"Greg M. Johnson" <gregj;-)565### [at] aolcom> wrote in message 
news:41dcb18c$1@news.povray.org...
>I dunno.
>
> 3.3.4.2.5  suggests that error_bound is fractional.  Perhaps the answer, 
> is (hopefully) "No, no parms implicitly need to be scaled if you scale 
> your scene a few orders of magnitude".
>

You can change variables to see how they effect the overall scene easily 
enough. From "3.3.4.3 Tips on Radiosity"

<quote>
If you want to see where your values are being calculated set radiosity 
count down to about 20, set radiosity nearest_count to 1 and set 
gray_threshold to 0. This will make everything maximally patchy, so you will 
be able to see the borders between patches. There will have been a radiosity 
calculation at the center of most patches. As a bonus, this is quick to run. 
You can then change the error_bound up and down to see how it changes 
things. Likewise modify minimum_reuse.
</quote>

Well I know the effects of setting a value too low for a particular view.

- Grim

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