Procedural Material Contest Winners: Part 1

First of all, thanks to all of you who participated in the contest and to our friends at NVIDIA for sponsoring!
The response from the community has been overwhelming and with more than 250 materials submitted, the Jury had a pretty hard time selecting the winning entries.

Winners are separated into 2 groups for this contest. The per-category winners are being revealed today!
The talented artists who scored in the Top 3 of a category will bring home a Substance Live Pro license.

The global top 3 winners will be announced separately tomorrow Friday.
To clarify, this means that these 3 will not appear in today's category ranking.

Can you guess who landed a spot on the global podium?