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Topic: Homogeous Perspective Projections (Read 940 times) |
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Rego
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hi, does anyone know the homogeneous perspective projection matrix for the centre of projection at the origin, and the projection plane at z = 2 ?
many thanks!
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Rego
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Re: Homogeous Perspective Projections
« Reply #1 on: May 9th, 2004, 2:26am » |
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[ 1 0 0 0 ]
[ 0 1 0 0 ]
[ 0 0 1 0 ]
[ 0 0 1/2 0 ]
is this the right one?
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towr
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Re: Homogeous Perspective Projections
« Reply #2 on: May 9th, 2004, 5:32am » |
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I don't think that's right, since you're still left with a non-zero z-coordinate
I'll have to look up what it should be at home though.. (also you might try mathworld, I think they have a page on projection there)
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Wikipedia, Google, Mathworld, Integer sequence DB
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Rego
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Re: Homogeous Perspective Projections
« Reply #3 on: May 9th, 2004, 5:48am » |
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ok ill look,
thanks
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towr
wu::riddles Moderator
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Re: Homogeous Perspective Projections
« Reply #4 on: May 9th, 2004, 9:16am » |
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ughh... I should really check things before I open my .. euh.. webbrowser..
Your matrix _is_ right..
Sorry 'bout that..
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Rego
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Re: Homogeous Perspective Projections
« Reply #5 on: May 9th, 2004, 12:46pm » |
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lol thats ok, thanks for letting me know, i wasnt sure!
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