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by Budabellly
1949 days ago
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I would say that modeling teeth with geometry is very easy. The material, lighting, and rendering is the challenge, especially when you consider all of the occlusion (and hard/soft body dynamics) from your lips that is inevitable with teeth. Some form of subsurface scattering[1] is a must, and not easily done in games/apps because you can't really "bake" it like you do for most other textures to run performantly. [1] https://en.wikipedia.org/wiki/Subsurface_scattering#:~:text=.... |
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Subsurface scattering is the correct answer. It's a very small area and a very expensive calculation.
Teeth are translucent and the coloured lighting on them changes rapidly.