Adding assets (modifiers, such as Smooth by Angle) not working in background Python script because Asset list might not be fully loaded yet #117399

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Matthias_Schaefer · 2024-01-22T10:58:18+01:00

Matthias_Schaefer commented

2024-01-22 10:58:18 +01:00

System Information
Operating system: Windows-10-10.0.19045-SP0 64 Bits
Graphics card: Quadro RTX 3000/PCIe/SSE2 NVIDIA Corporation 4.6.0 NVIDIA 528.02

Blender Version
Broken: version: 4.1.0 Alpha, branch: main, commit date: 2024-01-17 00:18, hash: 35028d9480b0
Worked: None as it is a new feature

Short description of error
I try to apply the new "Smooth by Angle" operator from a Python script that runs in a Blender background process. But while it works from inside of Blender it fails when running from the command line as background with the message:

Warning: Asset loading is unfinished

Exact steps for others to reproduce the error

Created a copy of the default .blend file and saved it as test_simple.blend
Create a small Python file test_simple.py with this content:

import bpy
this_object = bpy.data.objects["Cube"]
modifier_status = bpy.ops.object.modifier_add_node_group(asset_library_type="ESSENTIALS", asset_library_identifier="", relative_asset_identifier="geometry_nodes\\smooth_by_angle.blend\\NodeTree\\Smooth by Angle")

Call Blender from the command line (in the directory with the blend and py files) with blender test_simple.blend --background -P test_simple.py

As result I get Warning: Asset loading is unfinished. If the modified blend file is saved to the disk and opened in blender one can see that a GeoemetryNodes group was created for the cube but that it is empty.

Running exactly the same script from inside Blender while the test_simple.blend is opened works fine and produces the expected modifier.

**System Information** Operating system: Windows-10-10.0.19045-SP0 64 Bits Graphics card: Quadro RTX 3000/PCIe/SSE2 NVIDIA Corporation 4.6.0 NVIDIA 528.02 **Blender Version** Broken: version: 4.1.0 Alpha, branch: main, commit date: 2024-01-17 00:18, hash: `35028d9480b0` Worked: None as it is a new feature **Short description of error** I try to apply the new "Smooth by Angle" operator from a Python script that runs in a Blender background process. But while it works from inside of Blender it fails when running from the command line as background with the message: `Warning: Asset loading is unfinished` **Exact steps for others to reproduce the error** 1. Created a copy of the default .blend file and saved it as `test_simple.blend` 2. Create a small Python file `test_simple.py` with this content: ```Py import bpy this_object = bpy.data.objects["Cube"] modifier_status = bpy.ops.object.modifier_add_node_group(asset_library_type="ESSENTIALS", asset_library_identifier="", relative_asset_identifier="geometry_nodes\\smooth_by_angle.blend\\NodeTree\\Smooth by Angle") ``` 3. Call Blender from the command line (in the directory with the blend and py files) with `blender test_simple.blend --background -P test_simple.py` As result I get `Warning: Asset loading is unfinished`. If the modified blend file is saved to the disk and opened in blender one can see that a GeoemetryNodes group was created for the cube but that it is empty. Running exactly the same script from inside Blender while the `test_simple.blend` is opened works fine and produces the expected modifier.

test_simple.py

314 B

test_simple.blend

895 KiB

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Matthias_Schaefer added the