Using VoxelPaint you can paint in 3D using voxels, three dimensional pixels. Press the Cardboard button to view the environment in Google Cardboard.
VoxelPaint also works in the browser on Windows, Mac and Linux; visit http://www.voxelpaint.com.
Your drawings are saved and loaded from the cloud. Share them with other people using Twitter, Facebook or Google Plus, or share the world keycode.
For an example, visit: http://voxelpaint.com/#world=dOJSRI2j9W