Jan Dvorak <jan### [at] centrumcz> wrote:

> > Finally I photoshopped it to give it a slightly more "photographic" appearance
> > (a glow
> > effect, a lens distortion, and adding slight noise into the darker areas of the
> > scene). The impact was minor, but I think helps. People have code to
> > do those things inside POV, but I just prefer using Photoshop.
>
> I like the chromatic abberation

The chromatic aberration is part of the lens distortion in Photoshop. Actually
there is a filter called "Lens Correction", but you can take a clean image
(i.e. ray traced) and apply barrel distortion, chromatic aberration and
vignetting instead of the more usual case of removing them from a photographic
image. The only (slight) limitation with the filter is that it can't work on
32bit (HDR) images, only 16bit ones. In practice it's pretty good.

I got the idea from Tek's amazing RSOCP image:
http://teknof.deviantart.com/art/YARSOCP-53555325 but used Photoshop rather
than doing the effect "in camera".

The other two effects added in Photoshop were done by hand: the glow and adding
noise to darker areas.

Cheers,
Edouard.

Post a reply to this message