Description Retrieves the data from an importance sampling specification of type "Scatter rays into the specular direction".
Syntax ImpSampGetSpecular n, indx, angle
Parameters n As Long Node number of the surface.
indx As Long The index (zero based) of the importance sampling specification.
angle As Double Returns the semi-angle (degrees) of the solid angle cone for the importance sampling specification.
Remarks This subroutine retrieves the data from an importance sampling specification of type "Scatter rays into the specular direction". If the type is not Specular, or if there is another problem, the subroutine returns without modifying angle.
See Also Examples
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