ghqsandbox.net

set_friction

Switch Coulomb friction on or off for the whole sandbox. Off (the default) is the idealised frictionless case: a block on a slope always slides, and nothing sliding on the flat ever stops. On, every contact also resists sliding, with the coefficient taken from the materials of the two surfaces touching — so a rubber ball on concrete (mu 0.90) stops almost at once while steel on ice (mu 0.03) barely slows. The natural lesson is to run a scene both ways: start frictionless, then retry_simulation, turn friction on, and run the identical layout again. Pre-simulation stage only, so that a run stays reproducible.

Page: /physics.html

Input schema

{
  "type": "object",
  "properties": {
    "enabled": {
      "type": "boolean",
      "description": "true to switch friction on, false for the frictionless case."
    }
  },
  "required": [
    "enabled"
  ]
}