 | | Re: BFC and Primitives
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Steve Bliss wrote: [snip] (...) Hi, Steve! I wonder if the lack of reviewers has anything to do with not knowing what to do or how to do it. This is exactly my case. I would be willing to help out with the parts reviewing process and help get parts (...) (23 years ago, 14-Mar-02, to lugnet.cad.dev.org.ldraw)
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| | Re: BFC and Primitives
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(...) Actually, checking the BCF-ness of a file is very easy -- open the file in L3Lab, zoom in as necessary, and click the Test | mytest6 menu option. The 'mytest6' option colors all polygons according to their wrapping: Green - front side of (...) (23 years ago, 13-Mar-02, to lugnet.cad.dev.org.ldraw)
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| | Re: BFC and Primitives
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(...) Correct polygon wrapping and CW or CCW orientation are highly desirable. I am just sorry I am not one of the "expert" reviewers that ldraw.org needs. Having more reviewers involved in LDraw tools would be much better. Damien (23 years ago, 12-Mar-02, to lugnet.cad.dev.org.ldraw)
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| | Re: BFC and Primitives
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Since there was never any response from reviewers who affirmed that they would help review these files if I submitted them, I'll hold off on this project for now. Which is too bad -- one of the key parts of BFC compliance is to wrap polygons (...) (23 years ago, 11-Mar-02, to lugnet.cad.dev.org.ldraw)
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| | Re: BFC and Primitives
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(...) This was an issue during the BFC Thread Wars. We figured there were basically two ways to resolve the issue: 1. Make two versions of each primitive, an "outer facing" and an "inner facing". Each BFC'ed part file would need to use the correct (...) (23 years ago, 8-Mar-02, to lugnet.cad.dev.org.ldraw)
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| | Re: BFC and Primitives
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(...) I have a question. Given that the cylinder primitives (among others) are used in situations where they are either the inner surface or the outer, won't adding BFC information to them cause problems? --Travis Cobbs (tcobbs@REMOVE.halibut.com) (23 years ago, 8-Mar-02, to lugnet.cad.dev.org.ldraw)
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| | Re: BFC and Primitives
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(...) You have to calculate a vertex normal in order to do lighting. However, it doesn't have to be the correct normal if your rendering engine supports 2-sided lighting (like OpenGL does). In this case, calculating a normal that points backwards (...) (23 years ago, 8-Mar-02, to lugnet.cad.dev.org.ldraw)
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| | Re: BFC and Primitives
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Also, I believe, that no matter whether you use Back Face Culling or not, Having the vertices wound correctly in the DAT files is still a good thing. In the absence of a standard winding, then Documenting in each part the way the polygons are wound (...) (23 years ago, 8-Mar-02, to lugnet.cad.dev.org.ldraw)
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| | Re: ldraw.org MOTM & SOTM Winners for February 2002 (belated)
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(...) Both winners are very interesting! Congratulations to both. I hope you still receive as many contestants in the future LDraw MOTM and SOTM contests. Fredrik (23 years ago, 7-Mar-02, to lugnet.cad.dev.org.ldraw)
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| | ldraw.org MOTM & SOTM Winners for February 2002 (belated)
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Hello, Sorry about the delay, but I've been sick for the last week. :-( So I apologize to everyone, especially the winners, which are; MOTM: Jeremy Sproat for "Icosahedron", his fascinating exercise in hinged complexity. SOTM: Rick Hallman for (...) (23 years ago, 7-Mar-02, to lugnet.announce, lugnet.cad, lugnet.cad.dev.org.ldraw)
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