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In lugnet.cad.dat.parts.primitives, Steve Bliss writes:
> Here's a question: for a given amount of area, and a set number of polygons,
> is it better (ie, faster to render) to have polygons that are all about the
> same size? Or would it be better to have some large polygons, and some
> small polygons? A few large, and a lot of small? Hmmm.
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 with most LDraw models, LDView is completely limited by
geometry performance. This is why on a reasonbly fast 3D accelerator a mid
to large size model will render at pretty much the same frame rate no matter
what the resolution is.
--Travis Cobbs (tcobbs@REMOVE.halibut.com)
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Message has 1 Reply:
 | | 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 (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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| (...) 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 (...) (23 years ago, 3-May-02, to lugnet.cad.dat.parts.primitives)
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