You've already forked godot
mirror of
https://github.com/godotengine/godot.git
synced 2026-01-06 19:41:11 +00:00
When given roughness is lower than 0.01, d value in original code will be zero. This can make last return value as NAN because of divide-by-zero. This is well addressed in issue #56373. Modified code is referenced on D_GGX function of google/filament (https://github.com/google/filament/blob/main/shaders/src/brdf.fs#L54-L79) Signed-off-by: snowapril <sinjihng@gmail.com>