Preset

Primitives

GeoShader

GeoShader s allow you to create geometry in the mental ray renderer at render time. All that's stored in your scene is a simple placeholder that defines the position of the geometry--represented by a randomized wireframe cube.

Lattice

Lattice objects are used to control lattice deformations. See the GetPrimLattice and SIGetPrimLattice commands.

Stand-in

Stand-in objects act as proxies for geometry. The stand-in consists of a bounding box that represents the bounding area of the exported geometry and a time control that allows you to modify the flow of animation.