Is this the same sort of stuff that verbalshadows been coding up? I thought the math he'd been doing was for envelope type deformations? could be wrong tho...
Cheers
John
--- Bryce Harrington <bryce@...260...> wrote:
On Wed, Apr 13, 2005 at 01:48:55PM -0500, Bob Jamison wrote:
Hi,
I saw on the web a CS course paper by a Prof Chuck Stewart of RPI, about a simple mechanism for achieving projective
transforms.
http://www.cs.rpi.edu/~stewart/math_vision/lec9.pdf
Basically you take 4 corners of a rectangle (like the corners of a selection marquee), a, b, c, d. Move one or more of the points to
a',
b', c', d'. Calculate the transform of the points (and the
rectangle
they describe) to the new points. Apply this to the selected object(s).
Does this appear to be a valid new feature that we might want?
Sounds like a great feature to me. I've had a few users asking about this capability fairly recently. In one cases the need was to create a shadow for a mascot in a logo. You can get most of the way there just with skewing and fussing with it, but to get the distance perspective I think he ended up having to do node editing. A perspective transform tool would have achieved the same result in fewer steps.
Bryce
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