词条 | glCullFace |
释义 | glCullFace NAME glCullFace - specify whether front- or back-facing facets can be culled C SPECIFICATION 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. DESCRIPTION glCullFace specifies whether front- or back-facing facets are culled (as specified by mode) when facet culling is enabled. Facet culling is enabled and disabled using the glEnable and glDisable commands with the argument GL_CULL_FACE. Facets include triangles, quadrilaterals, polygons, and rectangles. glFrontFace specifies which of the clockwise and counterclockwise facets are front-facing and back-facing. See "glFrontFace" . ERRORS GL_INVALID_ENUM is generated if mode is not an accepted value. GL_INVALID_OPERATION is generated if glCullFace is called between a call to glBegin and the corresponding call to glEnd. ASSOCIATED GETS glIsEnabled with argument GL_CULL_FACE glGet with argument GL_CULL_FACE_MODE SEE ALSO "glEnable" , "glFrontFace" |
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