如何在Three.js轴上旋转3D对象？

这是我使用的两个功能。它们基于矩阵旋转。并可以绕任意轴旋转。要使用世界上的轴旋转，您需要使用第二个函数rotateAroundWorldAxis（）。

// Rotate an object around an arbitrary axis in object spacevar rotObjectMatrix;function rotateAroundObjectAxis(object, axis, radians) {    rotObjectMatrix = new THREE.Matrix4();    rotObjectMatrix.makeRotationAxis(axis.normalize(), radians);    // old pre for Three.JS pre r54:    // object.matrix.multiplySelf(rotObjectMatrix);      // post-multiply    // new pre for Three.JS r55+:    object.matrix.multiply(rotObjectMatrix);    // old pre for Three.js pre r49:    // object.rotation.getRotationFromMatrix(object.matrix, object.scale);    // old pre for Three.js r50-r58:    // object.rotation.setEulerFromRotationMatrix(object.matrix);    // new pre for Three.js r59+:    object.rotation.setFromRotationMatrix(object.matrix);}var rotWorldMatrix;// Rotate an object around an arbitrary axis in world space       function rotateAroundWorldAxis(object, axis, radians) {    rotWorldMatrix = new THREE.Matrix4();    rotWorldMatrix.makeRotationAxis(axis.normalize(), radians);    // old pre for Three.JS pre r54:    //  rotWorldMatrix.multiply(object.matrix);    // new pre for Three.JS r55+:    rotWorldMatrix.multiply(object.matrix);     // pre-multiply    object.matrix = rotWorldMatrix;    // old pre for Three.js pre r49:    // object.rotation.getRotationFromMatrix(object.matrix, object.scale);    // old pre for Three.js pre r59:    // object.rotation.setEulerFromRotationMatrix(object.matrix);    // pre for r59+:    object.rotation.setFromRotationMatrix(object.matrix);}

因此，您应该在

anim

var xAxis = new THREE.Vector3(1,0,0);rotateAroundWorldAxis(mesh, xAxis, Math.PI / 180);