Both captures below are real iTerm2 sessions running the demo — the same binary renders at pixel resolution where the terminal speaks the kitty graphics protocol, and as ASCII cells everywhere else.
kitty graphics — snow-gfx
Hundreds of flakes fall in three parallax layers with per-flake sway and a wind that gusts; an accumulation height-field grows where flakes land and slowly settles into mounds. The sky is transparent, the snow opaque.
snow — kitty pixel mode
ASCII cells — snow
Flakes pick a glyph by depth layer (❄ ❅ * ·) and the drift is drawn with block glyphs along the bottom. c swaps snow for ash, cherry petals, or rain.
snow — ASCII cell mode
Controls
Key
Action
space
gust
mouse click
gust at the pointer
a
toggle accumulation
c
cycle type
+ / -
wind strength
q / Esc
quit
Tuning env vars use the SNOW_* prefix — e.g. SNOW_MAXDIM=1024 for sharper frames, SNOW_CELLS=1 to force cell rendering even on kitty terminals. See the overview for the full tuning table.
