which
means we’re “loosing” some samples. However,
this happens higher levels of the mipmap chain,
and since we’re increasing significantly the
number of samples as the level increases, this
doesn’t end-up being a problem.
* Add new Cloth NDF
Based on the work by Estevez and Kulla, also known as the "Charlie" sheen.
* Restore DFG computation to GGX
* New proposed approximation for Cloth DFG
* Add "Charlie" cloth DFG approximation to cmgen
* Switch to "Charlie" sheen for cloth shading
* Document the new cloth NDF and DFG approximation
* Fix post-process shader when not in Vulkan
The post-process shader must not flip the source texture when we compile for OpenGL. This happens because we use SPIR-V/Vulkan as an intermediate format.
* Fix the Android build
We need to output a location when targeting SPIR-V for mobile.
