Blocks often feature "Parallax Occlusion Mapping" (POM) to give flat surfaces a physical, bumpy appearance.

Ensure you have OptiFine or the Iris/Oculus mod installed.

This filename appears to be a digital asset package, likely a or shader collection, released in November 2022. 📦 File Overview Name: Realium3D Version/Date: 2022-11 (November 2022 Release)