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 GL_TEXTURE_2D.

     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 GL_TEXTURE_2D	and pname set to
     GL_DETAIL_TEXTURE_FUNC_POINTS_SGIS.

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

     GL_INVALID_OPERATION 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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