Am 25.01.2011 02:25, schrieb Christian Froeschlin:
> A "quick" gem/photon test scene that got a bit out of hand.
> The diamond geometry is from "Whong" on TurboSquid. Also used
> are POV-Tree and a HDRI probe from unparent.com. And yes I
> know emeralds aren't usually cut like that ;)

Looks nice. But the focal blur is definitely too strong, making the 
scene look like a miniature. (Unless of course that effect is intended.)

As a rule-of-thumb, the aperture parameter (which actually specifies the 
diameter of the "virtual pupil") should be in the order of magniture of 
(camera height above ground)*0.003, presuming the camera to be at eye level.

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