Help: 3D Tileset Not Visible in Cesium for Unity v1.17.0 But visible in Unreal

Cesium for Unity
1

I’m struggling to display a 3D Tileset in Cesium for Unity (v1.17.0). Despite following various guides and adjusting settings, the Tileset remains invisible in both the Scene and Game views.I guess it may caused by wrong camera setting.

Project Details

  • Unity Version: 2022.3.59f1

  • Cesium for Unity Version: 1.17.0

Tileset Details

I’m using a local 3D Tileset with the following tileset.json :

{
  "asset": {
    "version": "1.0",
    "tilesetVersion": "TilesetPublisher.0.2.10.1",
    "extras": {
      "iTwinMaterials": [
        {"id": "0", "name": ""},
        {"id": "0x20000002dc4", "name": "Concrete_7: prostructures_materials"}
      ]
    }
  },
  "root": {
    "refine": "REPLACE",
    "geometricError": 2.003125,
    "boundingVolume": {
      "box": [-0.05, -0.05, -0.05, 32.05, 0, 0, 0, 32.05, 0, 0, 0, 32.05]
    },
    "content": {
      "uri": "6-0-0.glb",
      "boundingVolume": {
        "box": [0.0, 0.0, -0.012339673721214695, 15.0, 0, 0, 0, 17.5, 0, 0, 0, 22.795404326278785]
      }
    },
    "transform": [
      -7.865567022318265e-7, 0.9999999999996907, 0.0, 0,
      -7.865313016199744e-7, -6.186514668045046e-13, 0.9999999999996907, 0,
      0.9999999999993814, 7.865567022315832e-7, 7.865313016202177e-7, 0,
      6378137.0, -2.3729729661282895e-15, 8.903840934947754e-16, 1
    ]
  }
}
  • Tileset Location: Local file at C:\bim\geo\tileset\tileset.json

Current Setup

Based on the tileset.json, the Tileset origin appears to be at (Latitude: 0, Longitude: 0, Height: 0) in ECEF coordinates. I’ve configured the CesiumGeoreference as follows:

  • Latitude: 0

  • Longitude: 0

  • Height: 1000

  • Scale: 1 (tried 10 to enlarge the Tileset)

Camera Setup (DynamicCamera):

  • Position: (0, 0, 1000)

  • Rotation: (45, 0, 0)

Cesium3DTileset Setup:

  • Source: From URL

  • URL: file:///C:/bim/geo/tileset/tileset.json

Issue

Despite these settings, the Tileset is not visible in the Game or Scene view. Here’s what I’ve tried:

  1. Used Place Origin Here in the Cesium panel to align the Unity origin with (0, 0, 1000).

  2. Navigated in Play mode using WASD keys and checked the Scene view by focusing on the Cesium3DTileset bounding box

  3. Any other suggestions to make the Tileset visible?

Thank you for any insights or suggestions!

3

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