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Thread: Shadow Catcher question

  1. #1
    Registered User protogenes's Avatar
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    Shadow Catcher question

    Does anyone know how to get the new Shadow Catcher in LW 2018 to have a plain object just show a shadow from an object sitting on it, be transparent and not have the environment image displayed on it?

    Thanks.
    Brain! Brain? We know nothing of brain!

  2. #2
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    You could try turning off Global Illumination in the Render Properties=>Global Illumination panel, or uncheck the "Sample Backdrop" button.

    mTp

  3. #3
    Registered User protogenes's Avatar
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    Quote Originally Posted by MonroePoteet View Post
    You could try turning off Global Illumination in the Render Properties=>Global Illumination panel, or uncheck the "Sample Backdrop" button.

    mTp
    Neither of those work. I'd like the plain to become transparent and only show the shadow, like the old node did in LW 2015 for example.
    Brain! Brain? We know nothing of brain!

  4. #4
    geo messy madno's Avatar
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    I am confused by your question.

    2018 and 2015 seem to work similar.

    2015 GI on
    Click image for larger version. 

Name:	2015-GI-on.png 
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ID:	142469

    2015 GI off
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Name:	2015-GI-off.png 
Views:	26 
Size:	980.4 KB 
ID:	142470

    2018 GI on
    Click image for larger version. 

Name:	2018-GI-on.png 
Views:	30 
Size:	1.19 MB 
ID:	142472

    2018 GI off
    Click image for larger version. 

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Views:	30 
Size:	1.20 MB 
ID:	142471

  5. #5
    Quote Originally Posted by protogenes View Post
    Neither of those work. I'd like the plain to become transparent and only show the shadow, like the old node did in LW 2015 for example.
    mmm the material node in 2015.3 did not have any transparency settings.

    Now Denis did have a Shadows plugin inside of DPKit, http://dpont.pagesperso-orange.fr/pl...l_Nodes_2.html
    Last edited by MSherak; 08-07-2018 at 07:02 PM.
    I was thinking of the immortal words of Socrates - "I Drank What??"

  6. #6
    Registered User protogenes's Avatar
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    Quote Originally Posted by madno View Post
    I am confused by your question.

    2018 and 2015 seem to work similar.

    2015 GI on
    Click image for larger version. 

Name:	2015-GI-on.png 
Views:	35 
Size:	1.05 MB 
ID:	142469

    2015 GI off
    Click image for larger version. 

Name:	2015-GI-off.png 
Views:	26 
Size:	980.4 KB 
ID:	142470

    2018 GI on
    Click image for larger version. 

Name:	2018-GI-on.png 
Views:	30 
Size:	1.19 MB 
ID:	142472

    2018 GI off
    Click image for larger version. 

Name:	2018-GI-off.png 
Views:	30 
Size:	1.20 MB 
ID:	142471
    I want the ground plane to be transparent, only showing the shadow, like the node used to do.
    Brain! Brain? We know nothing of brain!

  7. #7
    Quote Originally Posted by protogenes View Post
    I want the ground plane to be transparent, only showing the shadow, like the node used to do.

    This is 2015.3 nodal version of shadow catcher. If I hear what your saying then the torus below the plane should be visible. As you can see there are no options for transparency in the Material. Again wondering if you are thinking of the Shadows plugin from DPKit. It is not a material so you can plug it into and channel.
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

Name:	Capture.PNG 
Views:	15 
Size:	208.7 KB 
ID:	142480  
    I was thinking of the immortal words of Socrates - "I Drank What??"

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