Hi Simon,

You ARE seing photons, lots of them. If you delete the photons setting in
the global_settings block (in your file "lent_test3_a.inc") you'll get an
image like this (no_photons.png).


And, perhaps if you use this include file perhaps set:
count 1000000
instead of
space 0.03
That'll reduce the number of photons to 1 Mio and renders much faster. Do
this at least when you're testing.


Your last posting:
I don't know what this test sphere is all about.

To your idea with the normals:
See next post.

Yours,
Bu.

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