User guide

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Control (UI) Default Value Function
z_flip Yes Determines whether lights orient along positive or
negative Z.
geometricApproximation
motionfactor 0 Controls the trade off between quality and rendering
time, when rendering motion blurred objects whose
motion in screen space is large. When set to a value
greater than 0 the renderer checks the length of motion
blur on screen for each motion blurred object, and if the
distance is large, raises the object’s effective shading rate.
focusfactor -1 Controls the trade off between quality and rendering
time for depth of field blur due to RiDepthOfField. When
set to 0 the renderer uses the default shading rate. When
set to a value greater than 1.0, affected objects have
their shading rate increased.
Note: If motionfactor and focusfactor are both set,
motionfactor affects only the motion blur adjustment,
and focusfactor only the depth of field adjustment.
flatness 1 Sets the accuracy of geometric approximation used for
geometric primitives. Expressed as the distance from the
true surface to the approximated surface, in pixels.
subdivisionMesh
scheme catmull-clark The subdivision scheme used by a subdivision mesh or
surface defined by RiSubdivisionMesh.
The supported options are catmull-clark, loop and
bilinear.
basis
orientation rh Sets the current orientation to be either outside
(matching the current coordinate system), inside (the
inverse of the current coordinate system), lh (for explicit
left-handed orientation) or rh (for explicit right-handed
orientation).
5 NODES L-Q | PRMANOBJECTSETTINGS