Shell fur on Spot the cow (by Keenan Crane, public domain): the mesh drawn again in layers, each pushed out along the normals and cut to the strands’ cross-section by one shared texture, whose alpha is each strand’s height, at the layer’s own threshold. Spot’s own texture colors the fur, and the wind moves each layer’s node, so swaying uploads no geometry.

Loading the terminal and scene…

Drag: orbit · Shift-drag: pan · Wheel: zoom · c fit · d foga wind s shells: 8, 16, 32 l length n turnf fins x GPU supersampling 1×, 2×, 3× e effect: soft focus, vignette1 GPU 2 software 3 wireframer camera rotation g glyphs o projection q quit

Fewer shells show the layering; seen edge-on, strands break into dashes, the technique’s known limit. Click the terminal to focus keyboard controls. GPU falls back to software when unavailable. Reload to restart after quitting.