Blender Git Commits

Eevee: Replace ESM and VSM by PCF shadow mapping

PCF shadowmaps are less prone to light leaking and are faster to
render.

This remove a substantial part of the shadowing code.

Eevee: SSS: Refactor translucency

This separate the translucency evaluation to be outside of surface eval.

This as the benefit to reduce code complexity and remove the need for
shadow map (non-test) sampler in the shading pass.

One big change is that bsdf intensity is multiplied and stored with the
albedo color instead of the sss irradiance. This is in order to apply it
to both the translucency and the sss diffusion. This change the look of
mixed SSS shaders which is now closer to cycles.

Performance cost is negligeable.

# Conflicts:
# source/blender/gpu/shaders/gpu_shader_material.glsl

Eevee: SSS: Refactor to use less memory and always use separate albedo

This refactor reduce the Memory overhead of SSS and enables us to always
use separate albedo. Previously we used 128bits/px for SSS data and
32bits/px for albedo. Now we use 112bits/px for SSS data & separate albedo
altogether.

This refactor is needed for PCF shadow maps.

# Conflicts:
# source/blender/gpu/shaders/gpu_shader_material.glsl

GPUFramebuffer: Bump max color attachement to 6