func UnbindFramebufferDraw() { gl.BindFramebuffer(gl.DRAW_FRAMEBUFFER, 0) }
func UnbindFramebufferRead() { gl.BindFramebuffer(gl.READ_FRAMEBUFFER, 0) }
func UnbindFramebuffer() { gl.BindFramebuffer(gl.FRAMEBUFFER, 0) }
func (f Framebuffer) BindDraw() { gl.BindFramebuffer(gl.DRAW_FRAMEBUFFER, f.internal) }
func (f Framebuffer) BindRead() { gl.BindFramebuffer(gl.READ_FRAMEBUFFER, f.internal) }
func (f Framebuffer) Bind() { gl.BindFramebuffer(gl.FRAMEBUFFER, f.internal) }