I'm not looking for a full script, but just the way I would do it. I have looked around for an answer and have found nothing.
✓ ANSWER ACCEPTED
How should I animate a player thumbnail/character and insert it into a GUI?
1 answer
✓ Accepted answer
You can use Viewport Frame.
Article: https://developer.roblox.com/en-us/articles/viewportframe-gui
You can animate the player's character using a moon animator (or your preferred Roblox animator), publish it, script it, then use the Viewport Frame on it. That's the only way I know.
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4 comments
Use tween service
You can tween a players thumbnail?
I don't see any way to do it
I think I literally just happened to stumble upon an answer using ViewPortFrames. I will answer this question if it works