 | | Re: The use of type 5 lines for smoothing of objects.
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On May 08 Martijn Zwaal wrote in lugnet.cad.dev: (...) Hi Martijn, that's a brilliant idea!! I have always regarded optional lines as only a mean for drawing the outline/contour on curved surfaces. But optional lines are actually a valuable (...) (22 years ago, 22-May-02, to lugnet.cad.dev)
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| | Re: The use of type 5 lines for smoothing of objects.
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(...) I only use the actual (un-normalized) normals of the faces adjacent to the type 5 line. It's a little more complicated, because when a single point has multiple type 5 lines radiating out from it, the surface normal I compute at that point (...) (22 years ago, 21-May-02, to lugnet.cad.dev)
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| | Re: The use of type 5 lines for smoothing of objects.
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(...) If you ignore the type 5 control points, what points do you use to generate the cross products? I would think to generate "fair" lengthy vectors you'd have to use the center of gravity point for the adjacent quads or triangles. Otherwise you (...) (22 years ago, 21-May-02, to lugnet.cad.dev)
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| | Re: The use of type 5 lines for smoothing of objects.
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(...) I think I listed most of them, but here are the ones I can think of: Calculated per part, not per dat file. Only calculated when an edge is an exact match with a type 5 line; this requires some extra work to accomplish. Completely ignore the (...) (22 years ago, 20-May-02, to lugnet.cad.dev)
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| | Re: The use of type 5 lines for smoothing of objects.
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(...) (with (...) the (...) helmet, (...) entirely (...) I was able to reproduce the exact glitches you saw. They are due to round off errors in the coordinates. Your map sees a difference e.g. between point (1.9999,0.0000,0.0000) and point (...) (22 years ago, 20-May-02, to lugnet.cad.dev)
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| | Out of pocket this week
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Hi everyone, I just wanted to let everyone know that I'm going to be mostly offline this week. I'll probably check my email daily, and try to keep up with lugnet.cad traffic, but I'm very unlikely to respond to any Parts Tracker or LDraw.org (...) (22 years ago, 20-May-02, to lugnet.cad.dev.org.ldraw)
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| | Re: Part request
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(...) Only if the cylinders are the same diameter, and are intersecting cleanly - perpendicular to each other, and their axes are intersecting. In this case, use 2-4cyls.dat (or is that 2-4cyls2.dat?) to model the intersection. Steve (22 years ago, 20-May-02, to lugnet.cad.dev, lugnet.cad.dat.parts)
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| | Re: The use of type 5 lines for smoothing of objects.
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(...) Well, I added an initial go at Martijn's suggested algorithm to LDView (with some modifications here and there), and the results look extremely promising. Here is a sample: (URL) that this was rendered with Primitive Substitution disabled, so (...) (22 years ago, 20-May-02, to lugnet.cad.dev)
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| | LDraw.org at BrickFest 2002
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Hi Everyone!! I will be giving at least one presentation at BrickFest 2002, Introduction to 3D LEGO-Style Modeling with LDraw Tools. This is a beginner session for all of you who are having trouble familiarizing yourself with making your own models (...) (22 years ago, 20-May-02, to lugnet.cad.dev.org.ldraw, lugnet.events.brickfest)
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| | Updated and New Rebel Pilot Torso Patterns (Star Wars)
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I just posted a revised DAT file for the "default" Rebel pilot torso pattern: "(URL) official DAT file has the wrong color code for the chestplate (unless my copy somehow got corrupted). The DAT code uses color-382 (Tan/Khaki), and the comment above (...) (22 years ago, 20-May-02, to lugnet.cad.dev)
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