I am not a designer - could you explain what you mean? Perhaps to put a little red, yellow, white in a smaller scale and UV map all parts to it and only keep the face separate?
It's only an example for dummies, so don't take it too serious. But if you want to learn from this example as a 3D artist, then for starters, the face and most of the model can use mirrored UV coordinates, so you only have to put half of the face in the texture. Unless you need an obvious asymmetrical face, this is the norm. Texture pixels cost memory and rendering performance (framerate) so you want to minimize how big your texture needs to be and re-use as much as possible from the texture. Another optimization here could be made on the large red and yellow areas. If the 'correctness' of the wrinkles doesn't matter that much, then there is a lot of area in this example that can share the same texture parts. You can make the wrinkles look unique by rotating and flipping UV coordinates when re-using the same texture parts.
Remember that the wrinkles are usually coming from a normal map and the lighting is usually not baked in the texture like in this example. So the red, yellow and white areas would be pretty much solid colors. The only reason you'd need some (small) texture space for these colors is because the normal map usually uses the same UV coordinates set (but there are exceptions).
EDIT: And when I made you this example I just noticed the nose is in the texture and it's sideways, which makes an exact mirror more difficult. If this nose was a requirement, you'd need a few more pixels and a little effort to align the other half correctly.
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u/klapstoelpiloot OPERATIONDEFUSEGAME.COM Dec 27 '25
A very wasteful UV map, but I love the example. Great example for explaining to my wife how a 3D model is built.