I have encounter 2 issues when I upload the models to Cesiums.
I have created a photogrammetry model from Reality Capture with Geo-reference Data, I am trying to upload it on the Cesium. I manage to upload to model that will sit on the WGS84 Ellipsoid, but I want to try to create a model that will be sitting on Google Photorealistic 3D tiles.
The main challenge I am encountering with the different terrains is that the elevation of each seems to differ by up to 20metres +/- which I assume indicates they are using different geoid heights/ coordinate systems. We have been exporting an UAV models from Reality capture following the WGS84 system which works well with the WGS84 ellipsoid terrain as one would expect but due to the elevation difference of the terrains as mentioned above, we cant get it to automatically clamp to the surface of the other terrain systems.
Is there any method that’s allows the model to export and co-ordinate our data in line with the base model provided by Cesium? Specifically the Google Photorealistic 3D tiles.
I have two photogrammetry models captured from locations on the same street but a short distance apart. Both models contain RTK data, and one of them includes a curved hill. When I directly upload these models to Cesium, there’s a noticeable difference in the Z-axis alignment. The model with the curved hill appears to be significantly higher than the one that is flat on the Z-axis. Are there any solutions to align these two models together?