A similar approach was taken by Pixar when making the beach environment for the Piper short that was previewed with Finding Dory. It was absolutely mind-blowing.
https://www.fxguide.com/fxfeatured/the-tech-of-pixar-part-1-...
Related but unlinked Part 2 on other aspects of Finding Dory:
https://www.fxguide.com/fxfeatured/the-tech-of-pixar-part-2-...
This is really neat - thanks for sharing!
I was on the RenderMan team at the top and remember thinking it really neat that our system could stand up to that.
I remember find it mind blowing when I learned that in Brave, the artists weren't just using a texture/displacement mapped surface for the clothing and armor. They were using tori primitives for the chain mail, and curve primitives for the clothing. (I.e., the clothing actually woven out of curve primitives for the threads.)