problem saving/loading driver on shader node #68971
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Reference: blender/blender#68971
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System Information
Operating system: Linux-4.13.10-041310-generic-x86_64-with-debian-stretch-sid 64 Bits
Graphics card: GeForce GTX 1050/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 390.67
Blender Version
Broken: version: 2.81 (sub 3), branch: master, commit date: 2019-08-20 22:35, hash:
daba3e871f
Short description of error
Adding a driver from one value of a shader node to another, works great using the new
Copy As New Driver
tool. But saving and loading the file again will invalidate the driver and the input variable'sProp
will be empty.video demo
problem_saving_or_loading_driver_on_shader_node.blend
problem_saving_or_loading_driver_on_shader_node_driven.blend
Exact steps for others to reproduce the error
Copy As New Driver
Added subscriber: @MACHIN3
Added subscribers: @angavrilov, @lichtwerk
I recall other issues with data paths in
Shader Nodetree
.@angavrilov : havent checked code, but this was a bit special, right?
This is probably caused by the node tree being not a real datablock - the reference to the tree in the driver is destroyed on save & load, and you can't even select the correct reference from the dropdown list if you try creating it manually.
This issue was referenced by
8f578150ea
Changed status from 'Open' to: 'Resolved'
This issue was referenced by
e6f3d8b3e1
This issue was referenced by
34ed58dcaf
Changed status from 'Resolved' to: 'Open'
Reopening while we decide on the ideal way to fix this.
Changed status from 'Open' to: 'Resolved'