Shadow Catcher - Evee mode - Best way?

[eloifaitvriller (Eloi)]

Hello every one !

For a video-mapping project - I would like to render ONLY the shadow of the building - What is the best way to catch the shadow (evee mode) ?

Thank you very much !!!

[goorman (Sergey)]

Blender Tips - Render Only Shadows Cycles and Eevee