A way to show shadow only

hi,

 

i'm looking way make layer show there shadow hitting (shadow created lights in ae)

 

like when can toggle option 'casts shadows' 'only' - i'm trying equivalent 'accepts shadows'.

 

any suggestions work around?

 

thanks

work duplicate of comp white. use pre-comp 2d layer in main comp. invert it, extract shadows e.g. using shift channels set lightness, invert back.

 

mylenium

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