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Review BRDF texture generation

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Actually, that function should be redesigned...
This commit is contained in:
raysan5
2019-01-06 15:49:29 +01:00
parent 5c614f6975
commit f4fe7f4d4c
2 changed files with 38 additions and 42 deletions
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7
src/rlgl.h
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@@ -3221,6 +3221,7 @@ Texture2D GenTexturePrefilter(Shader shader, Texture2D cubemap, int size)
// Generate BRDF texture using cubemap data
// NOTE: OpenGL ES 2.0 does not support GL_RGB16F texture format, neither GL_DEPTH_COMPONENT24
// TODO: Review implementation: https://github.com/HectorMF/BRDFGenerator
Texture2D GenTextureBRDF(Shader shader, int size)
{
Texture2D brdf = { 0 };
@@ -3229,9 +3230,9 @@ Texture2D GenTextureBRDF(Shader shader, int size)
glGenTextures(1, &brdf.id);
glBindTexture(GL_TEXTURE_2D, brdf.id);
#if defined(GRAPHICS_API_OPENGL_33)
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB32F, size, size, 0, GL_RG, GL_FLOAT, NULL);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB32F, size, size, 0, GL_RGB, GL_FLOAT, NULL);
#elif defined(GRAPHICS_API_OPENGL_ES2)
if (texFloatSupported) glTexImage2D(GL_TEXTURE_2D, 0, GL_RG, size, size, 0, GL_RG, GL_FLOAT, NULL);
if (texFloatSupported) glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, size, size, 0, GL_RGB, GL_FLOAT, NULL);
#endif
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
@@ -3269,6 +3270,8 @@ Texture2D GenTextureBRDF(Shader shader, int size)
brdf.width = size;
brdf.height = size;
brdf.mipmaps = 1;
brdf.format = UNCOMPRESSED_R32G32B32;
#endif
return brdf;
}