How to trigger custom facial emotions?

Unreal Engine Questions
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1

I want to adapt my avatar’s facial emotions to the user.
I am using a python component to analyze user’s facial emotions and send it via an OSC server to unreal engine.

The goal is to read those user emotions (e.g. “happy”) and then trigger a “Joy” emotion on my Metahuman using Convai facial Anim class.

Best,
Navid

2

Hello,

It’s possible to manually force a specific emotion animation, but keep in mind that the character’s LLM won’t be aware of this forced emotion. It will only affect the visual animation.

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3

Dear Kaan,

Thank you for the reply!

I do not mind if the LLM does not know about the emotion update. I basically want to start with a basic if condition that when IsHappy is true, preform a happy emotion, and I did the following under Set Emotion under Event Graph’s set emotion component under Convai_Metahuman_FaceAnim:

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but when I run the project the emotion does not perform. Do you know what might be wrong here?

Best,
Navid

4

I found this post: How to use character initial emotions

Here they perform the happy animation by pressing the key “X”

I think this is under Convai Base Character, Event Graph.

I did it there, it did not work.

I tried triggering the emotion on the Metahuman’s Blueprint on Event Begin Play. The animation play for 1 second and quickly goes back to Neutral.

Where can I lock emotions?

5

Could you please add a small delay at the beginning?

6

This worked! Thanks.

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