Module sdfer::bruteforce_bitmap
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Bitmap-based “closest opposite-color pixel” bruteforce search.
This algorithm is a commonly implemented one, but a naive and inefficient one.
It was most notably popularized by Valve in their 2007 SIGGRAPH entry, on using 2D texture-based SDFs to render text (or any vector shapes) in 3D environments, “Improved Alpha-Tested Magnification for Vector Textures and Special Effects”.