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 CAD / Ray-Tracing / 2749
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Subject: 
Re: Fun with LDView Fly Through (A Minifig's Eye View)
Newsgroups: 
lugnet.cad.ray
Date: 
Mon, 19 Mar 2007 19:00:35 GMT
Viewed: 
7397 times
  
(Moved to lugnet.cad.ray.)

In lugnet.cad, Jim DeVona wrote:
   In lugnet.cad, Travis Cobbs wrote:
   The aspect ratio shouldn’t make enough of a difference to put the camera out of the ship. It should only change the cropping. If you have the same aspect ratio, you should should get nearly pixel-perfect alignment of all polygons that don’t involve reflection or refraction. I’m not sure if this is a Mac-specific bug, or if you did something that I haven’t done in my testing on Windows.

You’re right - it does work. I retried it with L3P output and the view is positioned correctly. My previous effort used POV-Ray code from Anton’s converter. That’s not necessarily the reason it didn’t work before, though: it was late and I was tired. At any rate, LDView is certainly exonerated (not that it was accused).


I think Anton’s library isn’t in LDraw units. Since the camera placement is in LDraw units, it won’t work right. If you know the conversion factor, you can probably multiply the camera location by that and have it work.

--Travis



Message has 1 Reply:
  Re: Fun with LDView Fly Through (A Minifig's Eye View)
 
(...) Ah, that's a logical explanation. I just looked in the manual.txt that came with Anton's part library and it does state that it considers a POV-Ray unit 1 millimeter. If one (URL) LDraw unit> is equal to 0.4 mm, then the conversion probably is (...) (18 years ago, 19-Mar-07, to lugnet.cad.ray, FTX)

Message is in Reply To:
  Re: Fun with LDView Fly Through (A Minifig's Eye View)
 
(...) You're right - it does work. I retried it with L3P output and the view is positioned correctly. My previous effort used POV-Ray code from Anton's converter. That's not necessarily the reason it didn't work before, though: it was late and I was (...) (18 years ago, 19-Mar-07, to lugnet.cad, lugnet.cad.dev, lugnet.cad.dev.mac, FTX)

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