Let's (finally) fix the ShadowCatcher - User Feedback - Blender Developer Talk
How to setup a HDRI to get sharp shadows ? - Lighting and Rendering - Blender Artists Community
HDRI light setup vs just a color gives very different behaviour in how shadows are showing up :( how do I get them soft and diffused with HDRI? : r/blender
Correct Exposure of HDRI Environment Map in Blender | MeshLogic
How to use HDRI Environment in Blender | Blender Tutorials | A23D
Cycles] Ground for HDRi Environment (aka Shadow / Light Catcher) - Blender Tests - Blender Artists Community