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The glCullFace function specifies whether front-facing or back-facing facets can be culled.
Syntax
void WINAPI glCullFace(
GLenum mode
);
Parameters
-
mode
-
Specifies whether front-facing or back-facing facets are candidates for culling. The symbolic constants GL_FRONT, GL_BACK, and GL_FRONT_AND_BACK are accepted. The default value is GL_BACK.
Return value
This function does not return a value.
Error codes
The following error codes can be retrieved by the glGetError function.
| Name | Meaning |
|---|---|
|
mode was not an accepted value. |
|
The function was called between a call to glBegin and the corresponding call to glEnd. |
Remarks
The glCullFace function specifies whether front-facing 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.
If mode is GL_FRONT_AND_BACK, no facets are drawn, but other primitives, such as points and lines, are drawn.
The following functions retrieve information related to glCullFace:
glGet with argument GL_CULL_FACE_MODE
glIsEnabled with argument GL_CULL_FACE
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client |
Windows 2000 Professional [desktop apps only] |
| Minimum supported server |
Windows 2000 Server [desktop apps only] |
| Header |
|
| Library |
|
| DLL |
|