From:	"Damian Yerrick" <NOSP AT Msnews@pineight.8m.com>
Newsgroups:	comp.os.msdos.djgpp
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Subject:	Re: 3D Problem
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Organization:	Pin Eight Software <http://pineight.8m.com/>
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NNTP-Posting-Date:	Sat, 25 Dec 1999 16:58:30 GMT
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Date:	Sat, 25 Dec 1999 16:58:30 GMT
To:	djgpp AT delorie DOT com
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"Snowman" <idzy AT friko5 DOT onet DOT pl> wrote:
>     After that I use qsort() and sort the QUAD's in the FACE array.
>     Then,with quad3d(..) i put everything to a bitmap and then to screen.
>     First I was just checking the z-coordinate but it worked just partly.
:(
>     So I tried to calculate the distance from the (0,0,0) coordinate to
the
> points (using simply Pythagoras formula)
>     But it was also bad. :(((.

No sorting technique is perfect, but a straight z-coordinate sort
followed by a "Painter's" pass is nearly so. Look for Painter's
algorithm on Google.

--
Damian Yerrick    http://yerricde.tripod.com/
View full .sig:  http://www.rose-hulman.edu/~yerricde/sig.html










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