Why my model show black in cesium 3d-tiles scene

Who encountered such a problem

We’ve had other users report seeing black models: https://github.com/AnalyticalGraphicsInc/cesium/issues/3737

Do you have an example we could test with?

-Hannah

The issue at #3737 has just been closed and may resolve your issue. Look for the change in Cesium 1.45 on May 1, or get it now in the master branch on GitHub https://github.com/AnalyticalGraphicsInc/cesium.