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This is a visualization of a mural design from a friend. AO with a bit of photoshop. 500 samples.

nice image, i like floor

reeeeeeally a nice image Paquito, congratulations

seems that AO hasn't got secrets for you....the most part of my tests are awful!

Thanks for the compliments guys. Paolo, i will be glad to help with the AO style if you have problems with it.

Thanks to you Paquito,
I won't miss the opportunity to ask you many questions about AO mode
First I must try to follow your suggestions in the topic: http://render.otoy.com/forum/viewtopic.php?f=51&t=26319

Can you post your render before the Photoshop's adjustments?

P.S. I saw only now that I forgot to answer to your question about the threshold levels
I added two images: the first one explains where the threshold regulation can be reached; the second shows the effects of its regulation
- totally black screen with some white parts if the slider is shifted to the right....it shows/brings out all the white/brighter areas in the scene
- the opposite if the slider is moved to the left....it shows/brings out all the black/darker areas in the scene.
once applied this effect to the copy of the original render you can blur it for reaching the bloom effect desired, for straighten the effect It's better to
duplicate the layer and blend it in linear dodge

Cheers, Paolo

Paolo, in that thread you linked are the before/after shots (last two images in the tutorial)

yes Paquito, I saw them and I asked you if you used the threshold level

I answered in that thread, if i remember well. I use the select color range method.

didn't read that
well, now I know another method