三.js Raycaster intersectObjects [英] three.js Raycaster intersectObjects

问题描述

我正在尝试从三个修改这个示例.js 通过鼠标点击控制字符.首先，当我单击画布时，我需要鼠标坐标并使用 THREE.Raycaster.intersectObjects 将其转换为 3D 空间坐标.在修改后的代码中，鼠标左键向上，我有以下内容:

I'm trying to modify this example from three.js to control the character(s) with mouse clicks. First, when I click on the canvas, I need the mouse coordinates and convert that into 3D space coordinates using THREE.Raycaster.intersectObjects. In the modified code, on left mouse up, I have the following:

var vector = new THREE.Vector3((event.clientX / window.innerWidth) * 2 - 1, -(event.clientY / window.innerHeight) * 2 + 1, 0.5);
var projector = new THREE.Projector();
projector.unprojectVector(vector, camera);

var raycaster = new THREE.Raycaster(camera.position, vector.sub(camera.position).normalize());

var intersects = raycaster.intersectObjects(objects);

if (intersects.length > 0) {
    console.log('intersect: ' + intersects[0].point.x.toFixed(2) + ', ' + intersects[0].point.y.toFixed(2) + ', ' + intersects[0].point.z.toFixed(2) + ')');
}
else {
    console.log('no intersect');
}

我已将地面网格添加到 objects 数组，但是当我单击地面网格时 raycaster.intersectObjects 仍然返回空数组.我也尝试传入 scene.children 而不是 objects，但没有成功.

I have added the ground mesh to the objects array, but raycaster.intersectObjects still returns empty array when I click on the ground mesh. I also tried passing in scene.children instead of objects, but no luck.

这是完整的修改源.

推荐答案

显然，陀螺仪是问题所在.取出这些线，我得到相交工作.不确定这是错误还是功能.

Apparently, Gyroscope is the problem. Taking out these lines, and I get intersects working. Not sure if this is a bug or feature.

var gyro = new THREE.Gyroscope();
gyro.add( camera );
characters[ Math.floor( nSkins/2 ) ].root.add( gyro );

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