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by lawlessone 976 days ago
what are the 3d and 4d textures?
2 comments

(I could be wrong, but here's what I'm guessing) 3D refers to RGB, and 4D refers to RGB plus Alpha
Usually something like volumetric data, animations, or other forms of data packed into something the GPU can swallow. I am not sure why you would apply the filters to those kinds.