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In lugnet.cad.dat.parts.primitives, Ross Crawford writes:
> Sure, reducing polygon count is good, but it doesn't necessarily require a
> new primitive or sub-part to do that. In the case of this new ring
> primitive, unless it's needed by several parts, it's probably better to have
> it in-line in the part(s). The solution of using the existing ring
> primitives is an option, to avoid having to calculate the ring co-ordinates,
> but is probably not the preferred option.
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 think of any exceptions, but I'll allow
for the possibility'. :)
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Message has 2 Replies:
 | | 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 (...) (23 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 (...) (23 years ago, 3-May-02, to lugnet.cad.dat.parts.primitives)
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Message is in Reply To:
| | Re: ring 3 to 5
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| (...) However, when deciding whether or not to in-line sub-parts, reducing polygon count isn't a consideration. Any other advantage, small or not, should be maximised. (...) Whether they do or not, there's still extra time spent identifying the (...) (23 years ago, 3-May-02, to lugnet.cad.dat.parts.primitives)
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