Curvature map

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A curvature map is a texture that stores the convexity/concavity of the mesh. Also called Concavity, Convexity, Pits & Peaks, Worn Edge.

A Cavity map is different, it stores ambient occlusion which is limited to small crevices only.

Curvature can be used to mask where the surface would get more wear or where sub-surface scattering might occur (convex), where it might accumulate more dirt (concave), to check for surface continuity, etc.

Concavity (green) & convexity (red), made with rebb's r7_vertCurvature.py. Image by 'rebb'.

3ds Max


Concavity (red) & convexity (green), made with Grant Adam's Tension Modifier. Image by Grant Adam.


Lightwave


Maya


Others


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