gluEndCurve man page on OpenBSD

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GLUBEGINCURVE(3G)					     GLUBEGINCURVE(3G)

NAME
       gluBeginCurve, gluEndCurve - delimit a NURBS curve definition

C SPECIFICATION
       void gluBeginCurve( GLUnurbs* nurb )

       void gluEndCurve( GLUnurbs* nurb )

       delim $$

PARAMETERS
       nurb   Specifies the NURBS object (created with gluNewNurbsRenderer).

DESCRIPTION
       Use gluBeginCurve to mark the beginning of a NURBS curve definition.
       After calling gluBeginCurve, make one or more calls to gluNurbsCurve to
       define the attributes of the curve.  Exactly one of the calls to
       gluNurbsCurve must have a curve type of GL_MAP1_VERTEX_3 or
       GL_MAP1_VERTEX_4.  To mark the end of the NURBS curve definition, call
       gluEndCurve.

       GL evaluators are used to render the NURBS curve as a series of line
       segments.  Evaluator state is preserved during rendering with
       glPushAttrib(GL_EVAL_BIT) and glPopAttrib().  See the glPushAttrib
       reference page for details on exactly what state these calls preserve.

EXAMPLE
       The following commands render a textured NURBS curve with normals;
       texture coordinates and normals are also specified as NURBS curves:

       gluBeginCurve(nobj);
	  gluNurbsCurve(nobj, ..., GL_MAP1_TEXTURE_COORD_2);
	  gluNurbsCurve(nobj, ..., GL_MAP1_NORMAL);
	  gluNurbsCurve(nobj, ..., GL_MAP1_VERTEX_4); gluEndCurve(nobj);

SEE ALSO
       gluBeginSurface(3G), gluBeginTrim(3G), gluNewNurbsRenderer(3G),
       gluNurbsCurve(3G), glPopAttrib(3G), glPushAttrib(3G)

								 March 1, 2011
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