Hi Guillaume,

In the case of virtual cameras, you should use the SEQ pins.
Begin by enabling SEQ on the camera's path:

You can find more information about SEQ here: https://aximmetry.com/learn/virtual-production-workflow/green-screen-production/virtual-camera-workflow/camera-sequencer/

Then, you can do the following logic to make the camera look at an object:

Scene Node 1 represents the location of your camera, while Scene Node 2 represents the location of your NDI source displayed on a Rectangle. You can adjust how Scene Node 1 is oriented towards Scene Node 2 by modifying the Binding Type pin in Scene Node 1.
You could move the NDI source display or the camera by connecting a transformation to the Scene Nodes' Transformation pin.

To keep an object in focus, set the focus distance to match the distance between the camera and the object. This distance is the length between Scene Node 1 and Scene Node 2, which you can calculate like this:

These above examples apply to scenes rendered by Aximmetry. If you're using Unreal Engine to render the scene, you can still implement the logic between Scene Node 1 and Scene Node 2. However, you'll need to retain Scene Node 2's location (NDI source display) somehow. If you're using Aximmetry to obtain GPS coordinates and convert them into scene positions, simply connect that transformation to Scene Node 2's Transformation input pin. If the transformation data is generated in Unreal Engine, it will be more challenging, as there is currently no built-in method to send data from Unreal to Aximmetry directly.

Warmest regards,

Ok, thank you, I understand !
My GPS coordinates are converted into scene positions in Unreal using this blueprint.

Is there a way to do something similar in aximmetry ?

thanks

Hi,

Yes, there are similar modules in Aximmetry:

I am not exactly sure what those functions do in your Unreal Blueprint, so I can't provide specific guidance on how to recreate them in Aximmetry. However, I suggest you consider using either the Geo Location's Lat Long pin:

Or the Geo Transform pin with a Geo Transformation module:

Warmest regards,