Driver using Depsgraph to retrieve current View Layer name fails when rendering in EEVEE #96028

New Issue

Ethan-Hall · 2022-02-25T10:06:13+01:00

Ethan-Hall commented

2022-02-25 10:06:13 +01:00

Blender Version
Broken: version: 3.0.1, branch: master, commit date: 2022-01-25 17:19, hash: dc2d180181

Short description of error
I tried to make a driver reference the current View Layer as Animation: Passing Dependency Graph to Drivers seems to enable. However, it only seems to work if I click the render button on the Render Layers node in the compositor. Rendering with F12 results in the expression depsgraph.view_layer.name evaluating to whatever the first View Layer is named.

Video Demonstration
Viewlayer Depsgraph Problem.mp4

Exact steps for others to reproduce the error
After you allow execution of scripts, you can test rendering with F12 versus using the buttons render buttons on the Compositor Render Layers nodes.
DG_VL_Render.blend

**Blender Version** Broken: version: 3.0.1, branch: master, commit date: 2022-01-25 17:19, hash: `dc2d180181` **Short description of error** I tried to make a driver reference the current View Layer as [Animation: Passing Dependency Graph to Drivers](https://developer.blender.org/rB686ab4c9401a90b22fb17e46c992eb513fe4f693) seems to enable. However, it only seems to work if I click the render button on the Render Layers node in the compositor. Rendering with F12 results in the expression depsgraph.view_layer.name evaluating to whatever the first View Layer is named. **Video Demonstration** [Viewlayer Depsgraph Problem.mp4](https://archive.blender.org/developer/F12886403/Viewlayer_Depsgraph_Problem.mp4) **Exact steps for others to reproduce the error** After you allow execution of scripts, you can test rendering with F12 versus using the buttons render buttons on the Compositor Render Layers nodes. [DG_VL_Render.blend](https://archive.blender.org/developer/F12886418/DG_VL_Render.blend)

Ethan-Hall commented

2022-02-25 10:06:13 +01:00

Added subscriber: @Ethan-Hall

Omar Emara commented

2022-02-25 10:41:19 +01:00

Added subscriber: @OmarEmaraDev

Omar Emara commented

2022-02-25 10:41:19 +01:00

Getting the view layer name doesn't seem to be failing. If I print it, I get View Layer 1 followed by View Layer 2. But I can reproduce the render you get, investigating.

Getting the view layer name doesn't seem to be failing. If I print it, I get `View Layer 1` followed by `View Layer 2`. But I can reproduce the render you get, investigating.

Omar Emara commented

2022-02-25 10:59:40 +01:00

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

Omar Emara commented

2022-02-25 10:59:40 +01:00

It seems this works for Cycles but not for EEVEE. But I am not sure if this is an issue with the rendering pipeline or just EEVEE wrongly reusing the previous evaluated material.

Ethan-Hall commented

2022-02-25 11:06:33 +01:00

Still using EEVEE, I copy pasted the driver into the Y Location of the object's transform, and the location showed the same behavior as the material. So, it's not just using the previous material.

Ethan-Hall changed title from ~~Driver using Depsgraph to retrieve current View Layer name fails when rendering~~ to Driver using Depsgraph to retrieve current View Layer name fails when rendering in EEVEE

2022-02-25 11:06:49 +01:00

Loren Osborn commented

2022-07-04 05:26:03 +02:00

Added subscriber: @linux_dr

Philipp Oeser removed the

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Driver using Depsgraph to retrieve current View Layer name fails when rendering in EEVEE #96028