Unity, using decals as mask for object or post-processing shader. Canyon Demo

Demo video of a custom system made for a student project at the CNAM Enjmin.
The Decal Driven Effect System (DDES) give the ability to use decals like mask in object or post-processing shader.
In this demo, the DDES is used to apply an outline post-processing effect only to one object, and we also use it to modify the alpha of 2 distinct objects.
The DDES was made by altering the High Definition Render Pipeline (HDRP) thanks to the Custom Render Pipeline documentation.