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 CAD / Ray-Tracing / 2050
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Subject: 
LPub/LSynth/Mega-POV Question
Newsgroups: 
lugnet.cad.ray
Date: 
Tue, 6 Jan 2004 23:27:34 GMT
Viewed: 
1704 times
  
Hello,

I’m doing some rendering for Building Instructions, and am coming across a
little problem that I am not quite sure how to resolve. Here is the big picture:
I am doing extremely high quality BI’s, using LPub, which means that the
resolution is very large. Two of the features I added are LSynth generated parts
(mainly electrical wires -- these are MindStorms BI’s) and outlining of the
renderings using Mega-POV.

However, the problem is, there are little tiny (VERY tiny) “spaces” in between
certain sections of the bendable electrical wires generated with LSynth; they
are not all throughout the wires, just in a section here and there. Whether they
are there because the wires aren’t set up correctly, or they are there because
that is the way they are generated I don’t know. From a resolution of 800x600,
they are practically invisible and don’t cause any problems. From, say, a
1200x1500 resolution, they are still invisible once the rendered image gets
squeezed down, but the image is so large dimension-wise to start with, that
Mega-POV catches these little “cracks” and fills them in with bright white
spots. Even when the final image is squeezed down, these white spots are
visible; although not horrendous, they can be noticed if the image is
scrutinized long enough. I simply cannot be having these white specks in my
images.

Does anybody have any suggestions? Is there any way to fix this, or will I just
have to redo the electrical cables very carefully until all the cracks go away?
The latter scenario does not seem a pleasant one and I'm not sure if it is the
best solution. I have tried messing around with the Mega-POV options in LPub,
but no success so far.

Any help would be greatly appreciated.

Thanks,
David J. Perdue

www.geocities.com/imroboguy



Message has 2 Replies:
  Re: LPub/LSynth/Mega-POV Question
 
(...) I'm no expert in maga-pov or lpub, but if everything else looks ok, I'd just erase these white spots with Photoshop or whatever picture editing software you use. Would this be more work than remodeling the cables, or less? hth Allister (21 years ago, 6-Jan-04, to lugnet.cad.ray)
  Re: LPub/LSynth/Mega-POV Question
 
(...) Synthesised wire and tubing, if I recall correctly, is achieved by placing a large number of "primitive" elements along the spline that defines the centerline of the desired shape, aligned so they are tangential to the spline at that point, (...) (21 years ago, 6-Jan-04, to lugnet.cad.ray)

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