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In Lambertion::scatter there is a comment about attenuating light based on distance. For a raytracer this is not required as the distribution of rays themselves cause attenuation over distance.


Correct, the missing curvy section in the green-cyan-blue area represents where the red component would have to go negative to express those colors in CIE RGB coordinates. RGB and XYZ are, at one level, just different coordinate systems covering the same color spaceā€”the space of all colors visible to typical human vision. In a mathematical sense, when used ...


The original CIE RGB colors included luminance within the actual encoding, and the original basis colors chosen for CIE RGB were chosen because they were easy to reproduce at that time. This made it much easier and more accurate when doing color experiments that required people to classify colors when producing those colors with real physical equipment. But, ...

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