[Radiance-general] Rendering parameters help and weird colors

[Germán Molina Larrain]

Well, thanks guys! I will try making the -ar bigger, and illum. Is just, I
think that, on the Rendering with Radiance Book, John Mardaljevic mentions
that for daylighting it is not recommended to use Illums.

Anyway... I will use more neutral colors, illums and a higher ambient
resolution as a learning exercise.

*Would this same model cause problems when using the Three-phase method?*

THANKS VERY MUCH

German

German




2013/4/17 Christopher Rush <Christopher.Rush at arup.com>

> Because the size of your exterior site geometry is so large compared to
> your room, you could increase –ar. There’s a formula to calculate a good
> value, which I think is part of what the rad command does if the scene
> dimensions are set smaller than your whole octree. If your rendering
> doesn’t take too long you could just try increasing it arbitrarily, maybe
> jump up to 1000 to look for any benefit. You could also try setting –as
> around 500 instead of the default 128.****
>
> ** **
>
> Those are the quick and easy things to try, but the recommendations from
> Rob and Greg might be even better or faster.****
>
> ** **
>
> *From:* Germán Molina Larrain [mailto:gmolina1 at uc.cl]
>
> ****
>
> My ambient parameters were (the rest are all defaults):****
>
> ** **
>
> -ab 8 -ad 2000 -aa 0.05 -ar 256****
>
> ** **
>
> ** **
>
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