 | | 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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| | ldraw.org MOTM voting MISTAKE - read this if you've voted.
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Whoops, I made a mistake. Somehow, I managed to put Anders Isaksson's scene entry into the model category. Then, because I was sick, I didn't check email which would have allowed me to catch the mistake earlier. (why do things like this happen at (...) (23 years ago, 7-Mar-02, to lugnet.cad, lugnet.cad.dev.org.ldraw)
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| | On Hiatus
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Hi everyone - I just thought I'd post to say that I am leaving LUGNET for a while. I never understood why people leave this place to take breathers until this week, but believe me when I say I need a BIG one. The problems, the garbage here is just (...) (23 years ago, 7-Mar-02, to lugnet.people, lugnet.cad.dev.org.ldraw, lugnet.trains.org.niltc) !!
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| | Re: BFC and Primitives
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(...) rights to access the faq directory. :\ (...) Could you, would you, post the text from this item, or maybe even email me the FAQ document? I'd appreciate it. Steve (23 years ago, 7-Mar-02, to lugnet.cad.dev.org.ldraw)
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| | Re: BFC and Primitives
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Hi. Damien Guichard wrote: > I quote Michael Lachmann, from MLCad file ReleaseNotes.txt: > > Beginning with release V2.00 MLCad does no longer support BFC. > However the metacommand itself is still supported but has no effect on > drawing (BFC - (...) (23 years ago, 7-Mar-02, to lugnet.cad.dev.org.ldraw)
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| | Re: BFC and Primitives
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I quote Michael Lachmann, from MLCad file ReleaseNotes.txt: Beginning with release V2.00 MLCad does no longer support BFC. However the metacommand itself is still supported but has no effect on drawing (BFC - BackFaceCulling was an experiment on (...) (23 years ago, 7-Mar-02, to lugnet.cad.dev.org.ldraw)
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| | Re: BFC and Primitives
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(...) Some of those tools ( I know MLCad can use them ) already support them. On top of that those are not the only tools around! (...) This is just not true. In my program it make a big deal. In general, anytime you can quickly narrow down the (...) (23 years ago, 6-Mar-02, to lugnet.cad.dev.org.ldraw)
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| | Re: BFC and Primitives
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(...) IMHO, i don't consider BFC statements as an important ldraw issue, for following reasons: 1. Popular tools do not use these statements (including LDraw, MLCad, LDView and L3P & POV-ray). L3Lab use them but L3Lab is superceded by LDView both in (...) (23 years ago, 6-Mar-02, to lugnet.cad.dev.org.ldraw)
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| | Re: bug report - "file check" program @ LCAD parts tracker
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(...) I tried using Netscape 6, and I couldn't duplicate your problem. I'll keep my eye on this. Steve (23 years ago, 6-Mar-02, to lugnet.cad.dev.org.ldraw)
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| | BFC and Primitives
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Dear All (but mostly PT Reviewers), I'd like to update all the current primitive files to be BFC compliant. This wouldn't be a huge task, at least for the geometric primitives (boxes, circles, discs, rings, cones, cylinders, and torii). But when I (...) (23 years ago, 6-Mar-02, to lugnet.cad.dev.org.ldraw)
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| | Re: bug report - "file check" program @ LCAD parts tracker
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Oops, it happened again. I was uploading s\x460s02, and I forgot to click on the "parts\s" checkbox, and it gave me a blank screen again. So, the two conditions I've discovered that will render as blank screens in Netscape are: 1) problem with "0 (...) (23 years ago, 5-Mar-02, to lugnet.cad.dev.org.ldraw)
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