glCullFace(3gl)

1GLCULLFACE(3G)                                                  GLCULLFACE(3G)
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NAME

6       glCullFace - specify whether front- or back-facing facets can be culled
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C SPECIFICATION

10       void glCullFace( GLenum mode )
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PARAMETERS

14       mode  Specifies whether front- or back-facing facets are candidates for
15             culling.    Symbolic    constants    GL_FRONT,    GL_BACK,    and
16             GL_FRONT_AND_BACK are accepted.  The initial value is GL_BACK.
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DESCRIPTION

19       glCullFace  specifies  whether  front- or back-facing facets are culled
20       (as specified by mode) when facet culling is enabled. Facet culling  is
21       initially  disabled.   To  enable  and  disable facet culling, call the
22       glEnable and glDisable commands with the argument GL_CULL_FACE.  Facets
23       include triangles, quadrilaterals, polygons, and rectangles.
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25       glFrontFace  specifies  which  of  the  clockwise  and counterclockwise
26       facets are front-facing and back-facing.  See glFrontFace.
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NOTES

29       If  mode is GL_FRONT_AND_BACK, no facets are drawn,  but  other  primi‐
30       tives such as points and lines are drawn.
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ERRORS

33       GL_INVALID_ENUM is generated if mode is not an accepted value.
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35       GL_INVALID_OPERATION is generated if glCullFace is executed between the
36       execution of glBegin and the corresponding execution of glEnd.
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ASSOCIATED GETS

39       glIsEnabled with argument GL_CULL_FACE
40       glGet with argument GL_CULL_FACE_MODE
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