glStencilFuncSeparate Interface to
OpenGL function glStencilFuncSeparate
usage: glStencilFuncSeparate( face, func, ref, mask )
C function: void glStencilFuncSeparate(GLenum face, GLenum func, GLint ref, GLuint mask)
Psychtoolbox/PsychOpenGL/MOGL/wrap/glStencilFuncSeparate.m