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