This is very quick tutorial on make a double sided Materials in Blender 2.9 Timestamp 00:00​ Introduction 00:16 Create a Curved Surface 01:30 Double Sided Material Hope it is useful to you Thanks for ...

Create a layer of corroded material and a layer of concrete material. Place the corroded material outside the concrete and then cause the outer layer to corrode until it is gone. Timestamp 00:00​ ...