While it is possible to extract forward and backward optical flow (2D motion vectors) from Blender using the Vector pass, there is no direct way of exporting point-wise 3D motion vectors or scene flow ...

How good are free and open-source multimedia apps like Blender? Well, good enough to win Flow, an animated film made entirely in Blender, an Oscar on Monday morning.

The custom Blender plug-in that powered the water scenes in Flow is now available for public download. Engineered specifically for Blender, this plug-in delivers robust water simulation capabilities ...