V-ray rendering taking too long.

[pieroarguello19]

I have been trying to make a rendering using this following options that I found on the internet, but the render is taking me too long. The light cache of the model takes forever. It takes more than 8 hours and the render is not well done at the end. I am trying just to make as good as this one using the same arrangements.

This is the link that I took as an example. Thanks. http://www.slideshare.net/sketchuptexture/mtm-tutorial-forest-house-by-empoy-medina