No image.previews for some D.images #94418

New Issue

Andrea · 2021-12-27T16:40:11+01:00

Andrea commented

2021-12-27 16:40:11 +01:00

System Information
Operating system: Windows-10-10.0.19043-SP0 64 Bits
Graphics card: GeForce GTX 1080 Ti/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 461.40

Blender Version
Broken: version: 3.0.0, branch: master, commit date: 2021-12-02 18:35, hash: f1cca30557
Worked: (newest version of Blender that worked as expected)

Short description of error
Open the Blend file and Run the script

Exact steps for others to reproduce the error
Running the for loop inside the script to check, some image.preview is None
Bug.blend
This only happens on Blender 3.0, in Blender 2.93 the images always had the preview.

**System Information** Operating system: Windows-10-10.0.19043-SP0 64 Bits Graphics card: GeForce GTX 1080 Ti/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 461.40 **Blender Version** Broken: version: 3.0.0, branch: master, commit date: 2021-12-02 18:35, hash: `f1cca30557` Worked: (newest version of Blender that worked as expected) **Short description of error** Open the Blend file and Run the script **Exact steps for others to reproduce the error** Running the for loop inside the script to check, some image.preview is None [Bug.blend](https://archive.blender.org/developer/F12778026/Bug.blend) This only happens on Blender 3.0, in Blender 2.93 the images always had the preview.

Andrea commented

2021-12-27 16:40:11 +01:00

Added subscriber: @Andrew_D-1

Pratik Borhade commented

2021-12-30 11:13:21 +01:00

Added subscriber: @PratikPB2123

Pratik Borhade commented

2021-12-30 11:35:34 +01:00

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

Pratik Borhade commented

2021-12-30 11:35:34 +01:00

Thanks for the report. Can confirm.

Broken between 9dabb342ba - a1556fa05c

I will check

Thanks for the report. Can confirm. Broken between 9dabb342ba - a1556fa05c I will check

Philipp Oeser commented

2022-01-03 14:27:51 +01:00

Added subscribers: @mont29, @lichtwerk

Philipp Oeser commented

2022-01-03 14:27:51 +01:00

Changed status from 'Confirmed' to: 'Archived'

Philipp Oeser closed this issue

2022-01-03 14:27:51 +01:00

Philipp Oeser commented

2022-01-03 14:27:51 +01:00

This changed in e3faef686d.

However, I assume this is not really a bug.
If the previews have not been generated, you (now) have to ensure this by hand like so:

import bpy

D = bpy.data

for i in D.images:
    i.id_data.preview_ensure()
    print(i.name, i.preview)

Bug_corrected.blend

Assume this will not be considered a bug (@mont29: correct me if I am wrong), so thx reporting, but afraid we'll have to close.
@Andrew_D-1 : feel free to comment again if the above does not work for you

This changed in e3faef686d. However, I assume this is not really a bug. If the previews have not been generated, you (now) have to ensure this by hand like so: ``` import bpy D = bpy.data for i in D.images: i.id_data.preview_ensure() print(i.name, i.preview) ``` [Bug_corrected.blend](https://archive.blender.org/developer/F12786730/Bug_corrected.blend) Assume this will not be considered a bug (@mont29: correct me if I am wrong), so thx reporting, but afraid we'll have to close. @Andrew_D-1 : feel free to comment again if the above does not work for you

Andrea commented

2022-01-03 14:48:13 +01:00

Uh, ok I didn't know this API to generate the preview. I think it might be a good way to be sure to generate it manually.

Although I find that in version 2.93 the fact that they were always generated could be good.

In any case, the important thing is to know.
Thank you for the clarification.

Uh, ok I didn't know this API to generate the preview. I think it might be a good way to be sure to generate it manually. Although I find that in version 2.93 the fact that they were always generated could be good. In any case, the important thing is to know. Thank you for the clarification.

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No image.previews for some D.images #94418