Three

照相机 正交 ： THREE.OrthographicCamera(left, right, top, bottom, near, far) 远景（透视） ： THREE.PerspectiveCamera(fov, aspect, near, far) 相机观察点位置 ： camera.lookAt(new THREE.Vector3(0, 0, 0)); 材质 MeshBasicMateria

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