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48 lines
1.5 KiB
Plaintext
48 lines
1.5 KiB
Plaintext
{{QBDLDATE:05-20-2022}}
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{{QBDLTIME:23:18:48}}
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'''_glCullFace:''' specify whether front- or back-facing facets can be culled
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{{PageSyntax}}
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::SUB '''_glCullFace''' (BYVAL mode AS _UNSIGNED LONG)
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:: void '''_glCullFace'''(GLenum {{Parameter|mode}});
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; mode
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: Specifies whether front- or back-facing facets are candidates for culling. Symbolic constants {{KW|_GL_FRONT}}, {{KW|_GL_BACK}}, and {{KW|_GL_FRONT_AND_BACK}} are accepted. The initial value is {{KW|_GL_BACK}}.
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{{PageDescription}}
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'''_glCullFace''' specifies whether front- or back-facing facets are culled (as specified by ''mode'') when facet culling is enabled. Facet culling is initially disabled. To enable and disable facet culling, call the {{KW|_glEnable}} and {{KW|_glDisable}} commands with the argument {{KW|_GL_CULL_FACE}}. Facets include triangles, quadrilaterals, polygons, and rectangles.
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{{KW|_glFrontFace}} specifies which of the clockwise and counterclockwise facets are front-facing and back-facing. See {{KW|_glFrontFace}}.
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{{PageNotes}}
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If {{Parameter|mode}} is {{KW|_GL_FRONT_AND_BACK}}, no facets are drawn, but other primitives such as points and lines are drawn.
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{{PageErrors}}
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{{KW|_GL_INVALID_ENUM}} is generated if {{Parameter|mode}} is not an accepted value.
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{{PageUseWith}}
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{{KW|_glIsEnabled}} with argument {{KW|_GL_CULL_FACE}}
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{{KW|_glGet}} with argument {{KW|_GL_CULL_FACE_MODE}}
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{{PageSeeAlso}}
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[[_GL|SUB _GL]]
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{{KW|_glEnable|(GL_CULL_FACE)}}, {{KW|_glFrontFace}}
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{{PageCopyright}}
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