我有一个 PlaneGeometry，我想修改悬停顶点的 z 位置，但我不知道如何检索它。
//THREE.WebGLRenderer 69
// Generating plane
var geometryPlane = new THREE.PlaneGeometry( 100, 100, 20, 10 );
for (var vertIndex = 0; vertIndex < geometryPlane.vertices.length; vertIndex++) {
geometryPlane.vertices[vertIndex].z += Math.random();
}
geometryPlane.dynamic = true;
geometryPlane.computeFaceNormals();
geometryPlane.normalsNeedUpdate = true;
var materialPlane = new THREE.MeshLambertMaterial( {
color: 0xffff00,
side: THREE.DoubleSide,
shading: THREE.FlatShading,
overdraw: 0.5,
vertexColors: THREE.FaceColors
} );
plane = new THREE.Mesh( geometryPlane, materialPlane );
plane.geometry.colorsNeedUpdate = true;
// Mouse event
container[0].addEventListener( 'mousemove', onMouseMove, false );
function onMouseMove( event ) {
var mouseX = ( event.clientX / window.innerWidth ) * 2 - 1;
var mouseY = -( event.clientY / window.innerHeight ) * 2 + 1;
var vector = new THREE.Vector3( mouseX, mouseY, camera.near );
vector.unproject( camera );
raycaster = new THREE.Raycaster( camera.position, vector.sub( camera.position ).normalize() );
if ( intersects.length > 0 ) {
// Change the z position of the selected vertice
var selectedVertice = ???
selectedVertice.position.z +=5;
}
}
最佳答案
如果问题涉及一个顶点而不是整个对象，也许您可以:
1-在intersects[0].face
中检索相交面
2- 该面可能包含 3 个顶点(可能是 THREE.Face3):找到与交点 intersects[0].point 最近的顶点 V。
3-改变V.z
我不知道它是否有效:这是一个想法......;)
关于javascript - 更改鼠标悬停时的顶点位置，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/27255027/