1. A concise explanation of the problem you’re experiencing.
When the camera move close to the gltf model I loaded, the mesh of the floor model is clipped. And the underlying globe surface is shown.
In the second figure, I move the camera closer to the ground. Then the grey floor mesh is clipped and the green globe surface (Imagery) is shown.
2. A minimal code example. If you’ve found a bug, this helps us reproduce and repair it.
3. Context. Why do you need to do this? We might know a better way to accomplish your goal.
I think that’s bug. Because every time I move closer to the model mesh., the mesh will be clipped.
4. The Cesium version you’re using, your operating system and browser.
Cesium version: 1.51
Operation System: Win10
Browser: Chrome 70.0.3538.102