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Re: Decreasing poly count on models
avatarApril 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 Nicola1196February 14, 2013 08:17AM
Re: Decreasing poly count on models Travis Cobbs373February 14, 2013 09:06AM
Re: Decreasing poly count on models Roland Melkert345February 14, 2013 10:18AM
Re: Decreasing poly count on models Nicola390February 15, 2013 12:25AM
Re: Decreasing poly count on models Tim Gould327February 14, 2013 12:34PM
Re: Decreasing poly count on models Michael Horvath378February 26, 2013 04:28AM
Re: Decreasing poly count on models Vincent Majorczyk356April 11, 2013 09:56AM
Re: Decreasing poly count on models Nicola313April 11, 2013 10:11AM
Re: Decreasing poly count on models Tim Gould309April 11, 2013 12:35PM
Re: Decreasing poly count on models Ben Supnik293April 11, 2013 01:51PM
Re: Decreasing poly count on models Nicola281April 11, 2013 01:57PM
Re: Decreasing poly count on models Tim Gould310April 11, 2013 02:18PM
Re: Decreasing poly count on models Nicola286April 12, 2013 05:19AM
Re: Decreasing poly count on models Ben Supnik321April 12, 2013 10:38AM
Re: Decreasing poly count on models Paul Griffin291April 12, 2013 10:12PM
Re: Decreasing poly count on models Steffen136November 23, 2013 04:14AM
Re: Decreasing poly count on models Michael Heidemann138November 23, 2013 04:39AM
Re: Decreasing poly count on models Philippe Hurbain145November 24, 2013 07:57AM
Re: Decreasing poly count on models Michael Heidemann234November 24, 2013 08:06AM
Re: Decreasing poly count on models Nicola342April 24, 2013 05:35AM
Re: Decreasing poly count on models Ben Supnik338April 24, 2013 09:16PM
Re: Decreasing poly count on models Nicola382April 25, 2013 01:05AM
Re: Decreasing poly count on models Michael Horvath223October 21, 2013 06:48PM
Re: Decreasing poly count on models Antonio Cort├ęs Carrillo171November 23, 2013 02:14AM
Re: Decreasing poly count on models Michael Heidemann160November 23, 2013 02:26AM



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