How to get an Element with shadow only

[lcrivell]

Hi,
I have a scene with a background environment and a plane with a wrapper material to be a shadow catcher.
I would like to render the scene, but just with the objects and their shadows, not the background. The Shadow element does only give the shaded part of my object, not the shadow on the shadow catcher. How can I have this one ?

Thanks !

[joconnell]

Try the matte shadow element. Tick on shadows in your materials wrapper object too.

[sharktacos]

Hi,
I have a scene with a background environment and a plane with a wrapper material to be a shadow catcher.
I would like to render the scene, but just with the objects and their shadows, not the background. The Shadow element does only give the shaded part of my object, not the shadow on the shadow catcher. How can I have this one ?

Thanks !

Apologies if I am misunderstanding your question, but to get a shadow on the ground plane you would could to use a wrapper material with "matte surface" "shadows" & "affect alpha" all selected, and the "alpha contribution" set to -1.0. This will give you the shadow in the alpha. To simplify things I also usually tick "receive GI" off so it does not affect the shadows in the alpha (For the GI contribution be correct this would need to be output as a colored alpha).

[Svetlozar Draganov]

Hi,
I have a scene with a background environment and a plane with a wrapper material to be a shadow catcher.
I would like to render the scene, but just with the objects and their shadows, not the background. The Shadow element does only give the shaded part of my object, not the shadow on the shadow catcher. How can I have this one ?

Thanks !

Would it be possible to send this scene for investigation?