The V-Ray Mtl OSL material can be used to load OSL shader code files (.osl) or OSL object code files (.oso) and render them directly with V-Ray. The V-Ray OSL Mtl plug-in can be used with shaders that write in closure color output parameters.
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These properties can also be found on the node itself.
OSL Source – Specifies whether the OSL shader code is inserted internally or loaded through a file. Use the Image Added button to manually refresh the OSL Source, in case you have entered new information into the field.
Internal– The OSL shader code is inserted inline. External– The OSL shader code is loaded through a file. Paste the file directory into the field or click on the icon to open the File View window and select the file from there.
Max Ray Depth – Specifies the maximum reflection/refraction depth for the material.
