Glubeginsurface - HP b2600 Reference Manual

gluBeginSurface

gluBeginSurface, gluEndSurface: delimit a NURBS surface definition.
C Specification
void gluBeginSurface(
void gluEndSurface(
Parameters
nurb
Description
Use gluBeginSurface to mark the beginning of a NURBS surface definition. After calling
gluBeginSurface, make one or more calls to gluNurbsSurface to define the attributes of
the surface. Exactly one of these calls to gluNurbsSurface must have a surface type of
GL_MAP2_VERTEX_3 or GL_MAP2_VERTEX_4. To mark the end of the NURBS
surface definition, call gluEndSurface.
Trimming of NURBS surfaces is supported with gluBeginTrim, gluPwlCurve,
gluNurbsCurve, andgluEndTrim. See the gluBeginTrim reference page for details.
GL evaluators are used to render the NURBS surface as a set of polygons. 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.
See Also
gluBeginCurve,
gluBeginTrim,
gluNewNurbsRenderer,
gluNurbsCurve,
gluNurbsSurface,
gluPwlCurve
Chapter 2
GLUnurbs* nurb)
GLUnurbs* nurb)
Specifies the NURBS object (created with gluNewNurbsRenderer).
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gluBeginSurface
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