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# Distortions

 Displacement in r Displacement in θ Defined on radial plane Defined on Archimedean scroll

Example renderings of the four combinations of displacement in the $r$ versus $\theta$ directions, and placing the input texture on the radial plane versus on the Archimedean spiral. The rendered cut is tangential on the left side and near-radial on the right side. Figure is exaggerated and other features are simplified for exposition.

## Rendering settings

An orthographic camera views the wood from directly above. A point light orbits the center of the wood at a constant 60 degrees away from normal.