Well, if you can get a 3x3, you should just be able to start with a 4x4
identity matrix and then copy the 3x3 into the upper-left corner of that
matrix.
Ryan
On Wed, Jun 1, 2011 at 9:08 AM, Kevin DeMott kdem...@belcan.com wrote:
I'm trying to find a way to convert a four sided polygon (non-rectangular)
into a rectangle in 3D space. I would like this to be some type of matrix
transform as I need to be able to go both ways. IE from the polygon to a
rectangle and from a rectangle to the polygon.
I can do a similar operation in QT with the QTransform::quadToQuad. The
problem with that approach is I end up with a 3x3 matrix whereas I need a
4x4 for the osg/opengl calls. I have not had much luck stuffing the 3x3 into
a 4x4.
Thanks
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Read this topic online here:
http://forum.openscenegraph.org/viewtopic.php?p=40008#40008
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Ryan Pavlik
HCI Graduate Student
Virtual Reality Applications Center
Iowa State University
rpav...@iastate.edu
http://academic.cleardefinition.com
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