LogInCheck out this post-process effect which can detect heat and learn how to set it up.
If you wanted to add Predator-vision or just a thermal detector to your UE4 project, we've got a tutorial just for you. A YouTuber Coreb Games has released a great educational video that will teach you how to set up a post-process effect that detects heat in Unreal. The tutorial is especially great for beginning Unreal Engine 4 artists because the author explains the entire process from start to finish and uses simple techniques to achieve the result.
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