So, this is a test for an animation. What I want is the heathaze effect you
can see in the distance on hot days. I'm not quiet sure if the effect is a
little too much and too jittery, if anyone has got a link to a RL example
I'd be happy. :-)

Anyways, the technique is simple: I just place a sphere directly on the
location of the camera and apply some normals which are translated to start
at ground-level and fade out to nothing when raising. Since the rays will
only get refracted on angular surfaces, the perturbation only takes place
where the rays hit on a normal, otherwise they just pass through the sphere.

Comments, suggestions?

Regards,
Tim

-- 
"Tim Nikias v2.0"
Homepage: <http://www.nolights.de>

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Download 'haze_test.mpg' (77 KB)