Method extractSplats

src/ExtSplats.ts:624–648

(indices: Uint32Array, pageColoring: boolean)

  }

  extractSplats(indices: Uint32Array, pageColoring: boolean) {
    const maxSplats = getTextureSize(indices.length).maxSplats;
    const newSplats = new ExtSplats({ maxSplats });
    for (let i = 0; i < indices.length; i++) {
      const splat = this.getSplat(indices[i]);
      if (pageColoring) {
        let hue = (indices[i] >>> 16) * 0.61803398875;
        hue = hue - Math.floor(hue);
        const r = Math.max(0, Math.min(1, Math.abs(hue * 6.0 - 3.0) - 1.0));
        const g = Math.max(0, Math.min(1, Math.abs(hue * 6.0 + 1.0) - 1.0));
        const b = Math.max(0, Math.min(1, Math.abs(hue * 6.0 - 1.0) - 1.0));
        splat.color.r *= r;
        splat.color.g *= g;
        splat.color.b *= b;
      }
      newSplats.pushSplat(
        splat.center,
        splat.scales,
        splat.quaternion,
        splat.opacity,
        splat.color,
      );
    }
    return newSplats;
  }

  static emptyArray = (() => {
    const { width, height, depth, maxSplats } = getTextureSize(1);