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Now that we have a scene we need a 3DLUT. The simplest 3DLUT is a 2x2x2 identity LUT where *identity* means nothing happens. It's like multiplying by 1 or doing nothign, even though we're looking up colors in the LUT each color in maps to the same color out.
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Now that we have a scene we need a 3DLUT. The simplest 3DLUT is a 2x2x2 identity LUT where *identity* means nothing happens. It's like multiplying by 1 or doing nothign, even though we're looking up colors in the LUT each color in maps to the same color out.
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WebGL1 doesn't support 3D textures so we'll use 4x2 2D texture and treat it as a 3D texture inside a custom shader where each slice of the cube is spread out horizontally across the texture.
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WebGL1 doesn't support 3D textures so we'll use 4x2 2D texture and treat it as a 3D texture inside a custom shader where each slice of the cube is spread out horizontally across the texture.
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