 | | Primitives and quads/triangles —Niels Karsdorp
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| | | When I was working on the old Type I trainbase 6 x 12, I also wanted correct wheels for this part. Since I have these, I tried to create the wheel. In my first attempt I used primitives only, but the cones looked horrible when rendered. In my (...) (22 years ago, 15-Oct-02, to lugnet.cad)
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| | | | | Re: Primitives and quads/triangles —Tore Eriksson
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| | | | | (...) I think Lars Hassing has presented that problem since quite some time ago at his L3P page. I suggest you use the 0 IFPOV method and make two versions of the wheel inside the dat file. /Tore (22 years ago, 15-Oct-02, to lugnet.cad)
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| | | | | Re: Primitives and quads/triangles —Travis Cobbs
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| | | | | (...) While your goal is to create something that looks good after L3P has converted it to POV format, bear in mind that it should ideally also look good in the original LDraw format. Using primitives for the cylinders, and not for the cones will (...) (22 years ago, 15-Oct-02, to lugnet.cad)
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| | | | | | | Re: Primitives and quads/triangles —Niels Karsdorp
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| | | | | | (...) The new-style train wheel (4180d.dat) does not use cones, but quads. This causes gaps when rendered (see on my site). Since there was not a single matching cone primitive, I used three. I know about the gaps between these cones. Because of the (...) (22 years ago, 16-Oct-02, to lugnet.cad)
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| | | | | | | | Re: Primitives and quads/triangles —Niels Karsdorp
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| | | | | | (...) I have created a fourth version, using primitives for cylinders and rings. Cones I have created with 16 segment quads for LDraw and a true cone for PovRay (using 0 L3P IFPOV etc.). The results are great! Now I need to find out how type 5 lines (...) (22 years ago, 16-Oct-02, to lugnet.cad)
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| | | | | | | | Re: Primitives and quads/triangles —Travis Cobbs
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| | | | | | (...) Looks good in my program (LDView), once I got the file modified back to its original form due to the posting causing some lines to wrap. Looking at the file, I think it would require new cone primitives to allow the use of cone primitives (...) (22 years ago, 16-Oct-02, to lugnet.cad)
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| | | | | | | | Re: Primitives and quads/triangles —Orion Pobursky
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| | | | | | (...) I use Steve's rotate spreadsheet to figure out what cones/rings I need to fit into a space. Go here to get it: (URL) use the Rings tab. Enter the inner and outer radius and the y height. Then choose a cone primitive and set the scales and (...) (22 years ago, 16-Oct-02, to lugnet.cad)
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| | | | | | | | Re: Primitives and quads/triangles —Steve Bliss
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| | | | | | (...) Geez! I gotta update the Rings tab with more radii. :) Steve (22 years ago, 18-Oct-02, to lugnet.cad)
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| | | | | Re: Primitives and quads/triangles —Lars C. Hassing
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| | | | "Niels Karsdorp" wrote... (...) I will strongly recommend to use primitives whenever possible. Note that L3P v1.3 only supports the 1-4conN.dat primitives, not the 4-4conN.dat. I'll add this to the next version... So, until then use 4 1-4conN.dat (...) (22 years ago, 17-Oct-02, to lugnet.cad)
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| | | | | | Re: Primitives and quads/triangles —Niels Karsdorp
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| | | | (...) Sounds great, the wheels have several unusual sized rings (inner radius 8, outer radius 22 or 28) (inner radius 19, outer radius 22) No I have to use two or three rings, or use quads and POV ring: 0 L3P IFNOTPOV ldraw quads (and optional lines (...) (22 years ago, 17-Oct-02, to lugnet.cad)
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