Hi guys

If I want caustics on a surface BELOW a photon target, must the surface that
the photon target is on also be a photon target?

I have tried many combinations but simply cannot get caustics on a surface
"behind" a photon target, even with very small spacings and lots of photons
- all my photon caustics stay confined to the glass object. I simply cannot
get caustics onto the table "behind" the glass standing on it.

Any idea what exactly is wrong? Concisely:

                        photon emitting light
                        v
            |   |       *
            |   |
____________|   |
     ^         ^ glass          
Surface

I want caustics not just inside the glass, but also here, on the "table":

caustics
    |
    |    |
    v    |
_________|

What should my scene code look like? Must the "table" be a target or not?
Must the glass "collect" photons? If I make it "collect" photons its
completely white, which I do not want.

Any help appreciated!

Thanks...
-- 
Stefan Viljoen
Software Support Technician
Polar Design Solutions

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