Completely flat terrain?

Hoping someone might know how to do this. Is there a way to specify a portion of the globe which is rendered complely flat (like a traditional UE4 landscape)?

Thanks in advance :slight_smile:



Currently, there is no way to render a portion of the globe completely flat - the tiles inherently account for the curvature of the earth. If this is a feature you’d like to see in the plugin, I’d love to hear more about your use case - and, if there are other users looking for the same thing, please chime in!

Hello @agallegos, thank you for the reply!

The use-case is a sailing experience in the Caribbean. Including roughly the area of the Gulf of Mexico, Eastern coast of Florida, Central American Coastline and ending around Trinidad & Tobago.

Due to the nature of the sailing experience, we require a perfectly flat representation of the world, even if this comes with some distortion. It allows us to use less complex simulations for many areas (ocean surface, sailing and wind) while still representing a level of location realism.

I appreciate this isn’t as easy to implement as perhaps I had originally hoped, but this feature alone would certainly increase the usefulness of Cesium within Games, due to the expectation of traditional flat maps in most use-cases.

Thanks again,

Hi @Tylru,

I spoke with some of the developers and it looks like attempting to flatten out the world would be very complicated. It likely won’t be part of the plugin in the near future.

I agree that a flat map would certainly simplify development in a lot of areas. We have previously explored planetary gravity, you can read the issue here. In particular, the issue contains links to plugins that can approximate directional gravity in Unreal Engine. A solution like that may work for your use case. If you try it, please let us know how it goes!