A simple model crashes performance to single digit FPS

Cesium ion
1

Hi, so while testing annotations I just noticed very bad performance of my story in ION.

The model is not complicated like 200 verticies, 8mb with textures
asset is 3070833 I loaded as bim/cad model
tried to to upload as 3d model 3070861 same results

If I add either of two to my story it will kill performance to 3 FPS.

I’m trying to use it with photo grametery model 2991044 that I use as a base and that model alone works perfectly fine, when I combine the 2 the performance drops 20x

Can you help me why

I attach a blender export glb as well here.
basen export glb 12x6.glb (8.6 MB)

2

Hi Maciej,

Thanks for letting us know about this. I was able to tile and load that asset and did not see a performance impact on my computer. In order to try and figure out what is going on can you provide some additional information.

  • Is the performance impact just in Stories or is it any time you view the asset? For example viewing assets 3070833 / 3070861 in the in the preview pane or a sandcastle?
  • Does this happend if you make a new story and only add that asset? If so what terrain are you using?
  • What operating system, browser and version you are using?

Thanks

3

The preview window in assets is just fine

it is the story that is killing the PC

I use win11 64Gb RAM RTX2080 with 6Gb VRAM and 12 Core Ryzen 3900 so it should be ok.
Chrome and Vivaldi in latest version both experience the same problem

https://ion.cesium.com/stories/viewer/?id=db2f1daf-30cc-45d0-8d44-d76c55c6c826

Check this story it does not work for me Orbiting the pool kills the performance

but both models loaded to the sandcastle are just fine

4

Thanks for sharing that. We have identified at least one performance issue (#11923) that may be contributing to this. We are looking into how to best resolve that problem.

5

With the recent update everything is back to butter smooth

1 Like
6

Great to hear that @Maciej_Eckstein . We appreciate you bringing this to our attention. Your feedback helps up make the product better :slight_smile: