Tim Cook <z99### [at] gmailcom> wrote:
> Are you wanting a visualisation of the beam of light in the space 
> between the cube and the floor, or just the effect on the surface?  If 
> the latter, radiosity is sufficient.

  Radiosity only does diffuse reflection, not specular (ie. mirror)
reflection, which is what photon mapping does. I got the impression
that the original poster wanted the light to reflect from a reflective
(mirror-like) object.

-- 
                                                          - Warp

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