This page provides information on the V-Ray Multi Sub-Object Map.
Default Color – Specifies a default color or texture for objects without Object IDs.
Get ID from – Specifies the meaning of the ID parameters.
Use face material ID – When more than one material is applied to the different faces of the same object, Maya will internally create face IDs. If all those materials share the same VRayMultiSubTex, V-Ray will consider the face IDs when feeding the data (color or texture) to the materials.
Use object ID – The VRayMultiSubTex will consider the Object IDs of the object when feeding the data (color or texture) to the material.
Random by RenderID – The VRayMultiSubTex will assign random colors based on RenderIDs (internally generated by V-Ray).
Random by node name – Generates a color index based on the name of the node that the texture is applied to.
Random by instance ID – The VRayMultiSubTex will assign random colors based on the IDs of objects instanced with the particle instancer in Maya.
Texture Switch – Enables the Switch texture parameter to determine which texture will be used in the material.
Switch texture – A floating point value that calls the texture from the Texture List (below in the UI) by the ID number.
Interpolate – If the switch value falls between two textures from the Texture list, this interpolate between them. Otherwise, when disabled, the closest texture from the list will be used.
Add New Item – Adds a new sub-texture to the texture list.
Used – Enables the sub-texture for rendering.
Value – For modes that use IDs, specifies the ID that will correspond to each texture.
A few typical uses for the MultiSubTex Map are as follow: