Subject:
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Re: 3D matrix math question
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Newsgroups:
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lugnet.cad.dev
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Date:
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Sun, 14 Dec 2008 21:26:45 GMT
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Viewed:
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12251 times
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In lugnet.cad.dev, Timothy Gould wrote:
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Would a simple solution just be to move the conditional points right in
close to the original points at parse time? If the length of the conditional
vectors is unimportant then youd be decreasing the number of conditional
points that lie outside the viewing frustum. With a distance of, say, 1/10th
LDU from the line youd rarely encounter any problems.
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So I think something along these lines (or a better works-mostly solution)
would be better.
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I think youre right. Ill look into that. It seems like the most
straightforward, and since its just a pre-processing step, it shouldnt affect
the performance for anything other than model loading.
--Travis
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Message has 1 Reply: ![](/news/x.gif) | | Re: 3D matrix math question
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| (...) OK, I applied this fix (pulling the control points to be 1 LDU from the first point of the conditional line), and it seems to work. It makes the "Show control points" option under conditional lines less useful, but that's a price I'm willing (...) (16 years ago, 14-Dec-08, to lugnet.cad.dev, FTX)
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Message is in Reply To:
![](/news/x.gif) | | Re: 3D matrix math question
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| (...) OK... I think I understand what I was getting at here. When you introduce perspective then the distance of the conditional point from the line becomes important. Eg. if you have a point that is directly behind its line in a perspective free (...) (16 years ago, 14-Dec-08, to lugnet.cad.dev, FTX)
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39 Messages in This Thread: ![Colinear Vertices -Philippe Hurbain (9-Dec-08 to lugnet.cad)](/news/x.gif) ![](/news/46.gif) ![Re: Colinear Vertices -Michael Heidemann (9-Dec-08 to lugnet.cad)](/news/x.gif) ![](/news/246.gif) ![Re: Colinear Vertices -Travis Cobbs (9-Dec-08 to lugnet.cad)](/news/x.gif) ![](/news/246.gif) ![Re: Colinear Vertices -Timothy Gould (9-Dec-08 to lugnet.cad)](/news/x.gif) ![](/news/46.gif) ![Re: Colinear Vertices -Travis Cobbs (9-Dec-08 to lugnet.cad)](/news/x.gif) ![](/news/46.gif) ![Re: Colinear Vertices -Timothy Gould (9-Dec-08 to lugnet.cad)](/news/x.gif)
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