Is Vertex Shading like in this video possible?

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So I’m looking to use a sort of dodge/burn effect on my terrain like Blizzard do in this video, is it possible? are there any tutorials around showing how to do it?

Thanks guys.

It’s pretty straight forward, UE4 already has vertex painting that works well out of the box, you just have to make a material that blends the vertex color with the base color.

Vertex color node Vertex Color Materials | Unreal Engine Documentation

Blend nodes Blends | Unreal Engine Documentation