e);
		
		const bluePlane_geometry = new t3d.PlaneGeometry(50, 50);
		const blue_material = new t3d.BasicMaterial();
		blue_material.diffuse.setHex(0x0000ff);
		const blue_plane = new t3d.Mesh(bluePlane_geometry, blue_material);
		blue_plane.position.y = 0.001;
		scene.add(blue_plane);
		
		scene.logarithmicDepthBuffer = true;

		const camera = new t3d.Camera();
		camera.position.set(10, 500, 200);
		camera.lookAt(new t3d.Vector3(0, 0, 0), new t3d.Vector3(0, 1, 0));
		camera.setPerspective(45 / 180 * Math.PI