Cesium's internal forward axis has always been +X, but glTF uses +Z. Recently Cesium gained more logic for trying to automatically detect glTF 1.0 vs 2.0 and adapt the forward axis accordingly. But the Cesuim preview window here was already configured for the previous +X system, so, the auto-detect is turned off for this project.
The Babylon and ThreeJS previews are not affected.
Cesium's internal forward axis has always been
+X, but glTF uses+Z. Recently Cesium gained more logic for trying to automatically detect glTF 1.0 vs 2.0 and adapt the forward axis accordingly. But the Cesuim preview window here was already configured for the previous +X system, so, the auto-detect is turned off for this project.The Babylon and ThreeJS previews are not affected.