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TIGSource ForumsDeveloperTechnical (Moderator: ThemsAllTook)Bezier surface implementation
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Author Topic: Bezier surface implementation  (Read 696 times)
diegzumillo
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« on: September 15, 2017, 04:39:23 PM »
Has anyone implemented this? It seems pretty straight forward from its Wikipedia page but for some reason my implementation doesn't work. The points are all deformed and don't stretch all the way to the corners.

I suspect my naive implementation of the Bernstein polynomials is the problem. In theory it all makes sense but when it comes to numerical evaluation there's always a catch, like the order of operations. But I really have no idea.

Edit: Interesting fact. If I move ALL control points the generated surface seems to be attracted to a fixed point in space
« Last Edit: September 15, 2017, 04:50:45 PM by diegzumillo » Logged
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diegzumillo
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« Reply #1 on: September 15, 2017, 06:37:44 PM »
Ah, nevermind. I was just being dumb. Forgot to subtract 1 from a variable  Facepalm
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