Subject:
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Re: RCX simulator ?
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Newsgroups:
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lugnet.robotics
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Date:
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Sat, 14 Sep 2002 05:06:55 GMT
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Original-From:
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Steve Baker <SJBAKER1@AIRMAIL.NETantispam>
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Reply-To:
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(sjbaker1@airmail.)NoSpam(net)
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Viewed:
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1093 times
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Andy Gombos wrote:
> Since when can Pov ray render an image of any useful size in realtime, or
> something approaching realtime?
Yes - it's using ray-traced rendering to get good realism. However, these
days you could do pictrures that are nearly as good with fancy OpenGL rendering
in realtime.
A modern 3D graphics card can easily draw at least a hundred thousand polygons
in "realtime" - so presuming you could model most Lego parts in about a hundred
polygons, you could draw ~1000 Lego parts in realtime...that should have most
Mindstorms robots covered.
> Very realistic, and realtime. However, it used OpenGL for
> rendering, and was a polygon based gradiant shaded method (Gurad? I haven't
> flipped through my 3d graphics papers in a while).
Gouraud - it's the shading technique where the graphics system computes the
effect of lighting on the colour of each vertex of every polygon - and then
interpolates between them to get the colour at every pixel. It's not as
realistic as ray-tracing - where you compute a unique lighting solution at
every pixel...but it's pretty good.
----------------------------- Steve Baker -------------------------------
Mail : <sjbaker1@airmail.net> WorkMail: <sjbaker@link.com>
URLs : http://www.sjbaker.org
http://plib.sf.net http://tuxaqfh.sf.net http://tuxkart.sf.net
http://prettypoly.sf.net http://freeglut.sf.net
http://toobular.sf.net http://lodestone.sf.net
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Message is in Reply To:
 | | Re: RCX simulator ?
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| Since when can Pov ray render an image of any useful size in realtime, or something approaching realtime? I haven't tested on my XP1600+, but my Duron 800 took a few seconds to render a 640 x 480 image - the minimum I consider useful for determining (...) (22 years ago, 13-Sep-02, to lugnet.robotics)
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