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This project was initially designed as a worked-out example of
manipulation in the Cube, as opposed to the more prevalent metaphor of
navigation. But since then it has taken on a life of its own. It
applies the classic painting metaphor to the Cube. Strokes are
rendered as ribbons with noise-smoothing and normals chosen to minimize
curvature, just like finitely flexible cloth ribbons. Any part of any
stroke can be erased (without reducing frame rate as fragments
increase), encouraging both additive and subtractive drawing/sculpting
processes. To optimize for the Cube's finite contrast ratio, a
lighting feedback mechanism adjusts OpenGL lighting frame by frame for
optimal color rendition.
Ribbon Painting strongly exploits the painter/sculptor's freedom to move
around untethered and work from any angle.
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