glgetdetailtexfuncsgis(3G)



glGetDetailTexFuncSGIS(3G)     OpenGL Reference     glGetDetailTexFuncSGIS(3G)



NAME
     glGetDetailTexFuncSGIS - get detail texture scaling function


C SPECIFICATION
     void glGetDetailTexFuncSGIS( GLenum target,
                                  GLfloat *points )


PARAMETERS
     target  The texture whose detail texture scaling function is to be
             retrieved.  Must be GLTEXTURE2D.

     points  A pointer to a floating-point array which receives the retrieved
             detail texture function.  Each pair of elements in the array
             receives an LOD (level-of-detail) value and a scaling function
             value.

DESCRIPTION
     glGetDetailTexFuncSGIS retrieves the detail texture scaling function
     samples specified by glDetailTexFuncSGIS.  See glDetailTexFuncSGIS for a
     discussion of detail texturing.

NOTES
     The number of elements in points may be queried by calling
     glGetTexParameter with target set to GLTEXTURE2D and pname set to
     GLDETAILTEXTUREFUNCPOINTSSGIS.

ERRORS
     GLINVALIDENUM is generated if target is not an allowable value.

     GLINVALIDOPERATION is generated if glGetDetailTexFuncSGIS is executed
     between the execution of glBegin and the corresponding execution of
     glEnd.


MACHINE DEPENDENCIES
     On RealityEngine, RealityEngine2, and VTX systems detail texturing may
     not be used when rendering to pixmaps.

     RealityEngine, RealityEngine2, and VTX systems do not support
     glGetDetailTexFuncSGIS correctly.


SEE ALSO
     glDetailTexFuncSGIS.









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