[Radiance-general] rvu exposure setting

[Stefano Moret]

Hi,

I've a basic question which I haven't really succeeded to get answer to from the different tutorials. When I visualize an octree with rvu I usually set -av and -ab as first parameters.
As far as I understand, the "ambient value" should set the brightness of the scene, but I don't see any change by setting it to different values, and to get a nice image I usually use the -pe option to set the exposure.
Could you please enlighten me on the usage of "ambient vale" option to get a good exposure in my images?

Thanks,
Stefano

--

Stefano Moret
California Lighting Technology Center<http://cltc.ucdavis.edu/>
University of California, Davis
633 Pena Drive
Davis, CA 95618

530-747-3846
smoret at ucdavis.edu<mailto:smoret at ad3.ucdavis.edu>

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