Shows the different fields visualized.
4096 agents on a 256x256 grid.
0:05 map overlay and discomfort field (infinite walls in white, low discomfort in red)
0:15 density field (low density in red, high density in blue)
0:22 average velocity direction. Color and arrows indicate direction.
0:37 anisotropic speed field (values for each of the four directions north, east, south, west)
1:02 anisotropic cost field
1:17 potential field (zero potential at goal areas, potential increasing outwards over domain)
1:43 gradient direction field (color coded, and later arrow overlay, nearest neighbor and bilinear filtering (as used by agents during movement update))
The agents move against these gradients to their destinations.
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