Question Synthetic image marker not possible to edit with URP

hello @cam415,

Yes, that happens when you dont have selected any synthetic marker image in the synthetic marker inspector

Just after selecting a marker your synthetic marker shows in the scene and the message disappears as shown here


pretty much you should see the same images you have in the selected marker library in the MARS Session in the synthetic marker library. you just need to select which one to use and you should be good to go

 

@cam415 Ah okay, I misunderstood; the issue is that all your whole inspector is disabled, not just the synthetic marker.

Could you "Resync" the simulation? (Click on the "Resync" button in the simulation controls in the MARS Panel). Would that enable it again?

 

@cam415 for the time being that's fine, but seems that after resyncing the simulation doesnt enable your inspector. If you create another synthetic marker can you select an image?. What about plain image markers; are they selectable?

 

Ok That's really strange. What OS are you running, what platform are you building for and does it happens on a clean project using URP?

 

Excellent, I will take a look into this and will report back. Thanks!

 

@cam415 alright, good news and bad news.

Bad news is its a bug and I am looking into it. The good news is that there is a workaround for the time being if you are using URP with synthetic markers.

So. To modify that synthetic marker what you should do is:
1. Create a synthetic marker and save the environment (hit the resync button and click "save")
2. click on the edit button to edit the scene in the environment hierarchy (from the mars panel)


3. after clicking there you will be able to edit your environment. Search for the synthetic marker you created and you should be able to change the markers and do stuff!


After that you should have your synthetic marker working on the scene view and reflected the additions you add with your image markers




This will be fixed on the next release. Let me know if you have any issue with the workaround

 

@lei77 That's strange. Lets check several things.
1. Do you have an image marker library assigned in the MARSSession game object? if yes, what does it says? (screenshot would be enough)
2. Can you please share a screenshot of the inspector for the asset located in

Assets/MARS/Settings/Resources/MarkerProviderSettings.asset

3. What OS and Unity version are you using?
4. Can you check if you have a file called

MarsMarkerLibraryTest_arf

5. Can you check that your ARFoundation and ARCore versions are the same in the package manager (also please share the versions)

 

Hello @lei77
I see your issue. You are missing also the AR Foundation package (version 2.1.8 also). (MARS AR Foundation providers connects mars with ARFoundation only)

 

@lei77 This is strange. The issue could be with ARCore (https://github.com/Unity-Technologies/arfoundation-samples/issues/119)

Can you check two things for me:
1. Do you have spaces in the directories between the name of the project, the subdirectories and the path where you put the images?
2. Do you have your culture settings on your machine set to user Commas instead of periods for float numbers?

Try not using spaces between your file paths for your images and set your culture settings on your machine to use periods for float numbers.

Finally, just to be 100% sure you have everything set up; can you show me how the

MarkerProviderSettings

shows up on your inspector.