1. A concise explanation of the problem you're experiencing.
Looking for example B3DM file with RTC_CENTER. This is new in the 1.0 branch of the 3D tiles spec, but I couldn't find any test file that has this feature.
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 want to validate against a test-file that is conform with the 1.0 spec of batched 3d models.
4. The Cesium version you're using, your operating system and browser.