Nathan Kopp wrote in message <36D8E0E2.36503AC2@Kopp.com>...
>Someone requested an update on the photon mapping patch.  Here's a pic.  :)

The images are great, especially considering the small # of photons used.

A couple of questions:

1) Did you ever solve the problem with splotchiness when firing random
photons? If you're still using a scanning approach do you handle the case
where an object surrounds a photon source? You'd need to scan based on
spherical coordinates in that case.

2) Are you using wavelength dependent ior or are the r,g,b caustics due to
different positions of the lights? If you're doing wl-dependent ior, how do
you encode the light's spectrum in the photon? I punted and simply fired
multiple single-wavelength photons (jittered spectrum sampling) if the
target had a wl-dependent ior (and prayed that subsequent objects weren't
wl-dependent).

Thanks
Mike

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