Adjusting globe orientation

Cesium for Unity
1

Is there a way to adjust the orientation of the CesiumGeoreference vs. just the position? Trying to set the rotation from the Transform creates lots of issues.

2

Setting the rotation on the Transform is the normal way to do it. What issues are you running into?

3

The tiles are separating from each other and loading in oddly.

image
image892×387 53.7 KB

4

If I hit the refresh tileset button, the issue seems to get fixed. But obviously I don’t want to reload the whole tileset every time I rotate the Georeference.

5

Hi @A_D,

Can I confirm what version of Cesium for Unity are you using? I can’t reproduce this on the most recent release (1.0.0).

6

That should be what I’m running. On Unity 2022.1.0f1. I downloaded the samples package from git yesterday. I’ll try a fresh download and see if I can reproduce.

7

Ok, so yeah, fresh download running on 2021.3.7f1 this time and I can still produce the issue.
Here are my steps:

  • Run the CesiumWorld scene
  • Select the CesiumGeoreference GameObject and set the rotation to something like 45
  • Fly around the scene (flying backwards towards space is easiest) and notice the tiles are doing what I posted in the picture
8

Ah, you mean setting the rotation of the CesiumGeoreference at runtime, not in edit mode. Yes, I can reproduce the issue. Thank you for your report.

I wrote up something on Github so we can keep track of the bug: Changing a `CesiumGeoreference`'s transform at runtime causes tile displacement. · Issue #275 · CesiumGS/cesium-unity · GitHub

9

Great, thank you! Is a new version of the plugin coming anytime soon?

10

We release on a monthly cycle, so the next version of Cesium for Unity won’t be out until May. I’ll try to bump this bug and see if we can get a fix for it in the next release. Whenever it happens, I’ll be sure to bump this thread! :slight_smile:

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11

It looks like this didn’t get fixed in the May (1.1.0) release. Any update on when this will be addressed? Thanks!

12

Hi @A_D,

We just merged a fix for this to main and plan on shipping it as a patch release: Only recompute the ECEF transformation if a GlobeAnchor's _local_ transformation changes by kring · Pull Request #302 · CesiumGS/cesium-unity · GitHub.

13

Hi @A_D,

To update, we just released Cesium for Unity v1.2.0, which contains the aforementioned fix. Feel free to try it out and let us know how it goes!

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