A pirate flag created with Cinema 4D (cloth Tags) and SpeedTree.Compositing in After Effects (To add Sky Background, Flying Birds with Particular Plugin, Particles and Fog).
SpeedTree
SpeedTree is a powerful toolkit used to create 3D animated plants and trees for games, animations, visual effects shots, and architectural renderings.
SpeedTree product line adds support for Cinema 4D
Industrial Light & Magic used the SpeedTree Cinema software on Avatar to generate the trees on the planet Pandora. The latest release adds direct support for Maxon’s Cinema 4D.