Here is two images that illustrate whats going on. The first image no glass is in the windows.
Second image is what happens when i turn on windows and try and render to get reflections. The sun disaperas on the floor. What am i doing wrong.
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natty
2
hi …
just exclude the glass from your sun light.
Natty
CBAS
3
exclude from the shadowmap to be precise 
cheers natty
I think u shoul do a Vray mat and check the affect shadows in the refraction slot…
Cheers for all
Brim
5
yes - check affect shadows on VRay mat.