Blender Git Commit Log

Git Commits -> Revision 83ac862

Revision 83ac862 by Clément Foucault (master)
February 13, 2021, 17:52 (GMT)
EEVEE: Update LUT GGX generation shader

This modifies the principled BSDF and the Glass BSDF which now
have better fit to multiscatter GGX.

Code to generate the LUT have been updated and can run at runtime.

The refraction LUT has been changed to have the critical angle always
centered around one pixel so that interpolation can be mitigated.

Offline LUT data will be updated in another commit

This simplify the BTDF retreival removing the manual clean cut at
low roughness. This maximize the precision of the LUT by scalling
the sides by the critical angle.
I also touched the ior > 1.0 approximation to be smoother.

Also incluse some cleanup of bsdf_sampling.glsl

Commit Details:

Full Hash: 83ac8628c490eda4fa5237b7a4256bc670dc0682
Parent Commit: 06492fd
Lines Changed: +303, -282

15 Modified Paths:

/source/blender/draw/CMakeLists.txt (+1, -0) (Diff)
/source/blender/draw/engines/eevee/eevee_lut_gen.c (+70, -118) (Diff)
/source/blender/draw/engines/eevee/eevee_materials.c (+17, -4) (Diff)
/source/blender/draw/engines/eevee/eevee_private.h (+4, -0) (Diff)
/source/blender/draw/engines/eevee/eevee_shaders.c (+2, -5) (Diff)
/source/blender/draw/engines/eevee/shaders/bsdf_lut_frag.glsl (+42, -33) (Diff)
/source/blender/draw/engines/eevee/shaders/bsdf_sampling_lib.glsl (+9, -32) (Diff)
/source/blender/draw/engines/eevee/shaders/btdf_lut_frag.glsl (+64, -37) (Diff)
/source/blender/draw/engines/eevee/shaders/closure_eval_glossy_lib.glsl (+1, -1) (Diff)
/source/blender/draw/engines/eevee/shaders/common_utiltex_lib.glsl (+59, -35) (Diff)
/source/blender/draw/engines/eevee/shaders/lightprobe_filter_diffuse_frag.glsl (+4, -1) (Diff)
/source/blender/draw/engines/eevee/shaders/lightprobe_filter_glossy_frag.glsl (+4, -5) (Diff)
/source/blender/draw/engines/eevee/shaders/lightprobe_filter_visibility_frag.glsl (+4, -1) (Diff)
/source/blender/gpu/shaders/material/gpu_shader_material_glass.glsl (+15, -6) (Diff)
/source/blender/gpu/shaders/material/gpu_shader_material_principled.glsl (+7, -4) (Diff)
By: Miika HämäläinenLast update: Nov-07-2014 14:18MiikaHweb | 2003-2021