"Edouard" <pov### [at] edouardinfo> wrote:
> "clipka" <nomail@nomail> wrote:

> > If I'm asked, there should be a separate "emission" parameter, with the whole
> > "ambient" mechanism turned off in radiosity scenes.
> >
> > After all, the original intention of the ambient term, and its most common use
> > in non-radiosity scenes, is to approximate diffuse illumination - which is
> > *exactly* what radiosity is intended to model more realistically.
>
> Aha - that sounds like exactly the correct solution to this morass! Brilliant!

I'm in complete agreement; clipka's suggestion for a new keyword or parameter is
the oh-so-obvious answer. (As I envision it--probably the same way as others
here--this 'emission' parameter should be applied to individual finishes--to
set which ones actually 'illuminate' the rad scene, the others being
automatically turned off. OR, just let the global{ambient_light 0} term suffice
for that--which could be invoked or not, at the discretion of the artist. Of
course, by not invoking it, the new 'emission'-like keyword becomes
superfluous--ALL ambient finishes would then glow, as they do now. But having
that 'switch' available--rather than an automatic ambient cut-off--would give
us *options*, and even guarantee backward compatibility.)

KW

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