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fragment-shader / lines
Topo Contours
Animated topographic contour lines drifting over an FBM heightfield.
Still / Topo Contours
Behind the study
A fractal noise field is read as terrain, with a contour wherever the height crosses an evenly spaced interval. Every fifth contour takes the red accent, echoing the index lines of a topographic map. Two drifting noise layers continually rearrange the ridges and basins.