Shadow Receiver HDRP (AR/MR Directional, Additional, & Area Light Shadows)

Shadow Receiver uses a custom shader to render real-time shadows onto any 3D object. The shadows can be cast from any real-time light in Unity!
Made for the High Definition Render Pipeline (HDRP).
Features
Real-time shadow receiving/casting onto invisible objects
Directional Light and Additional Lights support
Deferred and Forward supported
Set the shadow color
Set the shadow transparency
Enable or disable shadow types
Support for multiple shadow cascades
Support for soft shadows and hard shadows
Support for Light Layers
Support for shadow quality tiers
VR Supported (multi pass and single pass instanced)
Augmented Reality/Mixed Reality
Shadow Receiver is mostly used in AR/MR to render shadows on planes detected with plane detection. This way, an AR object can have realistic real-time shadows in AR. This creates a more immersive AR experience.
Of course, feel free to use this for any other project you see fit!
Video Compositing/Virtual Production
Shadow Receiver can be used well with video compositing in Unity. As long as your video uses alpha clipping to be able to cast shadows, you can get real-time shadows below it.
Technicals
Only works in High Definition Render Pipeline
Tested in Unity 2022.3LTS and Unity 6 (2021.3 should work unofficially)
Works with directional, additional, and area lights.