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 — julia-gfx
Per-pixel escape-time iteration with smooth (fractional) colouring through a cycling palette, so the filaments glow without banding. The constant c glides on a loop, jumps to a new shape on space, or snaps to wherever you click.
julia — kitty pixel mode
ASCII cells — julia
The same escape count mapped to a .:-=+*#%@ ramp and palette colour.
julia — ASCII cell mode
Controls
Key
Action
space
jump to a new seed
mouse click
set the seed
a
toggle autopilot
c
cycle palette
+ / -
iteration detail
q / Esc
quit
Tuning env vars use the JULIA_* prefix — e.g. JULIA_MAXDIM=1024 for sharper frames, JULIA_CELLS=1 to force cell rendering even on kitty terminals. See the overview for the full tuning table.
