LAST UPDATED: 17 November 2021
The Universe handles setting up SPICE, spawning objects into the scene (including Cesium elements) and setting the starting simulation date and time. It can be added to the scene using the Add Nom Universe node.
Many other functions and objects in Nominal require a reference to the Universe. As such, it is recommended to store a reference to the Universe. You can do this by right-clicking on the return value and selecting promote to variable.
NOTE: The Nominal Universe MUST be the first node added to any simulation demo. This is because many components require a known reference to the Universe.
Once created, the Universe can be accessed by any blueprint, provided it is called after the BeginPlay event on the LevelBlueprint:
There are a number of input parameters required by the Universe system. By default, all of these can be set to the default values and the Universe will function correctly. However, these inputs can be modified to create different simulations.
This is a default UE4 Scene Component variable. It can be left to the default self target.