Blender cycles CUDA out of memory error in archviz scene I have made an arcviz scene with different objects that are complex (level of detail pretty good and I prepared render but there is a problem: the cuda memory (3 gb) is not enough for the scene. I am trying to solve the thing without actually losing precision or realism, but the problem still persist (I tried rendering layers separated but there is still the problem of the objects being connected  (shadows or others) one another, so if i render one, it seems out of place because it hsn't the shadow or reflexed of other objects of the scene. Do you have any suggestion?
I'm guessing the rug is causing the problem, due to the number of hair particles. If that is the cause, try changing the particle settings or use geometry instead of the hair strands as strand. 

Or invest in a better graphics cards, Gtx 1060 with 6 gig of memory works great for my projects.