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-rw-r--r--shaders/cook_torrance.frag2
1 files changed, 2 insertions, 0 deletions
diff --git a/shaders/cook_torrance.frag b/shaders/cook_torrance.frag
index 74a89e2..9ff5a8d 100644
--- a/shaders/cook_torrance.frag
+++ b/shaders/cook_torrance.frag
@@ -1,5 +1,7 @@
1/* 1/*
2[1] BRDF reference: https://graphicrants.blogspot.com/2013/08/specular-brdf-reference.html 2[1] BRDF reference: https://graphicrants.blogspot.com/2013/08/specular-brdf-reference.html
3[2] glTF reference implementation: https://github.com/KhronosGroup/glTF-Sample-Renderer/blob/main/source/Renderer/shaders/brdf.glsl
4[3] Learn OpenGL reference: https://learnopengl.com/PBR/Theory (see other chapters also for IBL)
3*/ 5*/
4precision highp float; 6precision highp float;
5 7