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Shadow catcher receive shadows even if there is no light in the scene
Open, Needs Triage by DeveloperPublic


System Information
Operating system: Windows
Graphics card: GeForce GTX 1080 Ti

Blender Version
Broken: version: 2.80 (sub 75), branch: master, commit date: 2019-07-29 14:47, hash: f6cb5f54494e, type: build date: 2019-07-29, 09:44 AM
Worked: -

Short description of error
See my attached .blend file for an example and the screenshot for additional infos.

If you set the light object power to "0", then the shadow catcher object receives shadows. But there is no light in the scene.
I've set the world light to "0" too. This should not happen.

Exact steps for others to reproduce the error

  • Open my blend file.
  • Set one of the top views to "Rendered". Use the Cycles renderer.
  • Set the light power to "0" now.
  • The shadow catcher on the ground receives shadows then, but there is no light in the scene anymore. This isn't what I expect. Actually there shouldn't be any shadows around the box.

Do I misunderstand something when using the shadows catcher or is this an error?