-Make the AO and SO path clean since we're forward based (no more double occlusion and occlusion on emissive).
-Configurable per-lobe specular occlusion on environment lights and debug options. Also use GTAOMultiBounce tint in the context of vertical layering.
(Enabling SO is orthogonal to bentnormals presence, the choosen algo for the data-based occlusion will use the normal or bentnormal if present)
-Bentnormal map which piggy backs on all normal map parameters (add UI code to allow this too)
-Fix GGX energy compensation term application
-Reuse some Lit shader_feature keywords
-Full SPTD code in /SphericalCapPivot, with documentation and tweaks to reference glsl code:
-Methods are in worldspace
-ComputeVS should not be multiplied by FGD (see comments)
-Stability issue with pivot transforming extreme cases of spherical caps
-Specular occlusion with cone-cone method: further options and tweaks to the original method.
-Refactoring of common orthogonal basis aligned with reflection plane (view-normal)
Stephane Laroche
Antoine Lelievre
GitHub
Sebastien Lagarde