help me rendering this.. :(

[mailandrex]

hi y'all..

i'm trying to render this model with vray but i can't set the lights correctly.. GI is 1 and i put 3 rectangular light in front of the windows.. multiplier 1 - no decay - ignore lights normal..

i'm using SU6.. the setting is "gi_irmap_very_low.visopt" but it takes a loooooong to time to render.. like 20 minutes.. and the result is terrible..

is it normal that it takes so much time to render or there is something wrong in the model??

thank u guys..

[edu1987]

make sure u purge all unused materials and make sure u dont have any material aplied to a group instead of a surface