There’s a new version of this out:
-Added options for editing much higher res vector fields, but can’t recommend 'em performance wise
-Added a non-VR mode so you can use mouse and keyboard to paint vector fields now - not as intuitive, but hey
-Added new Paint Modes - you can still paint directionality (default) but also you can Attract and Repel
-Other stuff
Also, the tool is now Coming Soon On Steam: http://store.steampowered.com/app/684330 Consider showing your support by wishlisting it!