glTexSubImage3D Interface to
OpenGL function glTexSubImage3D
usage: glTexSubImage3D( target, level, xoffset, yoffset, zoffset, width, height, depth, format, type, pixels )
C function: void glTexSubImage3D(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLsizei width, GLsizei height, GLsizei depth, GLenum format, GLenum type, const GLvoid* pixels)
Psychtoolbox/PsychOpenGL/MOGL/wrap/glTexSubImage3D.m