glCullFace — specify whether front- or back-facing facets can be culled
Specifies whether front- or back-facing facets are candidates for culling.
GL_FRONT_AND_BACK are accepted.
The initial value is
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
glEnable and glDisable commands
with the argument
Facets include triangles,
GL_FRONT_AND_BACK, no facets are drawn, but other
primitives such as points and lines are drawn.
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