2026-10-19 · 20261019-letters-from-the-sky
天空寄來的信Letters from the Sky
你就是天氣：移動滑鼠改變溫度與濕度，一片雪晶依真實的水氣擴散模型在 GPU 上即時長出來，形狀記錄了你走過的路；落在毛線上，讀成一封信。You are the weather. A snow crystal grows from a real vapour-diffusion lattice model on the GPU while you steer temperature and humidity; its shape records your path. It lands on dark wool, re-reads itself, and becomes a letter: grow its twin, share the journey, keep a gallery.