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-_C_ License Applicability. Except to the extent portions of this file are
-_C_ made subject to an alternative license as permitted in the SGI Free
-_C_ Software License B, Version 1.1 (the "License"), the contents of this
-_C_ file are subject only to the provisions of the License. You may not use
-_C_ this file except in compliance with the License. You may obtain a copy
-_C_ of the License at Silicon Graphics, Inc., attn: Legal Services, 1600
-_C_ Amphitheatre Parkway, Mountain View, CA 94043-1351, or at:
-_C_
-_C_ http://oss.sgi.com/projects/FreeB
-_C_
-_C_ Note that, as provided in the License, the Software is distributed on an
-_C_ "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS
-_C_ DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND
-_C_ CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A
-_C_ PARTICULAR PURPOSE, AND NON-INFRINGEMENT.
-_C_
-_C_ Original Code. The Original Code is: OpenGL Sample Implementation,
-_C_ Version 1.2.1, released January 26, 2000, developed by Silicon Graphics,
-_C_ Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc.
-_C_ Copyright in any portions created by third parties is as indicated
-_C_ elsewhere herein. All Rights Reserved.
-_C_
-_C_ Additional Notice Provisions: The application programming interfaces
-_C_ established by SGI in conjunction with the Original Code are The
-_C_ OpenGL(R) Graphics System: A Specification (Version 1.2.1), released
-_C_ April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version
-_C_ 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X
-_C_ Window System(R) (Version 1.3), released October 19, 1998. This software
-_C_ was created using the OpenGL(R) version 1.2.1 Sample Implementation
-_C_ published by SGI, but has not been independently verified as being
-_C_ compliant with the OpenGL(R) version 1.2.1 Specification.
-_C_
-_C_ $Date: 2001/03/19 17:45:27 $ $Revision: 1.1.1.1 $
-_C_ The first character in this file must be an '_'!
-_C_ Anything on a line after _C_ is ignored
-_define(_filters,eqn)_C_
-_C_ eqn is automatically replaced with neqn for nroff
-_header(LoadSamplingMatrices, load NURBS sampling and culling matrices)
-_names(LoadSamplingMatrices)
-.EQ
-delim $$
-.EN
-.SH PARAMETERS
-_phead(_param1)
-Specifies the NURBS object (created with _cmnd(NewNurbsRenderer)).
-_phead(_param2)
-Specifies a modelview matrix (as from a _glcmnd(GetFloatv) call).
-_phead(_param3)
-Specifies a projection matrix (as from a _glcmnd(GetFloatv) call).
-_phead(_param4)
-Specifies a viewport (as from a _glcmnd(GetIntegerv) call).
-.SH DESCRIPTION
-_cmnd uses _param2, _param3, and _param4 to recompute the sampling and culling
-matrices stored in _param1.
-The sampling matrix determines how finely a NURBS curve or surface
-must be tessellated to satisfy the sampling tolerance (as determined by the
-_gluconst(SAMPLING_TOLERANCE) property).
-The culling matrix is used in deciding if a NURBS curve or surface
-should be culled before
-rendering (when the _gluconst(CULLING) property is turned on).
-.P
-_cmnd is necessary only if the _gluconst(AUTO_LOAD_MATRIX) property is turned
-off (see _cmnd(NurbsProperty)).
-Although it can be convenient to leave the _gluconst(AUTO_LOAD_MATRIX)
-property turned on, there can be a performance penalty for doing so.
-(A round trip to the GL server is needed to fetch the current values
-of the modelview matrix, projection matrix, and viewport.)
-.SH SEE ALSO
-_cmnd(GetNurbsProperty),
-_cmnd(NewNurbsRenderer),
-_cmnd(NurbsProperty)