Hi @liangelzy ,
Thanks for your post.
Judging from the appearance of the screenshot you provided, it appears something is off with the tilingScheme you are using. It is hard to know without access to the source data. I believe the rectangle you set (-180.0, -90.0, 180.0, 90.0) would be correct for WGS84. But the fact that only half your map is plotting to the 2D globe makes me suspect the rectangle and projection don’t line up.
As for what formats/projections Cesium supports, here is a thread with information and links to help answer that What data formats/projections does Cesium support? - #6 by Scott_Reynolds
Please let us know if you have further questions.
Thanks,
Luke