Tilt Brush is a room-scale 3D-painting virtual-reality application available from Google, originally developed by Skillman & Hackett and it is one of the things in the Google Arts & Culture Experiments.
In a Fast Company article about Tilt Brush, one of the creators said that the idea of drawing in 3D space came from a chess game prototype: “There was a happy accident. Tilt Brush came out of an experiment with a virtual reality chess prototype, where we accidentally started painting the chess pieces in the air, and it was incredible”. In the earlier versions of Tilt Brush, it was only possible to draw on two-dimensional planes.
In early 2021, Google released the source code of the application under the Apache 2.0 license on GitHub.
These videos give you a sense of what it can do.
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