Johannes Schmid     Martin Sebastian Senn     Markus Gross     Robert W. Sumner Disney Research Zurich, ETH Zurich Abstract: We present a technique to generalize the 2D painting metaphor to 3D that allows the artist to treat the full 3D space as a canvas. Strokes painted in the 2D viewport window must be embedded in 3D space in a way that gives creative freedom to the artist while maintaining an a