On 07/11/2012 3:33 PM, Encore wrote:
> If you render this code with

Sorry, I am so busy in RL that it might/will take me a while to get 
round to it. :-(
Most optical illusions rely on a fixed viewpoint and I think that this 
would be very difficult to create in an animation.
But it would be very worthwhile if it can be done.
One of the reasons that I think that you would need differences is that 
not all the surfaces that hide the back of the object are invisible. For 
instances at the corners.
If I have the time at the weekend I will look into it further.

-- 
Regards
     Stephen

Post a reply to this message