Augment shadows on real objects

[pabuty]

Hi,

Is there a way to cast augment shadows on real world (like to cast the shadow on replica objects of the real world objects and then superimpose only the shadows on these objects on the real world footage)?

One option is that I calculate the shadow geometry myself and render it as a transparent object, but that would be very costly.

[KyryloKuzyk]

I would suggest turning on Plane Tracking with a special transparent shader that can accept shadows. Here is an example of one I found:
Matte Shadow page-2#post-4803875

Here is another link for URP:

Unity AR Foundation - How To Apply Shadows To Transparent AR Planes For More Realistic AR?

[pabuty]

Thank you. I hadn’t thought of this possibility. I looked for the HDRP compatible variant that I was looking for and found this:

Matte Shader (Only Shadows) in HDRP

Hi everyone, I'm using HDRP for my current project and I need to cast a shadow on a transparent plane. So far I found quite a bunch of tutorials on how to do that using regular Unity shaders in SRP, but none for HDRP (preferably using default shaders or Shader Graph). Thanks for your help!