Middle of this page should answer your questions:  https://library.vuforia.com/content/vuforia-library/en/articles/Solution/Targets.html

It is not platform dependent as far as I know.

Hello,

We recommend that you do not exceed tracking ten (10) simultaneous 2D targets, and two (2) simultaneously tracked Object Targets. Vuforia Model Targets current imposes a maximum of one (1) target that can be tracked at a time.

These settings are not platform dependent, but they can be device dependent when considering the device specs. There's no Vuforia Engine API that monitors the device's performance, but we tend to watch CPU, GPU and/or capture frame rate as evidence that a device's performance is suffering.

Here are the Vuforia APIs to control these settings:

• 2D targets: https://library.vuforia.com/content/vuforia-library/en/reference/unity/classVuforia_1_1VuforiaConfiguration_1_1GenericVuforiaConfiguration.html#a4166fb9b79e7268dd7d19ad2b34e0044
• 3D targets: https://library.vuforia.com/content/vuforia-library/en/reference/unity/classVuforia_1_1VuforiaConfiguration_1_1GenericVuforiaConfiguration.html#a2241ba507325067bc726d83c8563e04c

Thanks,

Vuforia Engine Support

Thank you for answer my question.

medabit wrote:

Hello,

We recommend that you do not exceed tracking ten (10) simultaneous 2D targets, and two (2) simultaneously tracked Object Targets. Vuforia Model Targets current imposes a maximum of one (1) target that can be tracked at a time.

These settings are not platform dependent, but they can be device dependent when considering the device specs. There's no Vuforia Engine API that monitors the device's performance, but we tend to watch CPU, GPU and/or capture frame rate as evidence that a device's performance is suffering.

Here are the Vuforia APIs to control these settings:

• 2D targets: https://library.vuforia.com/content/vuforia-library/en/reference/unity/classVuforia_1_1VuforiaConfiguration_1_1GenericVuforiaConfiguration.html#a4166fb9b79e7268dd7d19ad2b34e0044
• 3D targets: https://library.vuforia.com/content/vuforia-library/en/reference/unity/classVuforia_1_1VuforiaConfiguration_1_1GenericVuforiaConfiguration.html#a2241ba507325067bc726d83c8563e04c

Thanks,

Vuforia Engine Support

I'm trying to make an AR project with 2 target models, when I try, insert the two 3D models into the camera frame, Vuforia can only detect one object, after tracking one Target Model, the other target models won't be tracked

is there a way so that when another target model is detected, it can automatically switch tracking to another target model?

it's a bit troublesome if it can only detect one target model,I really need to make sure that only one target model fits into the camera frame considering my project there are so many target models that are close to each other

Hello,

I think in this case you could check the Core Example asset from the Unity Asset Store . Please check the 3-ModelTargets scene from the assets/SamplesResources/Scenes folder. There is an example for Advance model Target database which actually will scan 2 different model targets( the Mars Viking Lander and the RZR_Toy). When it recognize one of the object it will start tracking and will display the augmentation. You can calling RESET voice command restart the tracking,

You can also use a model target with a guided view. In this case it  will scan only one  guided view  at specific time - where the guided view projection - 2D guide is displayed

BR

Vuforia Engine Support