THREE.js について知ったばかりで、その機能に魅了されています。私は自分のコードを書くのに十分なほど進んでいないので、私が必要としている、またはそれに近いことを正確に行うための例を見つけようとしてブラウジングしてきましたが、これまでのところ役に立ちません:(
私が取り組んでいるのは、マウスを使用してオブジェクトを移動するコードです。X 軸は正常に機能しますが、Y 軸はオブジェクトを左右に傾けるのではなく、オブジェクトの周りを回転します。
私の現在のコード:
var container, stats;
var camera, scene, renderer;
var group, text, plane;
var targetRotationX = 0;
var targetRotationOnMouseDownX = 0;
var targetRotationY = 0;
var targetRotationOnMouseDownY = 0;
var mouseX = 0;
var mouseXOnMouseDown = 0;
var mouseY = 0;
var mouseYOnMouseDown = 0;
var windowHalfX = window.innerWidth / 2;
var windowHalfY = window.innerHeight / 2;
var finalRotationY
var center
init();
animate();
function init() {
camera = new THREE.PerspectiveCamera(100, window.innerWidth / window.innerHeight, 0.1, 10000 );
camera.position.z = 1000;
camera.eulerOrder = "YXZ"
scene = new THREE.Scene();
// lights
light = new THREE.DirectionalLight( 0xffffff );
light.position.set( 1, 1, 1 );
scene.add( light );
light = new THREE.DirectionalLight( 0x002288 );
light.position.set( -1, -1, -1 );
scene.add( light );
light = new THREE.AmbientLight( 0x222222 );
scene.add( light );
var geometry = new THREE.BoxGeometry(1400, 100, 700, 10, 10, 10);
var material = new THREE.MeshBasicMaterial({color: 0xfffff, wireframe: true});
var cube = new THREE.Mesh(geometry, material);
//cube.position.set( center.x, center.y, center.z );
//cube.geometry.applyMatrix(new THREE.Matrix4().makeTranslation( -center.x, -center.y, -center.z ) );
renderer = new THREE.WebGLRenderer( { antialias: true, alpha: true } );
renderer.setSize( window.innerWidth, window.innerHeight );
container = document.getElementById( 'container' );
container.appendChild( renderer.domElement );
group = new THREE.Object3D();
group.add(cube)
scene.add(group);
// renderer
//stats = new Stats();
//stats.domElement.style.position = 'absolute';
//stats.domElement.style.top = '0px';
//container.appendChild( stats.domElement );
document.addEventListener( 'mousedown', onDocumentMouseDown, false );
document.addEventListener( 'touchstart', onDocumentTouchStart, false );
document.addEventListener( 'touchmove', onDocumentTouchMove, false );
//
window.addEventListener( 'resize', onWindowResize, false );
//for debuging stats
interval = setInterval( debugInfo, 50 );
}
function modelLoadedCallback(geometry) {
mesh = new THREE.Mesh( geometry, material );
group.add(mesh);
scene.add( group );
}
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 onDocumentMouseDown( event ) {
event.preventDefault();
document.addEventListener( 'mousemove', onDocumentMouseMove, false );
document.addEventListener( 'mouseup', onDocumentMouseUp, false );
document.addEventListener( 'mouseout', onDocumentMouseOut, false );
mouseXOnMouseDown = event.clientX - windowHalfX;
targetRotationOnMouseDownX = targetRotationX;
mouseYOnMouseDown = event.clientY - windowHalfY;
targetRotationOnMouseDownY = targetRotationY;
}
function onDocumentMouseMove( event ) {
mouseX = event.clientX - windowHalfX;
mouseY = event.clientY - windowHalfY;
targetRotationY = targetRotationOnMouseDownY + (mouseY - mouseYOnMouseDown) * 0.02;
targetRotationX = targetRotationOnMouseDownX + (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;
targetRotationOnMouseDownX = targetRotationX;
mouseYOnMouseDown = event.touches[ 0 ].pageY - windowHalfY;
targetRotationOnMouseDownY = targetRotationY;
}
}
function onDocumentTouchMove( event ) {
if ( event.touches.length == 1 ) {
event.preventDefault();
mouseX = event.touches[ 0 ].pageX - windowHalfX;
targetRotationX = targetRotationOnMouseDownX + ( mouseX - mouseXOnMouseDown ) * 0.05;
mouseY = event.touches[ 0 ].pageY - windowHalfY;
targetRotationY = targetRotationOnMouseDownY + (mouseY - mouseYOnMouseDown) * 0.05;
}
}
//
function animate() {
requestAnimationFrame( animate );
render();
//stats.update();
}
function render() {
//horizontal rotation
group.rotation.y += ( targetRotationX - group.rotation.y ) * 0.1;
finalRotationY = (targetRotationY - group.rotation.x);
if (group.rotation.x <= 1 && group.rotation.x >= -1) {
group.rotation.x += finalRotationY * 0.1;
}
if (group.rotation.x > 1) {
group.rotation.x = 1
}
else if (group.rotation.x < -1) {
group.rotation.x = -1
}
renderer.render( scene, camera );
}
function debugInfo()
{
//$('#debug').html("mouseX : " + mouseX + " mouseY : " + mouseY + "</br>")
}<style>canvas { width: 100%; height: 100% }</style><script src="http://threejs.org/build/three.min.js"></script>
<div id="container"></div>私が望んでいたのは、マウスをクリックして左右に動かすと、マウスが上下に動かない限り、ボックスがマウスに向かって傾き、同じ「X」回転を維持することです。現在、カメラは対応する方向に傾くのではなく、オブジェクトの周りを回転しているように見えます。
何か案は？