Subject:
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Re: trans black holes
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Newsgroups:
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lugnet.cad.ray
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Date:
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Wed, 3 Sep 2003 16:37:21 GMT
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Viewed:
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1621 times
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In lugnet.cad.ray, Travis Kunce wrote:
> take a look at this render below.
>
> http://www.brickshelf.com/gallery/elkane/Renderings/alpha.jpg
>
> notice the dark area behind and below the scoops behind the canopy.
> There is a trans red tile back there, that itself looks (ok?) But
> notice the white tiles below it. This is an annoying effect that I
> routinely notice when i use the 1x1 trans tiles. It seems like the tile
> is sucking in the value from the parts within a certain radius of it.
> the same thing appears to be happening with the yellow tile near the
> front end to a lesser degree.
>
> I'm using 2 lights very dim.
> lgeo parts
> j's color library
> and full radiosity
>
> any idea how i might correct that. In general I'm having a lot of fun
> rendering, but trans parts are a tremendous pain to get even close to
> correct.
>
> any help would be appreciated
>
> -tk
One thing i found helps to eliminate these artifacts is to increase the max
trace level. Assuming you are using the most recent version of j de haan's
radiosity files, this is quite easy. Its the fifth option in the series. Try 5
like it recommends, but you can go up to 20 or even higher until this
disappears. Hope that helps a little...
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Message has 1 Reply:
 | | Re: trans black holes
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| (...) Increasing the value of max_trace_level did the trick for me. Setting it back to 5 (the usual default) reduced but did not eliminate the artifacts for me. Setting it to 20 (as in the Raves library IIRC) or 25 (in Jeroen de Haan's v1 radiosity (...) (21 years ago, 4-Sep-03, to lugnet.cad.ray, FTX)
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Message is in Reply To:
| | trans black holes
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| take a look at this render below. (URL) the dark area behind and below the scoops behind the canopy. There is a trans red tile back there, that itself looks (ok?) But notice the white tiles below it. This is an annoying effect that I routinely (...) (21 years ago, 3-Sep-03, to lugnet.cad.ray)
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