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 | | Re: duplicate primitives?
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| (...) Sorry, it was a false alarm. There are no duplicated primitives. AFAIK. Steve (22 years ago, 4-May-02, to lugnet.cad.dat.parts.primitives)
| | | | | duplicate primitives?
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| (...) ????? Just out of curiousity, what are these two? Thanks, Franklin (22 years ago, 3-May-02, to lugnet.cad.dat.parts.primitives)
| | | | | Re: ring 3 to 5
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| (...) I understand that. But the question specified that the number of triangles (actually polygons, but feel free to assume triangles) is fixed. (...) So size of the polygons doesn't matter. Hmm. I'll have to remember that. Steve (22 years ago, 3-May-02, to lugnet.cad.dat.parts.primitives)
| | | | | Re: ring 3 to 5
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| (...) I don't know about all situations (POV, etc), but for real-time rendering in OpenGL, the fastest rendering generally occurs with the fewest number of triangles (assuming that the triangles specify the same final geometry). The fact is that (...) (22 years ago, 3-May-02, to lugnet.cad.dat.parts.primitives)
| | | | | Re: ring 3 to 5
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| (...) Not necessarily. We usually stick with units of 1 because they're the most easily scaled, and most easily implied (ie, if every ring has a n:(n+1) ratio of radii, we don't need to state both radii in the filename). OTOH, boxes have side length (...) (22 years ago, 3-May-02, to lugnet.cad.dat.parts.primitives)
| | | | | Re: ring 3 to 5 [DAT]
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| (...) Very true. In some cases (like the minifig arms), is it better to go with an all-polygon approach, or to use primitives as much as possible and fill in the rest with polygons? (...) When filling in around a hole in a flat surface, one should (...) (22 years ago, 3-May-02, to lugnet.cad.dat.parts.primitives)
| | | | | Re: ring 3 to 5
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| (...) There are some complex curved parts (e.g. most of the minifig headwear, the minifig arm I'm working on right now, some wheels) where some regions can be represented by the regular cyli, disc, cyls, cyls2 primitives, but there will be regions (...) (22 years ago, 3-May-02, to lugnet.cad.dat.parts.primitives)
| | | | | Re: ring 3 to 5
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| (...) Yes, otherwise you get anomalies like this one: (URL) the outer ring of the tile got high-quality-ified but the fill in (non primitive?) circle didn't, leaving gaps. Also the plate below it, since it has stud cutouts, isn't as "round" as the (...) (22 years ago, 3-May-02, to lugnet.cad.dat.parts.primitives)
| | | | | Re: ring 3 to 5
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| (...) True. But it's more than nothing. (...) LDraw (and LEdit, I assume) don't cache any files in memory. Read it (line by line), process it, and throw it away. (...) Reducing the number of files may not be important to rendering speed, but it is (...) (22 years ago, 3-May-02, to lugnet.cad.dat.parts.primitives)
| | | | | Re: ring 3 to 5
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| (...) Actually, for rounded elements, it's almost always[1] preferable to use primitives. That way, programs that do primitives substitution can replace the polygonal primitive with a true round object. -- Steve 1) 'almost always' meaning, 'I can't (...) (22 years ago, 3-May-02, to lugnet.cad.dat.parts.primitives)
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