您好,
可以通过限制相机过于贴近模型来控制不让模型继续放大,
以下是相机的简单控制方法
scene.screenSpaceCameraController.enableRotate = false;//禁止旋转
scene.screenSpaceCameraController.enableTranslate = false;// 禁止移动
scene.screenSpaceCameraController.enableZoom = false;//禁止缩放
scene.screenSpaceCameraController.enableTilt = false;//禁止倾斜相机
scene.screenSpaceCameraController.enableLook = false;
let cameraHeight = 1000
//相机高度最小值,即控制放大级别
scene.screenSpaceCameraController.minimaZoomDistance = cameraHeight * 2
//相机高度最大值,即控制缩小级别
scene.screenSpaceCameraController.maximumZoomDistance = cameraHeight * 3
希望能够帮助到您