IBM Visualization Data Explorer Programmer's Reference

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DXQueryDistantLight

Function

Returns information about a distant Light.

Syntax

#include <dx/dx.h>

Light DXQueryDistantLight(Light l, Vector *direction, RGBColor *color)

Functional Details

Determines whether l is a distant Light and returns in *direction and *color the information specified when the light was created. The light source is located at an infinite distance from the scene in the direction specified by direction.

Return Value

Returns l (if it is a Distant Light) or NULL (if it is another type) without setting an error code; otherwise, returns NULL and sets an error code.

See Also

DXNewDistantLight

16.8 , "Light Class".


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