glConvolutionFilter2D Interface to
OpenGL function glConvolutionFilter2D
usage: glConvolutionFilter2D( target, internalformat, width, height, format, type, image )
C function: void glConvolutionFilter2D(GLenum target, GLenum internalformat, GLsizei width, GLsizei height, GLenum format, GLenum type, const GLvoid* image)
Psychtoolbox/PsychOpenGL/MOGL/wrap/glConvolutionFilter2D.m