Howler

Paint and animate in 2-D and 3-D. Project Dogwaffle Howler lets you paint with a large number of natural media styles as well as unique medias like particle foliage, animated brushes and more. Tablet devices are fully supported. There are advanced painting modes such as symmetry painting. There are a large number of filters that operate in real-time and full-screen. Also provided are video and animation tools such as a timeline, keyframer, batch scanning, cleanup, exposure sheet, rotoscoping, and motion tracking. Landscape rendering in 3d is possible, along with animating the final result.

Limitations:

30-save trial