def update_perspective(self, gl):
if self.DEBUG_MODE != None:
self.render_state.radius_of_view = Debug.RADIUSOFVIEW
self.projection_matrix = Matrix4x4.create_perspective_projection(
self.get_width(),
self.get_height(),
self.render_state.radius_of_view * 3.141593 / 360.0)
gl.glMatrixMode(gl.GL_PROJECTION)
matrix = np.array(self.projection_matrix.values, dtype=np.float32)
gl.glLoadMatrixf(matrix)
# The image is mirrored so scale it to make the polygon fronts into backs
gl.glScalef(-1.0, 1.0, 1.0)
# Switch back to the model view matrix.
gl.glMatrixMode(gl.GL_MODELVIEW)