Rendering 3D Graphics on a 32×32 RGB LED Matrix Display with a Raspberry Pi and GeeXLab
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In July 1985, Ken Perlin introduced his much-used algorithm for producing organic randomness, now known as Perlin noise. That function consists of four important subroutines: * Random gradient vector lookup. * S-curve evaluation. * Grid-point dot product evaluation. * Interpolation across all dimensions.