Hello, The municipality of Rotterdam is trying out using Unity with our Cesium tilesets (www.3drotterdam.nl). Unfortunately the instanced tilesets do not seem to work. Are they supported in Unity? We’ve tried it with: Trees https://www.3drotterdam.nl/datasource-data/b9294d5b-79e0-4744-ac88-b61e3e…

Hi @Jorri , welcome to the community! As @Tom_Lee said, unfortunately, no, Cesium for Unity does not support instancing yet. Instancing is available in Cesium for Unreal, though, in case that helps at all.

Instanced (i3dm) tilesets in Unity

Cesium for Unity

Marco13 June 16, 2025, 2:46pm 10

@Kevin_Ring this may refer to the thread by @Jorri at Problem with instanced tilesets

Topic		Replies	Views
I3DM support in Unity Cesium for Unity	3	53	July 26, 2024
Problem with instanced tilesets Cesium for Unreal	7	50	June 17, 2025
Instanced 3d tileset: poor performance with large object model Cesium for Unreal	1	43	October 1, 2024
Does it support loading i3dm？ Cesium for Unreal	9	614	June 4, 2024
Using 3d Tiles with Unity CesiumJS	1	1037	February 18, 2019

Instanced (i3dm) tilesets in Unity

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