 | | | bsp tweaking and volume effects | bsp tweaking and volume effects 2005-07-06 - By peterb
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this is a guess,
but i would expect it not to matter.
as far as I know, bsp is for storing geometry / triangles in memory, and
looking those triangles up when shooting rays.
if your geometry is as simple as you suggest, even "bad" bsp settings shouldnt
slow it down.
(but I might be completely wrong)
I would look to the marching step settings and AA settings to speed things up.
also, is you big volume light an area light?
I know nothing about binary space partitioning so this is a stab in the dark
really..... but could tweaking the bsp settings have much effect on volume
effects? I've nothing in my scene bar a semi transparent plate and a big volume
light casting shadows - stained glass window style. I've got to set the ray
-marching steps quite low but it's taking a couple of hours plus per frame which
is unacceptable so...
Any ideas?
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<DIV><FONT face=Arial size=2>this is a guess,</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>but i would expect it not to matter. </FONT></DIV>
<DIV><FONT face=Arial size=2>as far as I know, bsp is for storing geometry /
triangles in memory, and looking those triangles up when shooting
rays.</FONT></DIV>
<DIV><FONT face=Arial size=2>if your geometry is as simple as you suggest, even
"bad" bsp settings shouldnt slow it down.</FONT></DIV>
<DIV><FONT face=Arial size=2>(but I might be completely wrong)</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>I would look to the marching step settings and AA
settings to speed things up.</FONT></DIV>
<DIV><FONT face=Arial size=2>also, is you big volume light an area
light?</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<BLOCKQUOTE
style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT:
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<DIV class=Section1>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">I know nothing about binary space
partitioning so this is a stab in the dark really..... but could tweaking the
bsp settings have much effect on volume effects? I've nothing in my scene bar
a semi transparent plate and a big volume light casting shadows - stained
glass window style. I've got to set the ray-marching steps quite low but it's
taking a couple of hours plus per frame which is unacceptable
so...<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT><
/P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Any
ideas?<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"><o:p></o:p></SPAN></FONT></P><
/DIV></BLOCKQUOTE></BODY></HTML>
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