UV Coordinate Shader (mental ray)

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Material Editor > Any shader with a Coords parameter or other vector value. > Click the shader button. > Material/Map Browser > UV Coordinate (3dsmax)

Note: Shaders appear in the Browser only if the mental ray renderer is the currently active renderer.

This shader is identical to the UV Generator shader, except that it returns two values instead of one.

The UV coordinate (same value as UV Generator would return)

This value is named UV.
The UV coordinate's derivative

This value, also a vector, is named dUV.

When you choose this shader, a Connect Parameter To Shader dialog is displayed, prompting you to choose which of the two values to use. You can later change the choice of value by using the “dot” button to the right of the main shader button.

Interface

The UV Coordinate shader has the same parameters as the UV Generator shader. See UV Generator Parameters Rollout for a description of the basic settings.