Ray-Tracing : 941


CAD / Ray-Tracing / 941	940 \| 942

Subject:	Re: Datsville continuation - more ideas
Newsgroups:	lugnet.cad, lugnet.cad.dev, lugnet.cad.ray
Date:	Mon, 13 Aug 2001 06:17:11 GMT
Viewed:	38 times

In lugnet.cad, Tore Eriksson writes: > Here's a first working version of what I was thinking about: > http://home.swipnet.se/simlego/ldraw/ldboxer.zip > > The *.box files have to be in the P, Parts, Models, or LDraw BaseDirectory. > The boxes.lst file has to be in the LDraw BaseDirectory. > > Will it make life easier for the POV-Ray engine? > /Tore Doesn't POVray do this inately? After all, at some point POVray has to decide which information it will display, and which information it will not display. Wouldn't it speed up the rendering process even more if all LDraw models were turned into hollow shells? Ok, I haven't really experimented very much with omitting polygons from LDraw models (I said I would in previous posts... but...). But, after all invisible lines/boxes have been deleted, how many polygons are left over in comparison to those in, say, Unreal or Quake? An interesting question that gets me thinking... Oh, this is actually just becoming a continuation of a thread. I suggested this in a previous <A HREF="http://news.lugnet.com/cad/dat/parts/?n=1298">post</A>, and Steve Bliss gave an intelligent suggestion as an answer in this <A HREF="http://news.lugnet.com/cad/dev/?n=4787">post</A>. It seems to me this topic has been well covered before. What has been accomplished in this area so far, and what are your plans for future usage and implementation? I could think of a myriad of uses. It could open the door to areas where processor limitations existed before. And, this doesn't just center on and around, exclusively, POVray. I can think of another <A HREF="http://news.lugnet.com/cad/ray/?n=596">thread</A> that would achieve similar results in "simplification". Instead of replacing the brick with a box.dat part, you could replace it with a POVray primitive. Sorry to be redundant. Mike

Message has 1 Reply:

		Re: Datsville continuation - more ideas
(...) I don't know. That's why I asked. :o) I will try to render a lot of ttore.dat's in a model and compare the time used to the time used to render the same model with box replacements. (...) Yes, but how do we accomplish that still avoiding bad (...) (23 years ago, 13-Aug-01, to lugnet.cad, lugnet.cad.dev, lugnet.cad.ray)

Message is in Reply To:

		Re: Datsville continuation - more ideas
Here's a first working version of what I was thinking about: (URL) *.box files have to be in the P, Parts, Models, or LDraw BaseDirectory. The boxes.lst file has to be in the LDraw BaseDirectory. Will it make life easier for the POV-Ray engine? (...) (23 years ago, 13-Aug-01, to lugnet.cad, lugnet.cad.dev, lugnet.cad.ray)

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