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The latest Tilt Brush tool is a game-changer for VR artists
Google's Tilt Brush is one of the best VR painting apps for the Oculus Rift and HTC Vive. Since its release in 2016, artists have drawn magnificent ships, jaw-dropping mountain ranges and imaginative fight scenes in immersive 3D. Most of the app's brushes, however, mimic the real world with flat, ribbon-like strokes. For years, you've had to move around and paint, or 'color in' every surface of a 3D object like a cube or cone. It was pretty time consuming. Thankfully, the team behind Tilt Brush noticed and introduced a solution, called the hull brush, toward the end of June. The new tool allows you to paint volumetrically. Normally, the app follows your movements in mid-air and creates a series of control points. These are supplemented with secondary points and then converted into colorful brush strokes. The hull brush, however, uses the control points to create a 3D mesh. The outermost points dictate the final size and shape, which for now has to be convex (curving outward, rather than inward). "The simplest way to think of a convex hull is as if you were 'gift wrapping' the points with geometry," Jeremy Cowles, the technology lead for Tilt Brush explained.
