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Article #1886graduated triangle fills?
From: Nigel O'Brian
Date: Tue, 08 Sep 1992 05:10
Date: Tue, 08 Sep 1992 05:10
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This might be a bit optimistic, but does anyone have a routine to do a graduated grayscale fill inside a triangular path? Something like x1 y1 x2 y2 x3 y3 gray1 gray2 gray3 gradfill producing a triangle with specified vertices, and a more or less linearly varying gray taking the specified values at the vertices. I want it for 3D shading. Something recursive should work -- maybe generating 4 invocations corresponding to the subdivision of the triangle given by joining mid-points of sides. Depth can be controlled by maximum variation of grays at the vertices. Perhaps such a routine would be of general interest? -- ================================================================= Nigel O'Brian obrian_n@maths.su.oz.au School of Mathematics nigel@frog.maths.su.oz University of Sydney Ph: (02)-692-4083 Sydney NSW 2006, Australia FAX: (02)-692-4534
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Newsgroups: comp.lang.postscript Path: arc1-ca.pugleaf.net!sparky!uunet!munnari.oz.au!metro!metro.ucc.su.oz.au!nigel From: nigel@maths.su.oz.au (Nigel O'Brian) Subject: graduated triangle fills? Message-ID: <NIGEL.92Sep8151038@frog.maths.su.oz.au> Sender: news@ucc.su.OZ.AU Nntp-Posting-Host: frog.maths.su.oz.au Organization: School of Mathematics, University of Sydney Date: Tue, 8 Sep 1992 05:10:38 GMT Lines: 30