Patrick Dugan wrote:

> I have tried removing the up and right but it doesn't seem to affect it
> much.  Is there any way to make the spheres look perfectly round regardless
> of position?

No.  This is a perspective principle.  Unless the sphere is centered in
the image, it will be distorded.  This happens with photographic
cameras, hand drawing, anything.  I'll post a shematic explaining
what happens a little later...

The only camera types that act otherwise are orthographic and 
fisheye.

You can reduce the effect by playing with the angle and position
of camera, or using ultra_wide_angle.

Fabien.

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