 | | | FG question | FG question 2004-05-18 - By Denis-Jose Francois
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Hi Adam
I get that problem regularly. It's not connected with GI as it can occur when
GI is turned off. I believe its to do with one of two things:
b) objects being too close to each other - closer than the minimum value
specified in the FG min/max settings. I find that the best settings for FG
minimum is whatever the smallest *visible* gap is between objects in your scene
.
The Auto compute function is not particularly good. using it will very often
give you these kinds of artefacts as it compares the scene boundary to the
smallest object size, which does not account for small gaps between closely
placed objects.
a) broken/corrupted geometry (twisted polys for instance). FG/GI is *extremely*
susceptible to dodgy geometry. I have a few tricks to help smell them out in a
GI/FG scene if anyone is interested.
Denis-Jose Francois
AKA
Big Bird
Fallen Angels
www.fallen.nl
Nextlimit SL
www.nextlimit.com
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<DIV><FONT face=Arial size=2>Hi Adam</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>I get that problem regularly. It's not connected
with GI as it can occur when GI is turned off. I believe its to do with one of
two things:</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>b) objects being too close to each other - closer
than the minimum value specified in the FG min/max settings. I find that the
best settings for FG minimum is whatever the smallest *visible* gap is between
objects in your scene.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>The Auto compute function is not particularly good
.
using it will very often give you these kinds of artefacts as it compares the
scene boundary to the smallest object size, which does not account for small
gaps between closely placed objects.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>a) broken/corrupted geometry (twisted polys for
instance). FG/GI is *extremely* susceptible to dodgy geometry. I have a few
tricks to help smell them out in a GI/FG scene if anyone is
interested.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Denis-Jose Francois</FONT></DIV>
<DIV><FONT face=Arial size=2>AKA</FONT></DIV>
<DIV><FONT face=Arial size=2>Big Bird</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Fallen Angels</FONT></DIV>
<DIV><FONT face=Arial size=2><A
href="http://www.fallen.nl">www.fallen.nl</A></FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Nextlimit SL</FONT></DIV>
<DIV><FONT face=Arial size=2><A
href="http://www.nextlimit.com">www.nextlimit.com</A></FONT></DIV>
<DIV><FONT face=Arial size=2><BR> </DIV></FONT></BODY></HTML>
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