A terminal lava lamp simulation using metaballs, rendered with Unicode half-block characters and true color.
- Metaball physics with bouncing off walls
- Turbulence noise for organic lava movement
- True color (RGB) lava gradient rendering
- Configurable via CLI flags
A terminal with true color support (e.g. kitty, alacritty, wezterm, iTerm2).
cargo install --path .rustylava [OPTIONS]Press q to quit.
| Flag | Short | Default | Description |
|---|---|---|---|
--balls |
-b |
25 |
Number of metaballs |
--min-radius |
5.0 |
Minimum ball radius | |
--max-radius |
20.0 |
Maximum ball radius | |
--speed |
-s |
0.5 |
Max velocity per axis |
--fps |
-f |
30 |
Target frames per second |
# Default
rustylava
# Lots of small fast balls
rustylava --balls 50 --max-radius 8 --speed 1.5
# Slow, large blobs at 60 fps
rustylava --balls 8 --min-radius 12 --max-radius 30 --fps 60MIT