Dual tank · 3d retro graphics

{"slug":"dualtank","number":"29","title":"Dual tank","era":"Stam 1999 solver · 2026 illustration","section":"modern","provenance":"documented","reference":{"label":"J. Stam, \"Stable Fluids\", SIGGRAPH 1999, for the solver; the strained display on the right is a 2026 illustration","url":"https://doi.org/10.1145/311535.311548"},"summary":"Same 48×48 Stam twice. Left is bounded. Right is a lying legend.","description":"Split screen, two copies of the GDC Stam solver. Left is the usual dye tank, labeled bounded. Right runs the same step, then a display-only strain: dye is sampled through an inward spiral and an axial stretch, and the false-color speed scale goes as 1/(T*−t). Orange is the boosted speed, teal is slow. The code on the right is still stable. The legend is not. Stir either side. T* is the horizon slider.","apis":["Canvas 2D","ImageData","Pointer Events","requestAnimationFrame","matchMedia"],"tags":["sim","fluid"],"hasGlsl":false,"interaction":"Move or drag on either half to stir that tank. Right-hand color scale grows as t approaches T*.","url":"https://3d-retro.com/experiments/dualtank","example_url":"https://3d-retro.com/examples/dualtank.html","api_url":"https://3d-retro.com/api/v1/experiments/dualtank","html":"\n\n\n \n \n \n \n Dual tank · 3d retro graphics\n \n\n\n

\n\n\n\n\n"}