Author Topic: Shadow catcher for compositing  (Read 914 times)

2019-01-25, 09:54:34

malindis

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Hi,
I'm trying to use a shadow catcher with Alpha Mode set to compositing to render an image with my object and the shadow on a transparent background...

This is working but my rendered image has some king of noise (see picture).

Why is that ? am I doing something wrong ?

Thanks for your help.

Regards

2019-01-25, 10:34:18
Reply #1

beanzvision

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Do you have denoising on?


2019-01-25, 10:41:38
Reply #2

malindis

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Yes,
But my surface behind is a shadow catcher so it's not visible and, as mentioned in the shadow catcher tuto, I have in corona scene environment checked the direct visibility override with a black material...

2019-11-24, 16:31:02
Reply #3

MGDesignUK

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Was this issue ever sorted out or a solution found please?
We're having the same issues at the moment.
MG Design UK - 3D Visualisation Studio Based In Surrey

2019-11-25, 09:03:00
Reply #4

malindis

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I don't think so :-(

2019-11-25, 09:59:22
Reply #5

dipozzo

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Disable Reflection from shadow catcher material

2019-11-26, 18:58:21
Reply #6

Br0nto

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We set our GI/AA settings to 64, and that seemed to fill in the shadow noise nicely. We also didn't bother with the environment replacement- we just put the shadowcatcher on the floor, used a compositing tag to tell everything else not to be visible to camera (but still cast shadows), and that seemed to work fine. This requires two renders, but this way the shadows get one setting and the object itself gets another (in our case we set GI/AA to 4 for our object pass, to help with anti-aliasing and animation flickering).