I would like to use Cesium in a Solar System simulation in Unity, I use a stationary Floating Origin player and the Solar system is moved in response to Player move inputs. Earth is placed into the Scene like in the image below, and moved by moving the Scene node(s) above it. How can I do this with Cesium?
Hi @cosmochristo,
I don’t think you should have to do anything special. Have you tried it, and it didn’t work? What went wrong?
My one suggestion is that you may want to set your CesiumGeoreference to “True Origin” mode instead of Longitude/Latitude/Height. That way the center of the GameObject will be the center of the Earth, rather than some point on the Earth. That will make it easier to transform as needed.
Thanks @Kevin_Ring , I will try that. I have only tried manual changes so far, with mixed results. I need know how to do this via Scripts and Cesium API calls.
@Kevin_Ring Unfortunately, the True Origin setting puts the Earth where my player is (always at the origin). What I want to be able to do is something like this: https://youtu.be/Bc_N9jGG9Ug
Here are three views from putting the Cesium Earth under a hierarchy and displacing it back from the player/camera. This is with the Geocentric setting.
As you can see, there are rendering problems at these distances.
Yes, it puts the center of the Earth at the origin of the GameObject’s local coordinate system. But then you can translate/rotate/scale the local coordinate system, just as with any GameObject, to put it wherever you like in the world.
Typically you want to transform the CesiumGeoreference game object, rather than the Cesium3DTilesets nested inside it.
ok, to be clear, “the GameObject’s local coordinate” is referring to the “CesiumGeoreference game object”? I will try putting that into the hierarchy and moving it. Thanks for the clarification.
So it works after a fashion. The main trouble I am having is that Cesium cuts off long before any significant distance from the planet. A z value on the Georeference node of 6,970,000 is about the limit and rendering is already going wrong before that. Worse, when I hit Run, nothing is rendered: no planet!
