Hi,
In the past, I have hand translated the camera from various 3D
application to RenderMan coordinate system but recently I realized I
did not fully understand the mathematics behind them. Every new
application I tackle requires me to think through and sort of fumble
my way around.
Some application provides their camera with transformation
information like tx,ty,tz and rotx,roty,rotz while others, provides an
(eye, target, upvector) set of vectors. So far, most apps have been in
right-hand coordinate system and require translation to left-hand
coordinate system.
For the case of the (eye,target,upvector) case, I tried using the
information in Application Note #15 to get the require rotx,roty and
rotz angles.
Does anyone know of a good place to get a good understanding of the
camera transformation between 3d application and renderman?
Regards
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