Hi Julia. Blender's built-in exporters can't handle procedural materials so POMegranate can't be exported. Unreal and Unity have their own POM nodes so you could simply use the same height map and not need to export anything.

It depends how you want to mix the textures. The POMegranate node doesn't do any mixing but you can have more than one POM node in a material so you could have one for each texture and then mix the textures with a Color Mix node. If you want to mix the Height textures, you'd have to create a mixed version of the height maps beforehand and then use that as the Height map for a POM node.

@@nodesandnoodles Thanks for the fast reply back..

It does indeed. It works in both Cycles and Eevee but is best in Eevee. Cycles is limited in texture reads.

@@nodesandnoodles I am also wondering where did you get the crystal material, because I would love to use it in my latest project.

I got the crystal PBR set from Textures.com www.textures.com/download/PBR0579/138828 Unfortunately, it's not available for free so you'll need a subscription to get it.

@@nodesandnoodles i wish i could get it so bad...