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I think another benefit of using normal maps that no one is mentioning is that you get significantly less aliasing due to mipmapping and interpolation in the fr

I think another benefit of using normal maps that no one is mentioning is that you get significantly less aliasing due to mipmapping and interpolation in the fragment shader. You can model all the same detail into the mesh, but it will often still look worse than the normal map approach. So I don’t think it’s necessarily a purely performance-oriented decision.

wlesieutre 4y ago
Normal mapping is cool but parallax occlusion mapping is some real wizardry: https://en.wikipedia.org/wiki/Parallax_occlusion_mapping https://en.wikipedia.org/wiki/Parallax_occlusion_mapping https://www.youtube.com/watch?v=0k5IatsFXHk https://www.youtube.com/watch?v=0k5IatsFXHk You'd have a bad time including all of that in the actual model.