User guide

339
Control (UI) Default Value Function
referenceCamera worldCamera This option sets which camera to use when dicing
geometry. Dicing can be calculated from any camera, not
just the render camera, such as when rendering a
stereoscopic scene from two cameras, and using a third -
reference - camera to calculate dicing from.
preservecv No When set to Yes, this option guarantees that a RiCurves
Cvs are fully represented in the grid, ensuring a sufficient
dice rate for any curvature.
roundcurve No When enabled this option has the following affects on
RiCurves that do not have user supplied normals:
If hair is set to No:
Grids generated have a cylindrical cross section, and the
value of N is calculated accordingly.
If hair is set to Yes:
The grids generated are unaffected.
offscreenstrategy viewfrustumdistance Sets the dicing strategy for objects outside the viewing
frustum. Using the clamped strategy, objects outside
the frustum are never split. Under the
sphericalprojection strategy, objects outside the
frustum are diced using sphericalprojection. Under the
viewfrustumdistance strategy, objects are diced
according to their distance from the viewing frustum.
minlength 0.001 Voxel size is computed by the usual projection to raster
space metric, until any voxel dimension is smaller than
the specified minimum length.
minlengthspace world Sets the projection space used by minlength. Can be
one of world, object, or camera, or any other space
marked by a RiCoordinateSystem call.
displacementbound
sphere 0 The amount to pad the bounding box to account for
displacements.
5 NODES L-Q | PRMANOBJECTSETTINGS