glVertexAttrib4Nub Interface to
OpenGL function glVertexAttrib4Nub
usage: glVertexAttrib4Nub( index, x, y, z, w )
C function: void glVertexAttrib4Nub(GLuint index, GLubyte x, GLubyte y, GLubyte z, GLubyte w)
Psychtoolbox/PsychOpenGL/MOGL/wrap/glVertexAttrib4Nub.m