Creating a rainbow in UE4?

Hi all, beginner UE gamedev here. I am attempting to add realistic rainbows to my photorealistic first person walking sim (one created by the spray of a large waterfall and one created post-rainfall). Does anyone have any tips as to the best practices/methods to creating rainbows entirely in UE4 (I don’t have any experience with PS, Maya etc)?

I appreciate any and all advice :slight_smile:

I don’t see how a rainbow could be that hard to model. Just download a free program like Blender (there are many tutorials on modelling) make a torus, cut it in half, and export it. The material might be difficult, but it would really just be a translucent texture with noise. You could use BSP for now, but it would be easier to make a static mesh.