"Laser Pointer"

[farshizzo]

If you want something similar to a crosshair in the center of the screen, then you can just add a quad with a red dot texture to the screen.

import viz
viz.go()

tex = viz.add('dot.png')

quad = viz.add(viz.TEXQUAD,viz.SCREEN)
quad.texture(tex)
quad.translate(0.5,0.5,0)