Cycles Shadow Catcher Creating Multiple Shadows #55916

New Issue

Beau Gerbrands · 2018-07-11T14:50:25+02:00

Beau Gerbrands commented

2018-07-11 14:50:25 +02:00

Hi,

This .blend file will demonstrate two shadow catchers overlapping each other and creating double shadows. It would perhaps be interesting to add a termination value for the amount of shadows cast or just removed entirely.

Thanks!
Beau

System:
Windows 10 64 bit

Blender 2.79b f4dc9f9d68

shadow_catcher_double_shadows.blend

Hi, This .blend file will demonstrate two shadow catchers overlapping each other and creating double shadows. It would perhaps be interesting to add a termination value for the amount of shadows cast or just removed entirely. Thanks! Beau System: Windows 10 64 bit Blender 2.79b f4dc9f9d68b ![shadowdy.JPG](https://archive.blender.org/developer/F3913224/shadowdy.JPG) [shadow_catcher_double_shadows.blend](https://archive.blender.org/developer/F3913180/shadow_catcher_double_shadows.blend)

Beau Gerbrands commented

2018-07-11 14:50:25 +02:00

Added subscriber: @Beaug

Bastien Montagne commented

2018-07-11 14:53:23 +02:00

Added subscriber: @mont29

Bastien Montagne commented

2018-07-11 14:53:23 +02:00

Changed status from 'Open' to: 'Archived'

Bastien Montagne closed this issue

2018-07-11 14:53:23 +02:00

Bastien Montagne self-assigned this 2018-07-11 14:53:23 +02:00

Bastien Montagne commented

2018-07-11 14:53:23 +02:00

Empty report…

Please follow our submission template and guidelines, also read these tips about bug reports, and make a complete, valid bug report, with required info, precise description of the issue, precise steps to reproduce it, small and simple .blend and/or other files to do so if needed, etc.

Empty report… Please follow our [submission template and guidelines](https:*developer.blender.org/maniphest/task/edit/form/1/), also read [these tips about bug reports](https:*wiki.blender.org/wiki/Process/Bug_Reports), and make a complete, valid bug report, with required info, precise description of the issue, precise steps to reproduce it, **small and simple** .blend and/or other files to do so if needed, etc.

Beau Gerbrands changed title from ~~Cycles Shadow Catcher Creating~~ to Cycles Shadow Catcher Creating Multiple Shadows

2018-07-11 14:57:59 +02:00

Bastien Montagne was unassigned by Beau Gerbrands

2018-07-11 14:57:59 +02:00

Beau Gerbrands self-assigned this 2018-07-11 14:57:59 +02:00

Beau Gerbrands commented

2018-07-11 14:57:59 +02:00

Changed status from 'Archived' to: 'Open'

Beau Gerbrands reopened this issue

2018-07-11 14:57:59 +02:00

Beau Gerbrands commented

2018-07-11 15:06:10 +02:00

In #55916#518020, @mont29 wrote:
Empty report…

Please follow our submission template and guidelines, also read these tips about bug reports, and make a complete, valid bug report, with required info, precise description of the issue, precise steps to reproduce it, small and simple .blend and/or other files to do so if needed, etc.

Hi Bastien, something went wrong, could you make this valid again?

> In #55916#518020, @mont29 wrote: > Empty report… > > Please follow our [submission template and guidelines](https:*developer.blender.org/maniphest/task/edit/form/1/), also read [these tips about bug reports](https:*wiki.blender.org/wiki/Process/Bug_Reports), and make a complete, valid bug report, with required info, precise description of the issue, precise steps to reproduce it, **small and simple** .blend and/or other files to do so if needed, etc. Hi Bastien, something went wrong, could you make this valid again?

Beau Gerbrands was unassigned by Bastien Montagne

2018-07-11 16:14:14 +02:00

Sergey Sharybin was assigned by Bastien Montagne

2018-07-11 16:14:14 +02:00

Bastien Montagne commented

2018-07-11 16:14:14 +02:00

Added subscriber: @Sergey

Bastien Montagne commented

2018-07-11 16:14:14 +02:00

@Sergey iirc that was your work?

Tautvydas Andrikys commented

2019-04-27 20:11:35 +02:00

Added subscriber: @esminis

Tautvydas Andrikys commented

2019-04-27 20:11:35 +02:00

I don`t think this is a bug as shadow catcher does not block shadow, if you add 10 stacked shadow catchers they all will catch same shadow.

Sergey Sharybin was unassigned by Dalai Felinto

2019-12-23 16:36:06 +01:00

Philipp Oeser commented

2020-01-29 18:19:20 +01:00

Added subscriber: @lichtwerk

Philipp Oeser commented

2020-01-29 18:19:20 +01:00

Changed status from 'Confirmed' to: 'Needs Developer To Reproduce'

Philipp Oeser commented

2020-01-29 18:19:20 +01:00

Can confirm the behavior
This might very well not be a bug, but a limitation instead.

However, I would also expect (in an ideal world) to somehow not have the shadow catcher pick up a shadow if it has already been picked up by another.
Havent done any research on how to achieve this, just saying...

Maybe @Sergey wants to share his wisdom?

Can confirm the behavior This might very well not be a bug, but a limitation instead. However, I would also expect (in an ideal world) to somehow not have the shadow catcher pick up a shadow if it has already been picked up by another. Havent done any research on how to achieve this, just saying... Maybe @Sergey wants to share his wisdom?

Jacques Lucke commented

2020-02-12 12:09:52 +01:00

Added subscribers: @brecht, @JacquesLucke

Jacques Lucke commented

2020-02-12 12:09:52 +01:00

Maybe @brecht knows if this is a known limitation of the Cycles shadow catcher.

Just for quick reference, this is how the file looks like:

Note, the intersection of the cube with the top plane is not necessary.

Maybe @brecht knows if this is a known limitation of the Cycles shadow catcher. Just for quick reference, this is how the file looks like: ![image.png](https://archive.blender.org/developer/F8336210/image.png) Note, the intersection of the cube with the top plane is not necessary.

Brecht Van Lommel commented

2020-02-17 12:18:09 +01:00

Changed status from 'Needs Developer To Reproduce' to: 'Confirmed'

Philipp Oeser removed the

Download

What's New

Blender Studio

Manual

Developers Blog

Documentation

Benchmark

Blender Conference

Development Fund

One-time Donations

Cycles Shadow Catcher Creating Multiple Shadows #55916