The project demo is completed, this demo project is under creative commons, you can do what you want with its content.

Here is a list of the changes made;

1. Added a displacement shader effect with shader parameters

2. Added pushable RigidBody box as example of pushable object

3. Added wall object that is static as example of non pushable object

4. Configured Physics collision masks for world, player and items

5. Added a basic light effect attached to the player

6. Added a smooth camera to the player

7. Added Physics Material to RigidBody for friction and controled bounce

8. Fixed shader bug affecting the player when Y Sort is enabled