Chaos Corona Forum

Chaos Corona for Cinema 4D => [C4D] I need help! => Topic started by: peka on 2021-08-19, 10:05:36

Title: ShadowCatcher
Post by: peka on 2021-08-19, 10:05:36

MacOSX 11.5.4, c4d R24, Corona 7 final
I have a problem with the ShadowCatcher. I get neither shadows nor caustics. When I give the plane a normal material, I see both. What am I doing wrong here? The main image is on a backplate and the light comes from an HDRI and a lamp from the left.

Title: Re: ShadowCatcher
Post by: Beanzvision on 2021-08-19, 13:42:13

Hi, It's a bit hard to know what's happening without seeing the scene file. If that can be sent to us via our private uploader, that would be great. When saving from C4D, please use the ''save project with assets'' option to ensure everything remains linked. That can then be zipped and sent to us. https://corona-renderer.com/upload

I did a quick test here and it seems to be working for me.

(https://forum.corona-renderer.com/index.php?action=dlattach;topic=34114.0;attach=152714;image)

Title: Re: ShadowCatcher
Post by: peka on 2021-08-20, 13:15:13

Thank you very much, I have uploaded the file!

Title: Re: ShadowCatcher
Post by: TomG on 2021-08-20, 13:39:41

Quote from: peka on 2021-08-20, 13:15:13

Thank you very much, I have uploaded the file!

Best to let us know the file name here, so we can spot the right upload that is associated with this thread :)

Title: Re: ShadowCatcher
Post by: peka on 2021-08-20, 23:17:56

The filename is: Bath_scene_pk

Title: Re: ShadowCatcher
Post by: Beanzvision on 2021-08-23, 11:17:46

Thanks, we'll check it out.

Title: Re: ShadowCatcher
Post by: peka on 2021-09-08, 15:35:27

Hi Beanzvision
Did you find out anything?

Title: Re: ShadowCatcher
Post by: bnji on 2021-09-08, 18:54:52

Hi @peka


Almost everything was ok in your scene file, here are my suggestions:
-Use the Corona Sky object instead of the C4D sky + Light Material (I know you're using HDRI Link, but it can be used with the Corona Sky as well)
-You don't have to change the Material Mapping mode for the ShadowCatcher material tag. Right now you have set it to use the Camera Mapping mode and other adjustments. Default values should work.
-The Backplate material (a Corona Light material) should never have the "Emit light" option turned on.
I'm attaching the rendered image after modifying the file.
Regards.

Title: Re: ShadowCatcher
Post by: peka on 2021-09-10, 16:11:45

Thank you, Benjamin, for your efforts!
I have set everything as you described. But unfortunately I still don't get the effect you show in the rendered image. Could you please provide me with the modified c4d file so that I can check all the settings? I already have the textures.

Kind regards
Peter

Title: Re: ShadowCatcher
Post by: bnji on 2021-09-10, 21:07:51

Hi @peka
Sure, I'm including the modified file.
I'll send you the pass by PM.
Regards.

Title: Re: ShadowCatcher
Post by: peka on 2021-09-14, 14:10:09

Thank you Benjamin
There are really subtle details to consider. I have learned a lot again!
Kind regards
Peter