glCullFace
[New
- Windows 95, OEM Service Release 2]
The glCullFace
function specifies whether front- or back-facing facets can be culled.
void glCullFace(
|
GLenum mode |
|
|
); |
|
Parameters
mode
Specifies
whether front- or back-facing facets are candidates for culling. Symbolic
constants GL_FRONT and GL_BACK are accepted. The default value is GL_BACK.
Remarks
The glCullFace
function specifies whether front- or back-facing facets are culled (as specified
by mode) when facet culling is enabled. You enable and disable facet
culling using glEnable
and glDisable
with the argument GL_CULL_FACE. Facets include triangles, quadrilaterals,
polygons, and rectangles.
The glFrontFace function specifies which of
the clockwise and counterclockwise facets are front-facing and back-facing.
The following
functions retrieve information related to glCullFace:
glGet
with argument GL_CULL_FACE_MODE
glIsEnabled with argument GL_CULL_FACE
Error Codes
The following
are the error codes generated and their conditions.
|
Error
Code |
Condition |
|
GL_INVALID_ENUM
|
mode was not an accepted value. |
|
GL_INVALID_OPERATION
|
glCullFace was called between a call to glBegin and the
corresponding call to glEnd. |
See Also