一切正常，直到我尝试旋转网格（吉他），然后没有任何渲染。在添加到场景之前，我可以旋转并定位它，但如果我尝试在渲染功能中旋转它，一切都会变黑。
谁能告诉我我做错了什么？代码如下。
感谢
<script src="../build/three.min.js"></script>
<script src="js/loaders/DDSLoader.js"></script>
<script src="js/loaders/MTLLoader.js"></script>
<script src="js/loaders/OBJMTLLoader.js"></script>
<script src="js/Detector.js"></script>
<script src="js/libs/stats.min.js"></script>
<script>
var targetRotation = 0;
var targetRotationOnMouseDown = 0;
var mouseX = 0;
var mouseXOnMouseDown = 0;
var container, stats;
var camera, scene, renderer;
var guitar,button1,cube;
var mouseX = 0, mouseY = 0;
var windowHalfX = window.innerWidth / 2;
var windowHalfY = window.innerHeight / 2;
init();
animate();
function init() {
container = document.createElement( 'div' );
document.body.appendChild( container );
camera = new THREE.PerspectiveCamera( 45, window.innerWidth / window.innerHeight, 1, 2000 );
camera.position.z = 640;
// scene
scene = new THREE.Scene();
var ambient = new THREE.AmbientLight( 0x444444 );
scene.add( ambient );
var directionalLight = new THREE.DirectionalLight( 0xffeedd );
directionalLight.position.set( 0, 0, 1 ).normalize();
scene.add( directionalLight );
// model
THREE.Loader.Handlers.add( /\.dds$/i, new THREE.DDSLoader() );
var loader = new THREE.OBJMTLLoader();
loader.load( 'obj/male02/guitarOBJ.obj', 'obj/male02/male02_dds.mtl', function ( guitar ) {
guitar.rotation.x = 1.57;
scene.add( guitar );
} );
var geometry = new THREE.CylinderGeometry( 5, 5, 50, 32 );
var material = new THREE.MeshBasicMaterial( {color: 0xffff00} );
button1 = new THREE.Mesh( geometry, material );
button1.rotation.y = 1;
button1.rotation.z = 0.75;
scene.add( button1 );
var geometry = new THREE.BoxGeometry( 100, 100, 100 );
for ( var i = 0; i < geometry.faces.length; i += 2 ) {
var hex = Math.random() * 0xffffff;
geometry.faces[ i ].color.setHex( hex );
geometry.faces[ i + 1 ].color.setHex( hex );
}
var material = new THREE.MeshBasicMaterial( { vertexColors: THREE.FaceColors, overdraw: 0.5 } );
cube = new THREE.Mesh( geometry, material );
cube.position.y = 150;
scene.add( cube );
renderer = new THREE.WebGLRenderer();
renderer.setSize( window.innerWidth, window.innerHeight );
container.appendChild( renderer.domElement );
/////////document.addEventListener( 'mousemove', onDocumentMouseMove, false );
document.addEventListener( 'mousedown', onDocumentMouseDown, false );
document.addEventListener( 'touchstart', onDocumentTouchStart, false );
document.addEventListener( 'touchmove', onDocumentTouchMove, false );
//
window.addEventListener( 'resize', onWindowResize, false );
}
function onWindowResize() {
windowHalfX = window.innerWidth / 2;
windowHalfY = window.innerHeight / 2;
camera.aspect = window.innerWidth / window.innerHeight;
camera.updateProjectionMatrix();
renderer.setSize( window.innerWidth, window.innerHeight );
}
///function onDocumentMouseMove( event ) {
///mouseX = ( event.clientX - windowHalfX ) / 2;
///mouseY = ( event.clientY - windowHalfY ) / 2;
///}
function onDocumentMouseDown( event ) {
event.preventDefault();
document.addEventListener( 'mousemove', onDocumentMouseMove, false );
document.addEventListener( 'mouseup', onDocumentMouseUp, false );
document.addEventListener( 'mouseout', onDocumentMouseOut, false );
mouseXOnMouseDown = event.clientX - windowHalfX;
targetRotationOnMouseDown = targetRotation;
}
function onDocumentMouseMove( event ) {
mouseX = event.clientX - windowHalfX;
targetRotation = targetRotationOnMouseDown + ( mouseX - mouseXOnMouseDown ) * 0.02;
}
function onDocumentMouseUp( event ) {
document.removeEventListener( 'mousemove', onDocumentMouseMove, false );
document.removeEventListener( 'mouseup', onDocumentMouseUp, false );
document.removeEventListener( 'mouseout', onDocumentMouseOut, false );
}
function onDocumentMouseOut( event ) {
document.removeEventListener( 'mousemove', onDocumentMouseMove, false );
document.removeEventListener( 'mouseup', onDocumentMouseUp, false );
document.removeEventListener( 'mouseout', onDocumentMouseOut, false );
}
function onDocumentTouchStart( event ) {
if ( event.touches.length === 1 ) {
event.preventDefault();
mouseXOnMouseDown = event.touches[ 0 ].pageX - windowHalfX;
targetRotationOnMouseDown = targetRotation;
}
}
function onDocumentTouchMove( event ) {
if ( event.touches.length === 1 ) {
event.preventDefault();
mouseX = event.touches[ 0 ].pageX - windowHalfX;
targetRotation = targetRotationOnMouseDown + ( mouseX - mouseXOnMouseDown ) * 0.05;
}
}
//
function animate() {
requestAnimationFrame( animate );
render();
}
function render() {
guitar.rotation.y = button1.rotation.y = cube.rotation.y += ( targetRotation - cube.rotation.y ) * 0.05;
camera.lookAt( scene.position );
renderer.render( scene, camera );
}
</script>
答案 0 :(得分：0)
Check this fiddle here。它完全像你做的那样完成。
也许if子句有所作为？也许你不应该在网格正确加载之前尝试旋转一些东西？
if(mesh){
mesh.rotation.y += 0.02;
}
否则我会尝试简化代码以隔离问题。可能是困扰你的其他事情。