def replicate(self, texture):
cm = CardMaker("replicate-quad")
cm.set_frame_fullscreen_quad()
self.quad = NodePath(cm.generate())
self.quad.set_depth_test(0)
self.quad.set_depth_write(0)
self.quad.set_texture(texture)
lens = OrthographicLens()
lens.set_film_size(2, 2)
lens.set_film_offset(0, 0)
lens.set_near_far(-1000, 1000)
base.cam.node().set_lens(lens)
base.cam.reparent_to(self.quad)
