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Re: Decreasing poly count on models
April 11, 2013 10:11AM
That's an interesting algorithm, i tried to come up with something similar..
So if i understood correctly, basically you sit on every face of the model, and look up the normal. if you see any "blue", that means the face is also visible from the "blue" (so must be kept), otherwise if you see only white, you can conclude you're an inner face and can be removed.
One thing that came in mind is how you compute the "point of view" mesh. In the simplest case, it could be a sphere enclosing the whole mesh, am i right? But i feel that it's more complex than that. If you have a convex model, there can be points that are never visible from the "outside sphere", but are still on the surface, and you could possibly see it "navigating inside" the model.

The only other problem is performances (it should render a frame for each face in the model), but of course the whole algorithm can be precomputed beforehand so not really a big deal.

Have you implemented anything yet ?
SubjectAuthorViewsPosted
Decreasing poly count on models Nicola1004February 14, 2013 08:17AM
Re: Decreasing poly count on models Travis Cobbs320February 14, 2013 09:06AM
Re: Decreasing poly count on models Roland Melkert294February 14, 2013 10:18AM
Re: Decreasing poly count on models Nicola321February 15, 2013 12:25AM
Re: Decreasing poly count on models Tim Gould271February 14, 2013 12:34PM
Re: Decreasing poly count on models Michael Horvath319February 26, 2013 04:28AM
Re: Decreasing poly count on models Vincent Majorczyk288April 11, 2013 09:56AM
Re: Decreasing poly count on models Nicola256April 11, 2013 10:11AM
Re: Decreasing poly count on models Tim Gould263April 11, 2013 12:35PM
Re: Decreasing poly count on models Ben Supnik243April 11, 2013 01:51PM
Re: Decreasing poly count on models Nicola225April 11, 2013 01:57PM
Re: Decreasing poly count on models Tim Gould256April 11, 2013 02:18PM
Re: Decreasing poly count on models Nicola225April 12, 2013 05:19AM
Re: Decreasing poly count on models Ben Supnik268April 12, 2013 10:38AM
Re: Decreasing poly count on models Paul Griffin242April 12, 2013 10:12PM
Re: Decreasing poly count on models Steffen85November 23, 2013 04:14AM
Re: Decreasing poly count on models Michael Heidemann88November 23, 2013 04:39AM
Re: Decreasing poly count on models Philippe Hurbain91November 24, 2013 07:57AM
Re: Decreasing poly count on models Michael Heidemann155November 24, 2013 08:06AM
Re: Decreasing poly count on models Nicola277April 24, 2013 05:35AM
Re: Decreasing poly count on models Ben Supnik277April 24, 2013 09:16PM
Re: Decreasing poly count on models Nicola322April 25, 2013 01:05AM
Re: Decreasing poly count on models Michael Horvath166October 21, 2013 06:48PM
Re: Decreasing poly count on models Antonio Cort├ęs Carrillo112November 23, 2013 02:14AM
Re: Decreasing poly count on models Michael Heidemann116November 23, 2013 02:26AM



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