Three.js-鼠标拖尾

var spheres = [];
var clock;
...
clock = new THREE.Clock();
var sphereGeometry = new THREE.SphereBufferGeometry( 0.1, 32, 32 );
var sphereMaterial = new THREE.MeshBasicMaterial( { color: 0xff0000 } );

for ( var i = 0; i < 40; i ++ ) {

	var sphere = new THREE.Mesh( sphereGeometry, sphereMaterial );
		scene.add( sphere );
		spheres.push( sphere );

}
...
//默认1,射线点的临界值(超出对象的最大范围)
raycaster.params.Points.threshold = 0.1;
...
var toggle = 0;
function render(){
	if ( toggle > 0.02 && intersection !== null ) {

		spheres[ spheresIndex ].position.copy( intersection.point );
		spheres[ spheresIndex ].scale.set( 1, 1, 1 );
		spheresIndex = ( spheresIndex + 1 ) % spheres.length;

		toggle = 0;

	}

	for ( var i = 0; i < spheres.length; i ++ ) {

		var sphere = spheres[ i ];
			sphere.scale.multiplyScalar( 0.98 );
			sphere.scale.clampScalar( 0.01, 1 );

	}

	toggle += clock.getDelta();
}

标签：sphere,Three,js,spheres,toggle,var,new,THREE,拖尾
来源： https://blog.csdn.net/u013270347/article/details/89362045