fglGetDetailTexFuncSGIS(3G) OpenGL Reference fglGetDetailTexFuncSGIS(3G)NAME
fglGetDetailTexFuncSGIS - get detail texture scaling function
FORTRAN SPECIFICATION
SUBROUTINE fglGetDetailTexFuncSGIS( INTEGER*4 target,
CHARACTER*8 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
fglGetDetailTexFuncSGIS retrieves the detail texture scaling function
samples specified by fglDetailTexFuncSGIS. See fglDetailTexFuncSGIS for
a discussion of detail texturing.
NOTES
The number of elements in points may be queried by calling
fglGetTexParameter 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 fglGetDetailTexFuncSGIS is executed
between the execution of fglBegin and the corresponding execution of
fglEnd.
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
fglGetDetailTexFuncSGIS correctly.
SEE ALSO
fglDetailTexFuncSGIS.
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