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The image I posted in p.b.i now is an animation. However, I noticed the
shadows behave quite strange. I believe it is because of the radiosity?
Do you know how to fix/minimize it?
Fernando.
Post a reply to this message
Attachments:
Download 'marbles01.m1v.mpg' (326 KB)
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> shadows behave quite strange. I believe it is because of the radiosity?
Yup.
> Do you know how to fix/minimize it?
I've never tried it myself, but give this a shot: set up your camera for a
still frame, and strategically place mirrors (perhaps spherical ones) in
places that don't block your view of the important parts of the image, but
that help you to see underneath objects and such that you couldn't
otherwise. Try to get a view in which you can see everything. Then run
reasonably high quality radiosity on it, and save the settings.
Then remove the mirrors and load the saved settings for each frame in your
animation.
Just an idea.
- Slime
[ http://www.slimeland.com/ ]
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> set up your camera for a still frame, and strategically place
> mirrors (perhaps spherical ones) in places that don't block
> your view of the important parts of the image, but that help
> you to see underneath objects and such that you couldn't
> otherwise. Try to get a view in which you can see everything.
> Then run reasonably high quality radiosity on it, and save
> the settings.
I don't understand this idea... but I'd suggest much higher rad settings,
because the sampling method is like "crand" in textures so it's random and
dependant on camera location.. Nothing to do about that..
But .... if a saved rad_file weren't camera dependant (I think it is) one
could calculate the rad once and for all.. As long as objects or lights
won't move, this would be a great trick.. I don't think it'll work (?)
Anyway, it looks really good!! Except the flickering.
Regards,
Hugo
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> But .... if a saved rad_file weren't camera dependant (I think it is) one
> could calculate the rad once and for all.
That's the problem I was trying to solve with mirrors - if you place enough
mirrors that you can see key parts of the image, then the radiosity data
isn't entirely dependent on the position of the camera; it should look
decent from other angles, theoretically.
- Slime
[ http://www.slimeland.com/ ]
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But them files will be HUGE! Even if it wouldn't work properly.
--
Apache
POV-Ray Cloth experiments: http://geitenkaas.dns2go.com/experiments/
Email: apa### [at] yahoo com
ICQ: 146690431
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> But .... if a saved rad_file weren't camera dependant (I think it is) one
> could calculate the rad once and for all.. As long as objects or lights
> won't move, this would be a great trick.. I don't think it'll work (?)
It works.
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Can you show us?
--
Apache
POV-Ray Cloth experiments: http://geitenkaas.dns2go.com/experiments/
Email: apa### [at] yahoocom
ICQ: 146690431
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"Hugo" <hua### [at] post3teledk> wrote in message
news:3d020bc9@news.povray.org...
> But .... if a saved rad_file weren't camera dependant (I think it is) one
> could calculate the rad once and for all.. As long as objects or lights
> won't move, this would be a great trick.. I don't think it'll work (?)
<lurk mode = off>
I'm not sure how the radiosity in POV-ray works, but "normal" radiosity
methods aren't camera dependant. As long as the only thing moving is the
camera, and all objects are stationary, it's easy to do real time radiosity
animation. So it should work.
/ Martin
<lurk mode = on>
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I wanted to learn a bit more about how radiosity works so I found
http://www.cs.bc.edu/research/bach/bach98.php on google.
--
Apache
POV-Ray Cloth experiments: http://geitenkaas.dns2go.com/experiments/
Email: apa### [at] yahoocom
ICQ: 146690431
Post a reply to this message
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From: Mark Hanford
Subject: Re: animation with radiosity (Divx4 461kbu)
Date: 15 Jul 2002 11:58:22
Message: <3d32f11e@news.povray.org>
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Is this the same problem?
The shadows seem to dissapear, watch around the red box...
--
Mark Hanford
http://www.mrhanford.com/povray
"Fernando Gonzalez del Cueto" <fcu### [at] yahoocom> wrote in message
news:3d010ca9@news.povray.org...
> The image I posted in p.b.i now is an animation. However, I noticed
the
> shadows behave quite strange. I believe it is because of the
radiosity?
>
> Do you know how to fix/minimize it?
>
> Fernando.
>
>
>
Post a reply to this message
Attachments:
Download 'servers.avi.dat' (461 KB)
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