Description Tests whether a ray is "Live". Depending on the number of rays traced, it may be necessary to dimension ray index and ray counter variables as data type Huge_ instead of Long. Please see Multi-threaded Raytracing for more information.
Syntax live = IsRayLive( id )
Parameters live (Boolean) Returns True if ray is "Live", False otherwise.
id As Long (or Huge_) Ray identifier number.
Remarks Queries a ray's "Live" attribute. See Multi-threaded Raytrace for a detailed explanation of the meaning of a "Live" ray. This attribute is related to the allocation of rays to different CPUs during multi-threaded raytracing and their subsequent splitting.
See Also
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