1,300 computer-generated bats we created for Cracked's video "I'm Worried My Step Dad's A Vampire". Watch the video: https://goo.gl/ttrSv0. More info at Ghostlight.com. Bats were rigged, animated, cloth simulated for the wings, duplicated for size and color variation, assigned to a guided flocking simulation system with 1,300 agents, lit by on-set HDR imagery, rendered with global illumination, depth of field, & motion blur.