Unreal Error when parsing tileset JSON, error code 3 at byte offset 0

Cesium for Unreal
1

Hi there,

So I uploaded a pointcloud (las file) to cesium ion. Cesium ion converted it to 3D tiles.
I am trying to get it to show up in Unreal engine version 4.27.2. But I keep getting this error for both assets:

LogCesium: Error: [2022-09-22 15:06:56.325] [error] [ErrorList.h:72] Failed to load https://assets.cesium.com/1324120/0/0.pnts?v=1: - Error when parsing tileset JSON, error code 3 at byte offset 0

LogCesium: Error: [2022-09-22 15:10:56.947] [error] [ErrorList.h:72] Failed to load https://assets.cesium.com/1324024/2/2.pnts?v=1: - Error when parsing tileset JSON, error code 3 at byte offset 0

Double clicking sends the view to the right position but I can’t see the pointcloud. I use a accestoken created in cesium ion and on the the ion platform itself the pointcloud does show up in the viewer. Just not in unreal. I have the lidar plugin installed. Any ideas on how to solve this problem?

Best regards,
Roel

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2

Hello @RoelHop, welcome to the forum.

Cesium for Unreal doesn’t currently support point cloud tilesets , though experimental progress on this feature has been made in this branch. Are you using a plugin build from that experimental branch, or are you using the plugin from a release/UE marketplace?

-Alex

3

Hi Alex,

I am currently using version 1.17.0 from the marketplace.
I’ll try the branch you mentioned.

4

Hi Alex,

I see all the latests builds have failed on that branch.
Is there a build I can use?

Best regards,
Roel

5

Hello @agallegos and @RoelHop even I am facing the same issue.
I think we can convert our .las files into 3D tileset offline in our computer and then upload them to Cesium for unreal. I wish it might work. I will keep you posted.

1 Like