CGPeers is a torrent tracker specializing in 3D / Visual Effects / Computer Graphics / Design / Computer Assisted Art,tracker got +212k users and +46k torrents
THey have a blog called "CGPersia" that is a website where they upload more or less the same stuff, but via free file sharing services, there is also a forum for faster and more recent software updates where users upload using friendlier links like mega or zippy.
ratio rules vary according to your download size and amount of seeding (your snatched torrents) but if your ratio be over 0.5 you will be okay without worrying about these Conditions,Maintain good ratio is easy as :
- tracker is set FL for long time
- Many torrents are uploaded daily with many leechers
CGPeers offers so many tutorials and programs that it is by far the best tracker for CG / VFX based content.