On 27/06/2012 02:10 PM, Invisible wrote:

> Clearly in this universe, something is fatally wrong with the laws of
> reflection. o_O

Bah. Damned sign conventions...

http://en.wikipedia.org/wiki/Specular_reflection

This claims that the direction of the reflected ray is

   R = 2 (I . N) N - I

Running this gives me the previous distorted image. If I change it to

   R = I - 2 (I . N) N

then it comes out correctly:

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