seperarate shadow catcher into two passes (shadow and reflections)
Just ran into a situation where I'd like to only have the shadow catchers reflections but not the shadow.
So instead of just having a shadow catcher pass, have:
shadow catcher shadows
shadow catcher reflections.
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In fact, it would be great to have Shadow Catcher and Reflection Catcher passes with corresponding alpha channels to be able to export them as PNG/TIFF and composite them in external software to get Object + Shadow/Reflection for it on a transparent background. It is currently impossible due to requirement of "Alpha Over" node to make them work in the first place, which limits Shadow Catcher pass to Blender's internal Compositor only, which kinda defeats the purpose.
I know this feature was "on the list" 3 years ago. It's still not there and no one mentions it for 3.5 or later. While this is absolutely crucial to have a reflection catcher or "matte" for basic compositing or vfx.
2025 and still no news about this.