V-Ray Vertex Colors texture parameters
Search Keywords: vertex, colors, baking
The VRayVertexColors is a texture map that can be used to render the color/UV sets of a Maya mesh or a V-Ray proxy.
Color set - this is where the color set name of a mesh is connected. This connection is only used if the Type parameter is set to "Color Set connection". You'll need to use the "Connection editor" to connect a mesh's "colorSet[index].colorName" plug to the "colorSet" plug of the vertex color texture.
Type - this parameter enables you to choose how the vertex color texture will detect the color or UV set to use.
Set name - this parameter is only used when Type is set to "Set name". Just enter the color or UV set name as specified in the rest of Maya's UI. The appropriate color/UV information will be found based on the objects that have this vertex color texture assigned as part of their shading network(s). This gives you the ability to create a single VRayVertexColors texture to be used by many meshes as long as their color/UV sets share the same name.
Use UV set - when this parameter is on, the "Set name" will be searched in the list of UV sets, instead of the list of color sets. The values of the UV coordinates will be directly used as colors.
Set Index - this parameter is only used when Type is set to "Set Index (V-Ray proxies only)". V-Ray proxies exported from 3ds Max may not have color/UV set names information. In that case you'll need to know the exact index of the corresponding set when it was exported from 3ds Max and use it as the value of this parameter.
Default color - the color to use for vertices/faces that don't have color information. Note that you can plug a texture here.