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What's the problem with specular lighting on bump maps? I think I see what the issue can be, specifically, that when the bump map texture is smaller than 1-1 te
by tgb 10y ago
What's the problem with specular lighting on bump maps? I think I see what the issue can be, specifically, that when the bump map texture is smaller than 1-1 texels-to-pixels, then the normal chosen will 'shimmer' between the possible texel values. But can't one use mipmaps for bump maps as well to reduce this?
- Ono-Sendai 10y agoI think the problem with mimmapping bump maps is that it effectively smooths the surface, so you loose the bump effect.
- tgb 10y agoCan't the same be said for mipmapping textures? Losing detail at low LOD is expected, though I can't picture if bump maps lose 'more' perceptually.