Mental Ray Shaders (XSISDK)

A Mental Ray shader is defined with a SPDL, a Preset file (which is generated from the SPDL), and a .DLL (or .SO). XSI uses the SPDL file to get information about the type of the shader, and its parameters and is able to build a Property Page and a Render Tree node for the shader based on this information. Mental Ray will call the Shader DLL during the rendering process.


Be sure to read: mental ray Shaders (

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