These parameters allow finer control on how 3Delight tessellates geometry when using the REYES rendering algorithm.
The Dicing properties
Reference Camera
By default, 3Delight for Softimage uses the view camera to adaptively tessellate geometry. While this is the best default for almost every single scenario, there is one particular case in which a different camera is better: sequences using large displacements and a moving camera. In this particular scenario one might notice "pops" in displacements which are due to a change of camera position (and thus a change in tessellation). Using this parameter, it becomes possible to specify a static camera as a guide for tessellation. Many cameras can be specified by using a comma as a separator for camera names.
View-Dependent Tessellation
3Delight for Softimage always tries to optimized geometry tessellation as to minimize the generation of unnecessary data. For example, if a polygon is perpendicular to the camera plane it won't be tessellated as finely as a polygon that is facing the camera plane. This strategy might cause problems if the perpendicular polygon has some important displacement applied to it (after displacement, the polygon might actually face the camera for large parts of its area). Switching off this parameter will cause 3Delight for Softimage to tessellate geometry as if it was always facing the camera, thereby solving the aforementioned issue.