double shadows with AR meshes/planes stacked on top of each other

I've run into the problem of shadows doubling on top of each other throughout my AR dev history, but with the new iPadPro and meshing, it's become blatantly obvious in many cases.

I need a shader that can occlude, render shadows from objects in AR, and also BLOCK shadows from hitting any objects behind it, without actually casting a shadow itself.

Have googled this up, down, forwards, and backwards, can't figure it out.

Take a look at the video for a visual example of when this happens.

 

Hi Edwon, have you figured out how to solve this? Or is there a shader that can both occlude and render shadows in ar foundation?

 

Hi, did you solve that? Created AR URP project, shadows only shader to AR plane, and many shadows appear because AR planes are getting on each other