Placing objects in different terrains/scenes causes their location to suddenly reset to…origin?

[StroutFrout]

Hi There!

When working in the “main” scene that pre-existed setting up Gaia 2023, I am able to place objects on that terrain and its associated scene without issue. I am able to manipulate and stamp other scenes and their associated terrains without issue.

However, if I try to place a model on _any_ other terrain, its location will shift immediately after deselection. Once I deselect the model, the model will suddenly shift its location to a corner of the terrain and specifically below the terrain. I’ve tried doing this is multiple terrains and different models but it will always shift to the corner of the specific terrain where the model was placed. As mentioned, there is a single “main” scene that I started with which does not exhibit this issue. Is there something unique I need to do when working with models in different Gaia created scenes/terrains?

 

Thanks in advance!

[Bryan]

We are looking into this! 

[Peter]

Hi @StroutFrout,

please excuse the delayed response! The behavior you are describing has to do with floating point precision in larger scenes. Gaia tries to spawn things close to the world origin, which means that during a spawn terrains will be temporarily moved to the center of the scene. If you had placed a game object on the terrain, that would need to be moved as well in order for the spawn to be correct (if you e.g.had collision masks in the spawner setup that look for objects on the terrain)
In order to do so, Gaia will shift all top level objects in the terrain scenes around together with the terrains. To work around this issue, you should be able to place the objects as child object of the terrain, or create an object container object on the root level of the terrain scene (which will then snap to the terrain corner), then place your object in there.
This should allow you to place your objects on a fixed spot on the terrain and this position should "survive" the shifts Gaia makes e.g. when spawning.
 

[StroutFrout]

Thank you for the detailed response. The solution of adding a parent game object to the scene and placing objects within it seems to resolve the issue. Thank you for the help!