On Apr 4, 2010, at 5:46 PM, Krzysztof Kosiński wrote:
It is not a case of the coordinates in box3d.cpp being inverted on the Y axis. Apparently the code was depending on the "chirality" of the coordinate system, and flipping the Y axis also flips the chirality. Anyone knows how this could be fixed?
For 3D graphics I think I've generally heard that referred to as "handedness".
http://en.wikipedia.org/wiki/Cartesian_coordinate_system#Orientation_and_han...
Generally the first thing to do is determine if what you have is based on the right-hand rule or the left-hand rule. http://en.wikipedia.org/wiki/Right-hand_rule
I also seem to recall that flipping *two* axes are usually done to flip the handedness. So changing just one might be causing stranger results.
Let me know if those terms don't point to some concrete information you can use.