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The Bump terms simulates 3d effect using a texture to offset

pixels while rendering.


Scale                :   Scale of the bump effect

Texture        :   A normal map will be computed out of the texture with black areas flat and white with maximum bump effect applied.



Channel        : the texture channel , current version implements only the TEX0 channel

Offset u,v        : texture offset in U and V direction in normalized units

Scale u,v        : texture scaling

Rotation        : rotation of the texture image around up W axis