three.js TypeError:无法读取undefined的属性'rotation'

时间:2015-05-28 13:42:36

标签: javascript three.js

我制作了一个场景,我想在哪里想要制作立方体动画,但它一直给我一个错误: TypeError:无法读取undefined

的属性'rotation'
        function animate() {
        requestAnimationFrame( animate );
        render();
        }

        function render() {

            var time = Date.now() * 0.005;
            camera.position.x += ( mouseX - camera.position.x ) * 0.05;
            camera.position.y += ( - mouseY - camera.position.y ) * 0.05;
            camera.lookAt( scene.position );

            for ( i = 0; i < scene.children.length; i ++ ) {
                var object = scene.children[ i ];
                if ( object instanceof THREE.PointCloud ) {
                    object.rotation.y += 0.01 ;
                    }
            }
            cube.rotation.y = time* 0.01;
            renderer.render( scene, camera );
        }

PoinCloud工作得很好,但是为了治愈它会给我一个错误。

有人可以帮我解决问题吗?

2 个答案:

答案 0 :(得分:0)

您是否创建了这样的立方体?

var geometry = new THREE.BoxGeometry( 1, 1, 1 ); var material = new THREE.MeshBasicMaterial( {color: 0x00ff00} ); var cube = new THREE.Mesh( geometry, material ); scene.add( cube );

答案 1 :(得分:0)

无论如何,即使得到相同的代码,这是有效的(真的,我逐行检查它们),我将行改为:

for ( i = 0; i < scene.children.length; i ++ ) {

                var object = scene.children[ i ];

                if ( object instanceof THREE.Mesh ) {

                    object.rotation.y += 0.1 ;

                    }
            }