等距相机与THREE.js

要获得等轴测图,您可以使用OrthographicCamera.然后,您需要正确设置相机的方向.有两种方法可以做到这一点：

方法1 – 使用camera.lookAt()

var aspect = window.innerWidth / window.innerHeight;
var d = 20;
camera = new THREE.OrthographicCamera( - d * aspect,d * aspect,d,- d,1,1000 );

camera.position.set( 20,20,20 ); // all components equal
camera.lookAt( scene.position ); // or the origin

方法2 – 设置camera.rotation的x分量

camera.position.set( 20,20 );
camera.rotation.order = 'YXZ';
camera.rotation.y = - Math.PI / 4;
camera.rotation.x = Math.atan( - 1 / Math.sqrt( 2 ) );

小提琴：http://jsfiddle.net/q3m2kh5q/

three.js r.73