fglCullFace(3G) OpenGL Reference fglCullFace(3G)NAME
fglCullFace - specify whether front- or back-facing facets can be culled
FORTRAN SPECIFICATION
SUBROUTINE fglCullFace( INTEGER*4 mode )
PARAMETERS
mode Specifies whether front- or back-facing facets are candidates for
culling. Symbolic constants GL_FRONT, GL_BACK, and
GL_FRONT_AND_BACK are accepted. The initial value is GL_BACK.
DESCRIPTION
fglCullFace 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
fglEnable and fglDisable commands with the argument GL_CULL_FACE. Facets
include triangles, quadrilaterals, polygons, and rectangles.
fglFrontFace specifies which of the clockwise and counterclockwise facets
are front-facing and back-facing. See fglFrontFace.
NOTES
If mode is GL_FRONT_AND_BACK, no facets are drawn, but other primitives
such as points and lines are drawn.
ERRORS
GL_INVALID_ENUM is generated if mode is not an accepted value.
GL_INVALID_OPERATION is generated if fglCullFace is executed between the
execution of fglBegin and the corresponding execution of fglEnd.
ASSOCIATED GETS
fglIsEnabled with argument GL_CULL_FACE
fglGet with argument GL_CULL_FACE_MODE
SEE ALSO
fglEnable, fglFrontFace
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