Hi, i have a problem with my project. See the project is about an urban regeneration, so the model in sketchup is a about 3 km model of a part of our city, the file is about 78 MB, so is huuuge. and when i try to make a render in vray it doesn't start. I have tried to purge it, i restart several times, i scale the model 1:1000 hoping it would weight less but it doesn`t, it remains with the same 78 MB, i have also tried in differents computers with higher memory but its the same problem, what can you recommend me to do. thanks