>>5820390Those rules on temperature are confusing as hell. Outside, on a sunny day, the sun is mostly a warm light, while the blue of the sky is a cool light. The blue sky will shine on the shadows. But if you look at a tree, its cast shadow will be lighter/bluer as it is more exposed to the sky, and warmer/browner/darker as that source of blue light is getting rare (=> under the tree).
On typical old school portraits, the light used was north light, and the inside were filled with woods, so there was a temperature difference cold light/warm shadows.
There's also the fact that to darken a color (adjusting the value), you often need to keep adjusting the saturation (opposite color) so as to keep the hue stable. And like, saturation adjustment through opposite color is basically a warm/cool adjustment.
And the fact that our eyes are pretty sensitive to mis-temperature management: muddy/chalky colors are (always?) caused by improper temperature relationships.
So warm light/cool shadows and cool light/warm shadows is to be taken with a grain of salt, thus
>>5820479,
>>5820497. And that's without taking into consideration all the special cases (reflectivity, transparency) as stated by
>>5820551.
Thus, think how how the light bounces around, and how that bouncing can alter local temperature; look for muddiness and how to balance temperature to help remove that muddiness, rather than thinking in terms of those too simplified rules.
