 | | Re: Transparent Black in POV-Ray
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(...) how about some pov-code snippets? (please don't post your 2556 pieces model - a trans black 1x1 brick will do the job) w. (18 years ago, 11-Mar-07, to lugnet.cad.ray)
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| | Transparent Black in POV-Ray
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Every time I render a model in POV-Ray the Transparent Black colored pieces always come out solid. How do I fix this? (18 years ago, 11-Mar-07, to lugnet.cad.ray)
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| | Reminder: 2007 Steering Committee election closing in a week
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Hi folks, As outlined here: (URL) election will close in a week, at 2359 EDT (GMT -0500), March 15, 2007. Willy Tschager On behalf of the LDraw.org Steering Committee (18 years ago, 8-Mar-07, to lugnet.cad, lugnet.cad.dev.org.ldraw, lugnet.announce)
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| | Bricksmith 1.6
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(2 URLs) Bricksmith 1.6> adds the following features: Part Browser can be configured as a separate window Export Part List feature Background color preference Always switches to perspective mode when not drawing a head-on view Can insert raw (...) (18 years ago, 8-Mar-07, to lugnet.announce, lugnet.cad, lugnet.cad.dev.mac, FTX)
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| | Re: Parts Releases and the CA
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(...) I am pleased to report that Luis E. Fernandez has now made contact and affirmed the Contributor Agreement - thanks Luis. Updated list : Name (number of parts authored) Chris Alano (5) Eric D'Aragon (1) Howard Lande (1) Kevin Bane (8) Tim (...) (18 years ago, 7-Mar-07, to lugnet.cad.dev.org.ldraw)
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| | Re: Part Authors: opinions sought on T-Junctions
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(...) Yes, that's true, but in such cases there are generally lines separating the polygons (parts), and people expect to see those in the render. The problem we're talking about here is artifacts showing up on the faces of individual parts where (...) (18 years ago, 7-Mar-07, to lugnet.cad.dat.parts, FTX)
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| | Re: Part Authors: opinions sought on T-Junctions [DAT]
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Something else to consider is that T junctions will often appear in model files themselves between two parts as shown in this simple example. 0 Model exported from LeoCAD 0 Original name: 1 4 20.00 -24.00 30.00 1.00 0.00 0.00 0.00 1.00 0.00 0.00 (...) (18 years ago, 7-Mar-07, to lugnet.cad.dat.parts, FTX)
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| | Minor Bitsticker update
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(...) I realized that Bitsticker would generate really long output filenames resembling the path to the original image when used with browsers like Internet Explorer 6. I've fixed it so that the output filename should be derived only from the (...) (18 years ago, 7-Mar-07, to lugnet.cad, FTX)
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| | Re: Part Authors: opinions sought on T-Junctions
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(...) No there's not. I'm a physicist... not an engineer ;) Tim (18 years ago, 6-Mar-07, to lugnet.cad.dat.parts, FTX)
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| | Re: Part Authors: opinions sought on T-Junctions
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(...) blah, blah, blah, snip Oops, I was trying to be all ironical in a geeky math sorta way. But apparently I failed. Guess I shoulda used more winkies... Do people still use winkies? Or have they gone obsolete like ASCII art? Anyhow, sorry about (...) (18 years ago, 6-Mar-07, to lugnet.cad.dat.parts, FTX)
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| | Re: Part Authors: opinions sought on T-Junctions
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(...) There is, however, such a thing as an impractical problem ;) ROSCO (18 years ago, 6-Mar-07, to lugnet.cad.dat.parts, FTX)
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| | Re: Part Authors: opinions sought on T-Junctions
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(...) Well actually what txt2dat does is a slightly different problem - it has a few simple closed loops and has to triangulate the complex polygons bounded by them (it uses the excellent (URL) triangle library> to do that). Renderers on the other (...) (18 years ago, 6-Mar-07, to lugnet.cad.dat.parts, FTX)
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| | Re: Part Authors: opinions sought on T-Junctions
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(...) OK, I stand corrected. Technically a program can fix things a load time. However, you might be surprised at how long it takes. It's "only" O(n^2), but each iteration is slow. You have to search the current line segment against all other line (...) (18 years ago, 6-Mar-07, to lugnet.cad.dat.parts, FTX)
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| | Re: Part Authors: opinions sought on T-Junctions
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(...) Well... Technically it is true. The rendering program ought to be able to scan all the points in each part and look for intersections with every edge in the part. Then break up the offensive T-joins automagically and render it perfectly. (...) (18 years ago, 6-Mar-07, to lugnet.cad.dat.parts, FTX)
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| | Re: Part Authors: opinions sought on T-Junctions
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(...) Arguably it's probably the algorithms and/or numerical proccessing that are at fault. Certainly when you design scientific code algorithms they should usually be created in such a way that it minimises numerical error. Of course I don't expect (...) (18 years ago, 6-Mar-07, to lugnet.cad.dat.parts, FTX)
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| | Re: Part Authors: opinions sought on T-Junctions
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(...) I'd really appreciate it if you didn't blame it on the rendering programs. There's really nothing that they can do to fix the problem. I can understand why you might feel that they are at fault, but it really isn't true. As such, you might (...) (18 years ago, 6-Mar-07, to lugnet.cad.dat.parts, FTX)
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| | Re: Part Authors: opinions sought on T-Junctions
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(...) I try to minimise file size whenever possible myself and have nothing against T juctions. While the gaps can be annoying I feel that they are a fault of the rendering program rather than the parts. (18 years ago, 4-Mar-07, to lugnet.cad.dat.parts, FTX)
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| | Re: Introducing RACHAL - the Raytracing Challenge
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Well I submitted my entry: (URL) It was pretty fun, and I got to teach myself a few more POV tricks (like loops mainly). Nothing was changed in the MPD and I used L3PAO to convert to POVRAY and then I used Mesh-Enhancer on the minifig's hair to (...) (18 years ago, 6-Mar-07, to lugnet.cad.dev.org.ldraw)
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| | Re: Naming of Parts (esp. Wheels & Tires)
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El-Lutzo schrieb: (...) I am also often confused by the naming. For that I have started to have my own translation table for which wheel fits to which tyre. The problem at this point is, that there are many official parts out and I think it might (...) (18 years ago, 5-Mar-07, to lugnet.cad.dat.parts)
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| | Re: Request for votes in LDraw polls
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(...) jeroen, you've got mail. bye, w. (18 years ago, 5-Mar-07, to lugnet.cad.dev.org.ldraw)
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