For example, my camera has a position as belows:
ortx: 1.0000 0.0000 0.0000
orty: 0.0000 1.0000 0.0000
ortz: 0.0000 0.0000 1.0000
orig: 0.0000 10.0000 10.0000
Now I can handle the position of camera by access orig.x, orig.y and orig.z, but I cannt handle the direction of camera, say, turn the camera to left in 90 degree.
What will ortx, orty, ortz be after the turning?
Thank you.
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