[Radiance-general] Question about transdata usage

[Mark Stock]

Okay, I think I've figured it out. The ridiculously high
rendering times are from the trans-trans-mixdata simulation
with a tspec of 0.5 on the "issmoke" material. I have the tspec
at 0.1 now, and it seems to render in a much more reasonable
time, *and* the cloud volume self-shadows beautifully.

I'll put some images up as soon as I can the network here
set up a little better (e-mail from Win, real work on Linux).

Thanks for all of your help.

Mark

On Thu, 3 Apr 2003, Mark Stock wrote:
>
> The problem now is that I only get good renderings if the
> tspec is 1.0, which creates very dark cloud volumes. I am
> looking for more of a high-albedo look. When I reduce the tspec
> to anything below 1.0, the entire volume thickens.
>
> I am going to try to use mixdata to mix between a purely
> transparent and a semi-transparent and diffusely scattering
> material. I think that'll fix the problem.
> [time warp]
> Okay, I tried that, and it seems to render about 100 times slower,
> maybe 1000 times slower. Hmmm.
>