---

name: 3d-lenia description: 3D volumetric Lenia engine, presets, slice visualization, and GPU pipeline. Use when working on 3D simulation, volumetric rendering, or 3D organism presets.

3D Lenia Engine

Creating 3D Engine

Copyimport { createEngine3D } from "./core/engine-3d";

const engine3D = await createEngine3D({
  canvas,
  size: 64, // Grid size (32, 64, or 128)
});

Engine API

Copy// Lifecycle
engine3D.start();
engine3D.stop();
engine3D.stepOnce();

// Load preset organism
engine3D.loadPreset("stable-sphere");

// Slice visualization
engine3D.setSlicePlane("xy" | "xz" | "yz");
engine3D.setSlicePosition(32); // Position along slice axis

// Rendering
engine3D.setColormap("viridis");

// State access
const state = await engine3D.getState(); // Full 3D state (Float32Array)
const slice = await engine3D.getSlice("xy", 32); // 2D slice

3D Presets

Loading Presets

Copyimport { LENIA_3D_PRESETS } from "./patterns/lenia-3d-presets";

const preset = LENIA_3D_PRESETS["stable-sphere"];
engine3D.loadPreset(preset.name);

Grid Sizes

Types

Copyimport type {
  Grid3DConfig,
  Lenia3DParams,
  Kernel3DConfig,
  SlicePlane,
} from "./core/types-3d";

interface Grid3DConfig {
  size: number; // Cube dimension
  kernelRadius: number;
  growthCenter: number;
  growthWidth: number;
  dt: number;
}

type SlicePlane = "xy" | "xz" | "yz";

3D GPU Pipeline

Copyimport { createLenia3DPipeline } from "./compute/webgpu/lenia-3d-pipeline";

const pipeline = createLenia3DPipeline(device, {
  size: 64,
  kernelRadius: 7,
  growthCenter: 0.12,
  growthWidth: 0.04,
});

// Step simulation
pipeline.step(commandEncoder);

// Get slice for visualization
const sliceData = await pipeline.getSlice("xy", 32);

Core Files