Lut, Shader, Programming, Blender3d, Unreal Engine.
= Floor(InColor.B * (LUT_Dimension - 1)) /LUT_Dimension What we want to do now, is to also read the value of the Blue, in the slice above the one we are reading and interpolate between them. Imagine you have 4x4x4 LUT. You have a blue value of 0.125. In our current system, we read the LUT value for