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Re: [ft-devel] Fast bisecting BBox_Cubic_Check


From: Werner LEMBERG
Subject: Re: [ft-devel] Fast bisecting BBox_Cubic_Check
Date: Fri, 09 Aug 2013 21:49:39 +0200 (CEST)

> I think I am back online I think.

Welcome back :-)

> I want to wrap up the new implementation of BBox_Cubic_Check. As we
> discussed, the integer Bezier split algorithms are not accurate,
> with the lowest two bits being random.  Freetype lives with this.
> So I wonder what's the expectations for the BBox calculations?  Do
> we really need accuracy better than 2 bits?

I don't think so.  However, I consider it problematic that your
code reduces the allowed bbox size...


    Werner



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