glgetsharpentexfuncsgis(3G)



glGetSharpenTexFuncSGIS(3G)    OpenGL Reference    glGetSharpenTexFuncSGIS(3G)



NAME
     glGetSharpenTexFuncSGIS - get sharpen texture scaling function


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


PARAMETERS
     target  The texture whose sharpen texture scaling function is to be
             retrieved.  Must be GLTEXTURE1D, GLTEXTURE2D, or
             GLTEXTURE3DEXT.

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

DESCRIPTION
     glGetSharpenTexFuncSGIS retrieves the sharpen texture scaling function
     samples specified by glSharpenTexFuncSGIS.  See glSharpenTexFuncSGIS for
     a discussion of sharpen texturing.

NOTES
     The number of elements in points may be queried by calling
     glGetTexParameter with target set to GLTEXTURE1D, GLTEXTURE2D, or
     GLTEXTURE3DEXT and pname set to GLSHARPENTEXTUREFUNCPOINTSSGIS.

ERRORS
     GLINVALIDENUM is generated if target is not one of the allowable
     values.

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


MACHINE DEPENDENCIES
     On RealityEngine, RealityEngine2, and VTX systems sharpen texturing may
     not be used with 3D textures or when rendering to pixmaps.


SEE ALSO
     glSharpenTexFuncSGIS.











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