Hyle Studio Log in Register
Simulation · Published v2

Amber Cascade

Two colors of grains fall onto a stepped basalt basin. Downward mass transport and empty-cell cleanup form a simple settling experiment. Paint GoldSand or RoseSand above the basin to keep the cascade going. Gold and rose colors identify the two grain models throughout their fall.

By @hyle · 3 source files · 0 dependencies

Open in Studio
No preview

Inside this simulation

Every named building block is public and reusable. These are the exact versions published with this simulation.

Properties 2

Grain@hyle · v1Rock@hyle · v1

Behaviors 2

Fall@hyle · v1RemoveEmptyGrain@hyle · v1

Appearance 3

Basalt@hyle · v1GoldGlow@hyle · v1RoseGlow@hyle · v1

Models 3

Basin@hyle · v1GoldSand@hyle · v1RoseSand@hyle · v1

Source

// This demonstration models vertical settling; it does not claim angle-of-repose physics.
property Grain { mass: Float<1.0> [0.0 1.0]; tint: Float<0.0> [0.0 1.0]; }
property Rock { hardness: Float<1.0> [0.0 1.0]; }
model Basin : Rock;
model GoldSand : Grain;
model RoseSand : Grain { tint<1.0>; };
world { dimensions 3; cell Cube; neighborhood VonNeumann; }
behavior Fall for Grain { stream self.mass toward -Z when exposed[-Z] on block reflect into self.mass; }
behavior RemoveEmptyGrain for Grain { delete when self.mass < 0.01; }
phase gravity { run Fall on GoldSand; run Fall on RoseSand; }
phase cleanup { run RemoveEmptyGrain on GoldSand; run RemoveEmptyGrain on RoseSand; }
visual Basalt for Rock { color { rgba(0.18, 0.23, 0.31, 1.0) } }
visual GoldGlow for Grain { color { rgba(0.96, 0.68, 0.18, 1.0) } }
visual RoseGlow for Grain { color { rgba(0.96, 0.33, 0.46, 1.0) } }
visualize Basin with Basalt;
visualize GoldSand with GoldGlow;
visualize RoseSand with RoseGlow;