Archimesh Venetian Blinds object reverts changes to material nodes after altering the object's parameters in the Create panel #98326

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Jonathan Findley · 2022-05-23T03:32:31+02:00

Jonathan Findley commented

2022-05-23 03:32:31 +02:00

2021 HP Omen 17
Operating system: Windows 10 Pro
Graphics card: NVIDIA RTX 2070 Super

Blender 3.0
Broken:
Archimesh add-on bundled with Blender 3.0

After adding a Venetian Blinds object into the viewport via the Shift-A menu, I modified the object color via the Venetian tab in the Create tab of the N-panel. I changed the color, then went into the node editor and made a change in the material nodes (specifically, I put an Add shader between the Diffuse and Mix shaders, then connected a Translucent shader to the bottom input of the Add shader). When I then went back to the Venetian tab and changed the angle that the blinds were open, the material reverted back to its default node setup (though it kept the color I had modified through the Venetian tab). This happened in both Eevee and Cycles, and also happened regardless of whether the option to "Create default Cycles material" was checked or not. Even saving the file immediately after making these modifications and then reopening the project through the "File" menu didn't help.

Attached is a basic Blend file containing a Venetian Blinds object (unmodified except for the color and using the slider to close the blinds), along with a Sun object and a cube that casts a shadow on the blinds (useful for testing node setups that feature translucency or transparency). To reproduce the error, all you have to do is change the material node setup, then try opening or resizing the blinds using the sliders in the Venetian tab. The nodes will immediately revert back to default.Archipack Bug.blend

**2021 HP Omen 17** Operating system: Windows 10 Pro Graphics card: NVIDIA RTX 2070 Super **Blender 3.0** Broken: Archimesh add-on bundled with Blender 3.0 After adding a Venetian Blinds object into the viewport via the Shift-A menu, I modified the object color via the Venetian tab in the Create tab of the N-panel. I changed the color, then went into the node editor and made a change in the material nodes (specifically, I put an Add shader between the Diffuse and Mix shaders, then connected a Translucent shader to the bottom input of the Add shader). When I then went back to the Venetian tab and changed the angle that the blinds were open, the material reverted back to its default node setup (though it kept the color I had modified through the Venetian tab). This happened in both Eevee and Cycles, and also happened regardless of whether the option to "Create default Cycles material" was checked or not. Even saving the file immediately after making these modifications and then reopening the project through the "File" menu didn't help. Attached is a basic Blend file containing a Venetian Blinds object (unmodified except for the color and using the slider to close the blinds), along with a Sun object and a cube that casts a shadow on the blinds (useful for testing node setups that feature translucency or transparency). To reproduce the error, all you have to do is change the material node setup, then try opening or resizing the blinds using the sliders in the Venetian tab. The nodes will immediately revert back to default.[Archipack Bug.blend](https://archive.blender.org/developer/F13098883/Archipack_Bug.blend)

Jonathan Findley commented

2022-05-23 03:32:31 +02:00

Added subscriber: @applepi

Jonathan Findley changed title from ~~Archipack Venetian Blinds object reverts changes to material nodes after altering the object's parameters in the Create panel~~ to Archimesh Venetian Blinds object reverts changes to material nodes after altering the object's parameters in the Create panel

2022-05-23 03:35:46 +02:00

Antonio Vazquez commented

2022-05-23 09:39:22 +02:00

Added subscriber: @antoniov

Antonio Vazquez commented

2022-05-23 09:39:22 +02:00

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

Antonio Vazquez commented

2022-05-23 09:39:22 +02:00

This is a design limitation. Every time you edit the parameter the object is recreated, so what you can do it's create a new material as you want and after changing the parameter, assign again manually your materials instead to try use the "default" material created.

Note: If you want to be sure your new material is never deleted when you save your Blend, set the Fake to ON. It's very easy to delete your new material if you accidentally update the venetian and the default material is assigned and your custom mateial gets users = 0.

This is a design limitation. Every time you edit the parameter the object is recreated, so what you can do it's create a new material as you want and after changing the parameter, assign again manually your materials instead to try use the "default" material created. Note: If you want to be sure your new material is never deleted when you save your Blend, set the `Fake` to ON. It's very easy to delete your new material if you accidentally update the venetian and the default material is assigned and your custom mateial gets `users = 0`.

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Archimesh Venetian Blinds object reverts changes to material nodes after altering the object's parameters in the Create panel #98326