Please excuse this rough description of what I'm trying to do. I'm struggling to put it into reasonable-sounding words!
Imagine that I have imported a chessboard into Keyshot. I've snapped it flat to the ground. Now I'm moving the camera so that the camera is now directly above the chessboard, facing down towards it (azimuth -90, inclination 90). OK, that's the easy part!
To me the viewer. it looks like the chessboard (and the floor it's sitting on) it directly facing me. Now, how can I make the camera move from left to right (or vice versa) around the chessboard from this position? Note that I don't want to animate, just be able to orbit the camera to seek a good angle for rendering. If I try and move the camera in the normal way (left-click and drag) I can't even get close to the positioning I require. If I drag the mouse left or right it just rotates clockwise/anticlockwise.
I can solve the problem by importing the chessboard so that it has a vertical orientation rather than flat on the ground, but I don't want to do that if I can help it as it makes the lighting a bit more complicated.
Is there anyone who can help?!