how to disable the polyline depthtest ,i draw the line on 3dtiles but was hidden by tiles cesium1.48

1. A concise explanation of the problem you're experiencing.

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.

4. The Cesium version you're using, your operating system and browser.

Can you clarify what behavior your looking for? Perhaps a before and after image?

Thanks,

Gabby

You might find the solution/discussion here helpful:

https://groups.google.com/d/msg/cesium-dev/7dDrg0hhru0/Hivrk4JRDQAJ