[Radiance-general] estimating -av values, color

[Rob Guglielmetti]

On Jul 23, 2005, at 4:53 AM, Carsten Bauer wrote:
> I think one point is important to consider: setting a constant 'rest' 
> ambient value -av for the whole scene is a very crude thing which can 
> be applied moderately to prevent certain regions appearing unnaturally 
> dark, but it will be difficult to use -av as some kind of substitution 
> on objects otherwise excluded from ambient ray tracing..
> It quickly looks strange an unnatural either. I remember that it even 
> was difficult to tweak things that way in POVRay, where you could 
> (still can?) set
> an ambient value for each material (resp. finish) separately..

Hey, now that would be cool.  Is there any way that could be added to 
Radiance?  The ability to have multiple -av's for various materials 
would increase the usability of -ae, I think. Especially for large 
scenes that incorporate interior & exterior elements...

=================
    Rob Guglielmetti
www.rumblestrip.org