Here are some of the ice meshes I sculpted for Aphelion project at Don't Nod.
I created "stamps" that I used as booleans in ZBrush. I made sure to always use the same stamps for all assets so that the ice would share a consistent visual language and shapes.
I created the UVs using polygroups, used Decimation Master for retopology, and baked everything in Substance Painter.
Hope you like it!
The ice shader and textures was made by my talented colleagues
https://www.artstation.com/khael
https://www.artstation.com/vincentgagnon