Description Retrieves the Source Ray Number for a specified Ray in the Ray Buffer. 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 rayNum = GetRaySourceRayNumber ( id )
Parameters rayNum (Long or Huge_) The Source Ray Number for the specified Ray, or -1 if there is a problem.
id As Long (or Huge_) Identifier of the ray.
Remarks This subroutine retrieves the Source Ray Number for a specified Ray in the Ray Buffer. If there is a problem, the function sets an error and returns -1.
The Source Ray Number, rayNum, is the n'th ray created by the ray's parent source.
See Also Examples
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