mirror of
https://github.com/QB64-Phoenix-Edition/QB64pe.git
synced 2024-07-01 13:50:36 +00:00
44 lines
1.4 KiB
Plaintext
44 lines
1.4 KiB
Plaintext
'''_glCullFace:''' specify whether front- or back-facing facets can be culled
|
|
|
|
|
|
{{PageSyntax}}
|
|
|
|
::SUB '''_glCullFace''' (BYVAL mode AS _UNSIGNED LONG)
|
|
:: void '''_glCullFace'''(GLenum {{Parameter|mode}});
|
|
|
|
|
|
; mode
|
|
: 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}}.
|
|
|
|
|
|
{{PageDescription}}
|
|
|
|
'''_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.
|
|
|
|
{{KW|_glFrontFace}} specifies which of the clockwise and counterclockwise facets are front-facing and back-facing. See {{KW|_glFrontFace}}.
|
|
|
|
|
|
{{PageNotes}}
|
|
|
|
If {{Parameter|mode}} is {{KW|_GL_FRONT_AND_BACK}}, no facets are drawn, but other primitives such as points and lines are drawn.
|
|
|
|
|
|
{{PageErrors}}
|
|
|
|
{{KW|_GL_INVALID_ENUM}} is generated if {{Parameter|mode}} is not an accepted value.
|
|
|
|
|
|
{{PageUseWith}}
|
|
|
|
{{KW|_glIsEnabled}} with argument {{KW|_GL_CULL_FACE}}
|
|
|
|
{{KW|_glGet}} with argument {{KW|_GL_CULL_FACE_MODE}}
|
|
|
|
|
|
{{PageSeeAlso}}
|
|
|
|
{{KW|_GL}}
|
|
{{KW|_glEnable|(GL_CULL_FACE)}}, {{KW|_glFrontFace}}
|
|
|
|
|
|
{{PageCopyright}} |