V-Ray for Rhino Manual - Rum

V-Ray for Sketch-Up Two-Sided Material
The V-Ray for Sketch-Up Two-Sided Material, or VraySkp2SidedMat as it appears in V-Ray for
Rhino, is simply a material that allows for the front faces of a material to have a separate
material than the back faces. It can be very useful when creating very quick conceptual renders
when trying to convey ideas with minimal modeling. This tool developed out of Sketch-Up users’
desire to create a V-Ray material that would act with different materials as the standard Sketch-
Up material does.
Adding a V-Ray for Sketch-Up Two-Sided Material
First we will need to add the Sketch-Up Two sided material. Open the material editor and rightclick
on Scene materials and go to Add Material. This will in turn bring up another menu with
several different material formats. Click on VraySkp2SdMat which is the last option.
Working with V-Ray for Sketch-Up Two-Sided Material
The Sketch-Up Two-Sided material looks very similar to the V-Ray Two-Sided material. It has two
slots; one for the front material, and another for the back material. As with the V-Ray Two-Sided
material the materials cannot be created from within the Two-Sided material, but must be
already created in order to be added to either the front or the back material. Although it Is
possible to utilize much of the features of the standard V-Ray material within the Sketch-Up Two-
Sided material, it is not recommended to use any refraction layers within materials used for the
Two-Sided material. Unlike the V-Ray Two-Sided Material, which needs a material for each side,
the Sketch-Up Two-Sided Material will work just fine without a material defined for each side.
For whichever side does not have a material assigned, that side will not be rendered. This can be
very useful for architectural visualization, and can be used to look inside rooms with the
appearance of the wall still affecting the illumination of the enclosed environment.
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