Hello,

What i understand is that you want to know if the sun will hilight something
after  a reflection in a miror.

I suggest to use the property of light which say that a beam shoot in the
opposite direction will follow the same path (in reverse).

So you can evalute the direction of the sun with two angles (may sunpos can
help) and then place an orthograhic camera in that direction, which will
look at the mirror. All the objects that will be hit by the sun will be
visible in the mirror.

Pascal

Post a reply to this message