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- Walter (Jay) Turberville (wturber@primenet.com) wrote:
- : In article <3pjivs$k0h@otis.netspace.net.au> nemesis@netspace.net.au (Gavin Gregson) writes:
- : >From: nemesis@netspace.net.au (Gavin Gregson)
- : >Subject: LightWave 4.0 Anti-Aliasing
- : >Date: 20 May 1995 02:09:00 GMT
-
- : >I got my copy of LW4.0 (Intel) a cuople of days ago and I've noticed that
- : >anti-aliasing is very slow. I'm assuming that this is because LightWave is
- : >essentially rendering the image four or 5 times with seperate anti-aliasing
- : >passes to improve texture resolution (?), but is there any way just to get a
- : >simple anti-alias to smooth out those jaggy edges? The smoothing filter
- : >doesn't really do the job...
-
- : >Gavin
-
- : Are you using adaptive sampling? If not, use it. Also, you can often get
- : very good edges (for video at least) by using Low Anti-Aliasing with a
- : threshold of 20-30. Experiment before rendering out the entire animation.
- : Using Adaptive Sampling and the edge threshold causes a selctive resampling of
- : only the image areas that have higher contrast and are therefore more likely
- : to show jagged (aliased) edges. This is probably a gross oversimplification,
- : but it is the basic idea.
- : _________________________________________________________________
- : Walter (Jay) Turberville |wturber@primenet.com wturber@aol.com
- : Phoenix, AZ |http://www.primenet.com/~wturber
- : ...........................|ftp.primenet.com/users/w/wturber
-
- It might be worth pointing out that many of the demo scenes that come on the
- Lightwave CD-ROM have adaptive sampling turned off, motion blur turned on, or
- soft filter turned on. Any of these will make it appear as if the anti-aliasing
- is taking longer. So Walter's answer is correct and I suspect that many people
- are rendering the demo scenes unchanged before they fully understand the options
- of the Lightwave renderer.
-
- Dave Paige
- davep@access.digex.net
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