Subject:
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Re: Performance Improvement
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Newsgroups:
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lugnet.cad.dev
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Date:
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Mon, 17 Apr 2000 16:17:54 GMT
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Reply-To:
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RUI.MARTINS@LINK.PTspamless
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Viewed:
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598 times
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On Sat, 15 Apr 2000, Damien Duquennoy wrote:
> Well, i think it's also possible to substitue some quads to the triangles.
> But i've made some tests with l3lab and there is no differences on rendering
> time between the triangle version and quad version of my disc.
>
> Does someone know how quads are drawing by rendering programs : as a real
> quad, or as two triangles ?
Usually software Renderers internally use only triangles, because it simplifies
the rendering algorythm, but in an hardware renderer, you can't be sure, it
depends much on the hardware architecture. There a few hardware renderers which
also only use triangles (simplifies data structures) but there are some which
also support quads or N-gons in hardware, also some beeing faster using N-gons
than a bunch of triangles in replacement.
So the most correct use is:
- use triangles to speed up (if they model is used offen (ex: discs in studs)
- use quads when it simplifies your building - don't abuse triangles.
It's kind of a duality !
Just don't favor one too much, keep a balence.
See ya.
Rui Martins
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Message is in Reply To:
 | | Re: Performance Improvement
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| Hi Well, i think it's also possible to substitue some quads to the triangles. But i've made some tests with l3lab and there is no differences on rendering time between the triangle version and quad version of my disc. Does someone know how quads are (...) (24 years ago, 15-Apr-00, to lugnet.cad.dev)
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