[Bf-committers] Knife tool and perspective mode -- incorrect
results
Matthew H. Plough
mplough at Princeton.EDU
Sun Nov 7 21:52:34 CET 2004
Matthew H. Plough wrote:
> <snip>I am currently working on fixing seg_intersect to make this work
> properly. <snip>
I have written intersection code that does not use screen coordinates,
but I am having trouble transforming screen coordinates to certain scene
coordinates.
Essentially, I need to transform the screen coordinates of mouse clicks
to scene coordinates on the image plane in perspective mode. For a
camera view, this corresponds to coordinates within the rectangle on the
front of the camera with the arrow pointing up. Does anyone know how to
do this? I spent quite a bit of time perusing code and algorithms in
books, and did not find anything.
Once I get this working, the knife tool will function correctly in
perspective modes. If possible, I would like this to be in the 2.36
release; it's a little late for 2.35.
Fixing http://www.neeneenee.de/blender/features/#10 will be much more
involved.
I would greatly appreciate the help.
Matt
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