mUnitVectors(new THREE.Vector3(0, -1, 0), new THREE.Vector3(0, 1, 0));
    
    const _loadPlantMeshes = () => new Promise((accept, reject) => {
      const loader = new THREE.GLTFLoader();
      loader.load('plants.glb', o => {
        o = o.scene;

        const result = [];
        o.traverse(e => {
          if (e.isMesh) {
            e.frustumCulled = false;
            result.push(e);
          }
        });

        accept(result);
      });
    });

    planeMeshes = [];
    /* const planeGeometry1