IdentifiantMot de passe
Mot de passe oublié ?Je m'inscris ! (gratuit)
Page OpenGL 4.X Page OpenGL 3.X Page OpenGL 2.X --- Revenir au moteur de recherche


glBlendColor — set the blend color

C Specification

void glBlendColor(GLclampf  red,
 GLclampf  green,
 GLclampf  blue,
 GLclampf  alpha);


red, green, blue, alpha

specify the components of GL_BLEND_COLOR


The GL_BLEND_COLOR may be used to calculate the source and destination blending factors. The color components are clamped to the range 0 1 before being stored. See glBlendFunc for a complete description of the blending operations. Initially the GL_BLEND_COLOR is set to (0, 0, 0, 0).


glBlendColor is part of the ARB_imaging subset. glBlendColor is present only if ARB_imaging is returned when glGetString is called with GL_EXTENSIONS as its argument.


GL_INVALID_OPERATION is generated if glBlendColor is executed between the execution of glBegin and the corresponding execution of glEnd.

Associated Gets

glGet with an argument of GL_BLEND_COLOR


Copyright © 1991-2006 Silicon Graphics, Inc. This document is licensed under the SGI Free Software B License. For details, see