How can i stream both body and face with Live Link ?

Development Cinematics & Media Virtual Production
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1

Hello everyone,
my question is very simple: How can I stream both facial motion capture (live link face) and body motion capture (Optitrack) data at the same time? Because on Live Link I can’t check both ARKit source and optitack source. Separately it works very well I can see in real time the motion capture of the face or the body but impossible to see both?
What is the trick?

(I’m in Unreal engine 5.5 windows with Opttirack plugin (its works) , Live link face on iphone 12)

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You can just connect the nodes one by one, or use the Apply Additive node to combine them, as shown here

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Another way to drive a metahuman BP with LL Optitrack for body and Arkit for face. Add a Live Link Skeletal Animation Component to both the Optitrack source and the Metahuman BP. Parent the Metahuman BP under the source. I am assuming you have setup a Retargeting asset that has Ik for Optitrack Source and IK for the Metahuman Body.

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