You can also render faster using your Terminal and ‘aerender.’ Simply set up your project to render with the desired settings and save the project. Open Terminal and drag the ‘aerender’ script (found in Applications > After Effects > aerender) into the terminal window. Then hit space bar then type ‘-project’ and drag your AE project file into the terminal and hit the return key. Your project will then render fairly fast and you will still have enough remaining ram to continue working on your computer without it slowing down. This is also a great way to render multiple AE projects at once!
Jeff Kaplan
Point 360 WEST
Animation & VFX Department
http://www.point360.com