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Automatic rescale after ground plane placing

July 18, 2019 - 6:37am #1

Vuforia SDK Version: Vuforia 8.1.11 -

Description with steps to reproduce: Steps to reproduce:
1. Set your project in the same way as on the provided screenshots (can be found on Google Drive) or use Vuforia Sample Applications
2. Deploy your project to the mobile device
3. Run the game
4. Tap on any flat surface to place the ground plane
5. Move your phone a little bit

Expected result:
Assets won't change their scale

Actual result:
Assets can change their scale a little bit or a lot (the closer is the phone, the bigger assets will become)

Attachments:
https://drive.google.com/open?id=1PghBARvf4lndBGJnnwMF2ZoRDwSDfGCe -

Development OS (Mac OS X, Windows, Linux): Windows 10 -

Mobile OS and Version: Android 8, 9 -

Mobile Device Manufacturer and Model name: Samsung S7, S9 -

Do the Vuforia Sample Applications show the same behavior?: Yes, you can see it on VuforiaSample.mp4 video from attachments.

Automatic rescale after ground plane placing

July 19, 2019 - 6:36pm #7

olver, just so you know ARCore is not supported on the S7 when using Vuforia which might be your issue.

https://library.vuforia.com/articles/Solution/vuforia-fusion-supported-devices.html

 

 

Automatic rescale after ground plane placing

July 19, 2019 - 12:28pm #6

Hello,

Thanks for the responses. We also observe dynamic scale changes when running the Ground Plane feature on certain devices. Typically, they can be more pronounced when using Vuforia VISLAM, but have also been observed with running ARCore.

Unfortunately, there's is really nothing you can do to prevent this. Sometimes it is related to the environment, sometimes it is just a poor performing device. Regardless, scaling changes can occur and the only way to "fix" incorrectly scaled objects is by changing the augmentation size.

Thanks,

Vuforia Engine Support

Automatic rescale after ground plane placing

July 19, 2019 - 3:04am #5

Hello, thank for the reply, I've tried it with installed ARCore by Google tool and the problem is still here in my app and Vuforia Sample, also I've tried to use ARCore plugin in Unity and it didn't help too

Automatic rescale after ground plane placing

July 19, 2019 - 1:31am #4

medabit wrote:

Hello,

Is ARCore installed on these devices? This will provide the best possible performance, especially with the scaling changes you've described.

Thanks,

Vuforia Engine Support

 

I am currently using ARCore version 1.4.0. I used version ARCore version 1.6.0 earlier, but she showed herself even worse on my phone (Samsung S7).

 

AttachmentSize
Image icon Core.PNG7.69 KB
Plain text icon AndroidManifest.txt2.94 KB

Automatic rescale after ground plane placing

July 18, 2019 - 2:44pm #3

Hello,

Is ARCore installed on these devices? This will provide the best possible performance, especially with the scaling changes you've described.

Thanks,

Vuforia Engine Support

Automatic rescale after ground plane placing

July 18, 2019 - 6:56am #2

I have the same problem. Please fix it.

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