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 21:29:47 GMT
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Viewed:
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11969 times
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In lugnet.cad.dev, Michael Heidemann wrote:
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I am not the best in 3D, but if something outside the view frustum, you do
not need to draw that. If you have the special case that only parts of what
you should draw are outside the view frustum, I would go to calculate that
values for a viewpoint far away, that all of the model is in the view frustum
and then I keep that values and do a zoom.
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In the case that exhibits the bug, the control points are outside the frustum,
but the conditional line itself isnt. So I still need to decide whether or not
to draw the conditional line. In this case, it was being drawn at times that it
shouldnt have been.
Im going to try Tims suggestion of pulling the control points toward the
conditional line. I think that will solve the problem.
--Travis
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Message is in Reply To:
![](/news/x.gif) | | Re: 3D matrix math question
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| (...) I am not the best in 3D, but if something outside the view frustum, you do not need to draw that. If you have the special case that only parts of what you should draw are outside the view frustum, I would go to calculate that values for a (...) (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)
![](/news/x.gif) ![](/news/28.gif) ![](/news/x.gif) ![](/news/68.gif) ![Re: Colinear Vertices -Philippe Hurbain (11-Dec-08 to lugnet.cad)](/news/x.gif) ![](/news/46.gif) ![Re: Colinear Vertices -Travis Cobbs (11-Dec-08 to lugnet.cad)](/news/x.gif) ![](/news/46.gif) ![Re: Colinear Vertices -Philippe Hurbain (12-Dec-08 to lugnet.cad)](/news/x.gif) ![](/news/246.gif) ![Re: Colinear Vertices -Travis Cobbs (12-Dec-08 to lugnet.cad)](/news/x.gif) ![](/news/246.gif) ![Conditional Ring primitive? -Travis Cobbs (12-Dec-08 to lugnet.cad)](/news/x.gif) ![](/news/46.gif) ![Re: Conditional Ring primitive? -Philippe Hurbain (12-Dec-08 to lugnet.cad)](/news/x.gif) ![](/news/46.gif) ![Re: Conditional Ring primitive? -Philippe Hurbain (12-Dec-08 to lugnet.cad)](/news/x.gif) ![](/news/46.gif) ![Re: Conditional Ring primitive? -Travis Cobbs (12-Dec-08 to lugnet.cad)](/news/x.gif) ![](/news/246.gif) ![Re: Conditional Ring primitive? -Travis Cobbs (12-Dec-08 to lugnet.cad)](/news/x.gif)
![](/news/x.gif) ![](/news/28.gif) ![](/news/x.gif) ![](/news/28.gif) ![](/news/x.gif) ![](/news/28.gif) ![](/news/x.gif) ![](/news/x.gif) ![](/news/68.gif) ![Re: Conditional Ring primitive? -Philippe Hurbain (13-Dec-08 to lugnet.cad)](/news/x.gif) ![](/news/46.gif) ![Re: Conditional Ring primitive? -Travis Cobbs (13-Dec-08 to lugnet.cad)](/news/x.gif) ![](/news/246.gif) ![Re: Conditional Ring primitive? -Philippe Hurbain (13-Dec-08 to lugnet.cad)](/news/x.gif)
![](/news/x.gif) ![](/news/28.gif) ![](/news/x.gif) ![](/news/28.gif) ![](/news/x.gif) ![](/news/28.gif) ![](/news/x.gif) ![](/news/x.gif) ![](/news/68.gif) ![3D matrix math question -Travis Cobbs (14-Dec-08 to lugnet.cad.dev)](/news/x.gif) ![](/news/246.gif) ![Re: 3D matrix math question -Timothy Gould (14-Dec-08 to lugnet.cad.dev)](/news/x.gif) ![](/news/46.gif) ![Re: 3D matrix math question -Travis Cobbs (14-Dec-08 to lugnet.cad.dev)](/news/x.gif) ![](/news/246.gif) ![Re: 3D matrix math question -Timothy Gould (14-Dec-08 to lugnet.cad.dev)](/news/x.gif) ![](/news/46.gif) ![Re: 3D matrix math question -Timothy Gould (14-Dec-08 to lugnet.cad.dev)](/news/x.gif) ![](/news/46.gif) ![Re: 3D matrix math question -Travis Cobbs (14-Dec-08 to lugnet.cad.dev)](/news/x.gif) ![](/news/46.gif) ![Re: 3D matrix math question -Travis Cobbs (14-Dec-08 to lugnet.cad.dev)](/news/x.gif) ![](/news/46.gif) ![Re: 3D matrix math question -Timothy Gould (16-Dec-08 to lugnet.cad.dev)](/news/x.gif) ![](/news/46.gif) ![Re: 3D matrix math question -Travis Cobbs (16-Dec-08 to lugnet.cad.dev)](/news/x.gif) ![](/news/46.gif) ![Re: 3D matrix math question -Philippe Hurbain (16-Dec-08 to lugnet.cad.dev)](/news/x.gif) ![](/news/46.gif) ![Re: 3D matrix math question -Travis Cobbs (16-Dec-08 to lugnet.cad.dev)](/news/x.gif)
![](/news/x.gif) ![](/news/28.gif) ![](/news/x.gif) ![](/news/28.gif) ![](/news/x.gif) ![](/news/28.gif) ![](/news/x.gif) ![](/news/28.gif) ![](/news/x.gif) ![](/news/x.gif) ![](/news/68.gif) ![Re: 3D matrix math question -Anders Isaksson (14-Dec-08 to lugnet.cad.dev)](/news/x.gif) ![](/news/46.gif) ![Re: 3D matrix math question -Travis Cobbs (14-Dec-08 to lugnet.cad.dev)](/news/x.gif)
![](/news/x.gif) ![](/news/28.gif) ![](/news/x.gif) ![](/news/28.gif) ![](/news/x.gif) ![](/news/28.gif) ![](/news/x.gif) ![](/news/x.gif) ![](/news/68.gif) ![Re: 3D matrix math question -Michael Heidemann (14-Dec-08 to lugnet.cad.dev)](/news/x.gif) ![](/news/46.gif) ![You are here](/news/here.gif)
![](/news/x.gif) ![](/news/28.gif) ![](/news/x.gif) ![](/news/28.gif) ![](/news/x.gif) ![](/news/68.gif) ![Re: Colinear Vertices -Philippe Hurbain (13-Dec-08 to lugnet.cad)](/news/x.gif) ![](/news/46.gif) ![Re: Colinear Vertices -Travis Cobbs (13-Dec-08 to lugnet.cad)](/news/x.gif) ![](/news/46.gif) ![Re: Colinear Vertices -Philippe Hurbain (13-Dec-08 to lugnet.cad)](/news/x.gif)
![](/news/x.gif) ![](/news/28.gif) ![](/news/x.gif) ![](/news/x.gif) ![](/news/68.gif) ![Re: Colinear Vertices -Travis Cobbs (13-Dec-08 to lugnet.cad)](/news/x.gif) ![](/news/46.gif) ![Re: Colinear Vertices -Philippe Hurbain (13-Dec-08 to lugnet.cad)](/news/x.gif)
![](/news/x.gif) ![](/news/x.gif) ![](/news/68.gif) ![Re: Colinear Vertices -Philippe Hurbain (11-Dec-08 to lugnet.cad)](/news/x.gif)
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