2008

Ray-Trace Acceleration Parameters
Ray-Trace Acceleration: Parameters for the BSP
Methods
Rendering menu > Render > Render Scene dialog > Renderer panel > Rendering
Algorithms rollout > Raytrace Acceleration group > Choose BSP or Large BSP
as the Raytrace Acceleration method.
Main toolbar > Render Scene > Render Scene dialog > Renderer panel >
Rendering Algorithms rollout > Raytrace Acceleration group > Choose BSP or
Large BSP as the Raytrace Acceleration method.
Note: The Processing panel appears only when the mental ray renderer is the
currently active renderer.
When you choose BSP or Large BSP as the Raytrace Acceleration method on
the
Rendering Algorithms rollout on page 6118 , the parameters described here
are displayed. BSP stands for Binary Space Partitioning. BSP is the default
method. Large BSP is a variant whose partitioning tree can be swapped in and
out of memory, making it suitable for rendering very large scenes.
NOTE If the scene contains too many faces (triangles) to fit in a tree of the size
specified by the Size and Depth parameters, mental ray disregards the Size value
and creates larger leaf nodes. This can significantly slow down rendering. To avoid
this problem, increase the value of Depth.
Interface
Size Sets the maximum number of faces (triangles) in the leaf of a BSP tree.
Increasing the Size value reduces memory consumption but increases rendering
time. Default=10.
Depth Sets the maximum number of levels in the BSP tree. Increasing the
Depth value reduces rendering time, but increases memory consumption and
preprocessing time. Default=40.
mental ray Renderer | 6141