[Radiance-general] Re: rendering parameters

[Greg Ward]

Hi Ada,

I should have been more specific -- setting -ab 0 -av 0 0 0 eliminates 
_diffuse_ interreflections in the calculation -- specular reflections 
will still be present.  The only way to get rid of specular reflections 
(reliably) is to eliminate specular components from your materials.  In 
the case of a glass surface, you would have to substitute trans with a 
zero reflected component.

-Greg

Ada Fraser <adafraser@yahoo.com> writes:
>
> Hello. Thank you for the answer Greg. It is very
> helpful. I have one follow up question: When I set the
> rendering parameters -ab 0 -av 0 0 0, I am eliminating
> the interreflected component. But I still see some
> reflection of the interior surfaces on my window
> glazing. Since there is no interreflection, why is
> this happening?
>
> Thanks again.
> Ada