Physarum simulation

Implementation of Sage Jenson's Physarum simulation, built with OpenCL and ImGUI.

Installing

Has only been tested on MacOS, both AMD and M1. Run it with

make
./physarum.out

Controls

You can control the simulation with the sliders in the Parameters subwindow

• Sensor angle: Angle between the sensors and the heading of the particle.
• Sensor dist: Distance between the sensors and the particle center.
• Rot angle: How much the particle rotates.
• Velocity: The particles have random velocities, uniformly distrubuted in the interval [0.1, 0.1 + velocity].
• Amount: How much a particle deposits on the trail each frame. Higher amounts mean shorter decay times.
• Avg: The stable average on the trail. Higher amounts mean longer decay times.

Hotkeys

• t: Switch between trail and particle render modes.
• u: Randomise parameters.
• r: Restart the simulation with the current parameters.
• q: Quit the simulation

Recording

Record a simulation by running with the -s option, requires ffmpeg to work.

make
./physarum.out -s

Gallery