MirOS Manual: glCullFace(3)


GLCULLFACE(3G)      UNIX Programmer's Manual       GLCULLFACE(3G)

NAME

     glCullFace - specify whether front- or back-facing facets
     can be culled

C SPECIFICATION

     void glCullFace( GLenum 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 ini-
           tial value is GL_BACK.

DESCRIPTION

     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 com-
     mands with the argument GL_CULL_FACE. Facets include trian-
     gles, quadrilaterals, polygons, and rectangles.

     glFrontFace specifies which of the clockwise and counter-
     clockwise facets are front-facing and back-facing. See
     glFrontFace.

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 glCullFace is executed
     between the execution of glBegin and the corresponding exe-
     cution of glEnd.

ASSOCIATED GETS

     glIsEnabled with argument GL_CULL_FACE
     glGet with argument GL_CULL_FACE_MODE

SEE ALSO

     glEnable(3G), glFrontFace(3G)

MirOS BSD #10-current   Printed 20.2.2012                       1

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