Aurora Borealis: Breakdown

This is a mini breakdown/tutorial of the Aurora Borealis I made in UE4 for my scene Winter Cabin by the Lake. Hope it's useful to someone. :)
https://www.artstation.com/artwork/aYVDEq

This is a mini breakdown of how I made the Aurora Borealis shader in my Winter Cabin scene.

Step 1: Noise textures. Trying out different shapes will have a big impact on the overall look of the final Aurora Borealis in Unreal.
Step 2: Creating one or several meshes to apply the shader on.

Step 3: The Aurora Borealis master shader.

Final step: Placing out meshes in the sky and applying different material instances of the aurora shader.