Tools:
Blender - Modelling , UVmapping
GIMP - Texturing
Texture Packer - Texture Atlas
UE4 - Game Engine
2 Materials ( 1 for the scene and 1 chorme for the ball )
Scene material:
1 Base Color 4K
1 Roughness 4K
1 Normal Map 4K
Hahaha. Firing chrome spherical objects things (the proper word is *'d out). That makes me happy.
Looking good, have you expanded your knowledge with your material editor you can change the color of the same material if you know how to break up the repetitive look 