Method blit

easyvolcap/utils/gl_utils.py:688–699

This respects the OpenGL convension of lower left corners

(self, x: int = 0, y: int = 0, w: int = 0, h: int = 0)

        gl.glScissor(0, 0, W, H)

    def blit(self, x: int = 0, y: int = 0, w: int = 0, h: int = 0):
        """
        This respects the OpenGL convension of lower left corners
        """
        w = w or self.W
        h = h or self.H
        old = gl.glGetInteger(gl.GL_READ_FRAMEBUFFER_BINDING)
        gl.glBindFramebuffer(gl.GL_READ_FRAMEBUFFER, self.fbo)  # write buffer defaults to 0
        gl.glBlitFramebuffer(x, y, x + w, y + h,  # the height is flipped
                             x, y, x + w, y + h,  # the height is flipped
                             gl.GL_COLOR_BUFFER_BIT, gl.GL_NEAREST)
        gl.glBindFramebuffer(gl.GL_READ_FRAMEBUFFER, old)


class UQuad(Mesh):