Pixie / Bugs / #101 GeneralPolygons with holes are corrupted.

#101 GeneralPolygons with holes are corrupted.

Status: open-accepted

Owner: nobody

Labels: None

Priority: 6

Updated: 2008-10-19

Created: 2008-10-17

Creator: Adam Buchbinder

Private: No

Render the attached RIB. The result should be two white five-pointed stars, each with an upside-down five-pointed star inside it. The left figure is a black star on top of a white star; the right figure is a white star with a hole cut in it. The right star renders improperly.

I believe that the RIB's geometry is correct, as it renders correctly in Aqsis, BMRT and 3Delight. The model was adapted from the examples to "Renderman for Beginners", at http://smartcg.com/tech/cg/books/RfB/download/contents/Ch04_GeomPrim/Fig_4.19/index.html.

I'm running Pixie SVN (r1169) on Ubuntu Hardy.

Discussion

Adam Buchbinder - 2008-10-17

RIB

star-in-star.rib

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Adam Buchbinder - 2008-10-17

Scene as rendered by r1169.

star-in-star.pixie.png

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Adam Buchbinder - 2008-10-17

priority: 5 --> 6
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Okan Arikan - 2008-10-19

Yes, there seems to be a bug in triangulation of polygons with holes. Will solve it soon.

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Okan Arikan - 2008-10-19

status: open --> open-accepted
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GeneralPolygons with holes are corrupted.

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#101 GeneralPolygons with holes are corrupted.

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