Visibility Transition?

Ok, so i made a mechanic where the AI is invisible and it’s eyes are only visible, but whenever it see’s the player, it’s whole body becomes visible, so this works, but i wanna know if i can make the AI become visible like the transition in this video? https://drive.google.com/file/d/15WM9ihZ8R79kfh-vutv9alm6C09AuDBM/view?usp=sharing

This could be done through the material. Creating a material function with scaler parameters that could be manipulated in the blueprint to the material instance.

I don’t know the math myself, but an example on the marketplace is Character Appearance and Dissolve in Visual Effects - UE Marketplace

which I have used effectively for create a spawn effect and a dissolve on death effect.

Regards,

Mark