Rendering is prevented if all view layers in current scene are disabled, even if other scenes are used in compositor #75071

New Issue

Sam Brubaker · 2020-03-25T00:41:15+01:00

Sam Brubaker commented

2020-03-25 00:41:15 +01:00

Version: 2.82a (Linux 64-bit)

View_Layer_bug.blend

How to reproduce:

Open the attached file and render a frame
In the outlier, disable rendering either "Layer A" OR "Layer B" and render a frame again. No problems so far.

Now disable rendering for both view layers and try to render.

The expected outcome is that the background scene will still be rendered and compositing will be performed, outputting an image containing neither of the view layers. Instead, the whole process is aborted and the user receives an error message. One workaround is to enable the view layer "View Layer", causing it to be rendered even though it is unused in the compositor, but this should not be necessary.

It makes sense to warn the user if all the view layers are disabled, but it doesn't make sense to abort the render when there could be many cases in which this is intentional.

Version: 2.82a (Linux 64-bit) [View_Layer_bug.blend](https://archive.blender.org/developer/F8427629/View_Layer_bug.blend) How to reproduce: - Open the attached file and render a frame - In the outlier, disable rendering either "Layer A" OR "Layer B" and render a frame again. No problems so far. # Now disable rendering for both view layers and try to render. The expected outcome is that the background scene will still be rendered and compositing will be performed, outputting an image containing neither of the view layers. Instead, the whole process is aborted and the user receives an error message. One workaround is to enable the view layer "View Layer", causing it to be rendered even though it is unused in the compositor, but this should not be necessary. It makes sense to *warn* the user if all the view layers are disabled, but it doesn't make sense to abort the render when there could be many cases in which this is intentional.

Sam Brubaker commented

2020-03-25 00:41:15 +01:00

Added subscriber: @rocketman

Germano Cavalcante commented

2020-03-25 19:55:41 +01:00

Added subscriber: @mano-wii

Germano Cavalcante commented

2020-03-25 19:55:41 +01:00

Changed status from 'Needs Triage' to: 'Confirmed'

Germano Cavalcante commented

2020-03-25 19:55:41 +01:00

I can confirm.
It is interesting that the background View Layer is rendered even if you disable it.
It seems that there is a bad logic that, if you disable all View Layers of the scene used, the render is canceled.
And wokaround really reveals this bug.

I can confirm. It is interesting that the background View Layer is rendered even if you disable it. It seems that there is a bad logic that, if you disable all View Layers of the scene used, the render is canceled. And wokaround really reveals this bug.

blender-admin commented

2020-05-14 02:43:17 +02:00

This issue was referenced by 2c61b7f354

This issue was referenced by 2c61b7f3541064e57a11a8347efd08ce85a5907e

Brecht Van Lommel commented

2020-05-14 02:48:03 +02:00

Changed status from 'Confirmed' to: 'Resolved'

Brecht Van Lommel closed this issue

2020-05-14 02:48:03 +02:00

Brecht Van Lommel self-assigned this 2020-05-14 02:48:03 +02:00

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Rendering is prevented if all view layers in current scene are disabled, even if other scenes are used in compositor #75071

Now disable rendering for both view layers and try to render.