RotateOrthographicCamera

环绕球面旋转的正射相机，继承自 BaseOrthographicCamera。

构造函数

new G3D.RotateOrthographicCamera(scene);

名称	类型	描述
scene	G3D.Scene	相机所属的场景

const camera = new G3D.RotatePerspectiveCamera(scene);
camera.alpha = 60;
camera.beta = 45;
camera.radius = 100;