Leandro Heck

But other one said that: > The mirroring has no impact on the light source. The light source is part of the viewer logic and objects of a document don't...

It seems that enabling the backlight in the settings can "improve" the visual quality of the resulting object. However, I am not sure this is the right fix.

This approach works on 0.21.3, but in 1.1 the back light is already enabled.

> No, the right fix is to avoid scaling using negative numbers. Do you have an idea to help me fixing this?

@MiqCG there are some assymetric objects reported on the following link. They mirror as expected except by the color. https://github.com/Zolko-123/FreeCAD_Assembly4/issues/552 If you follow the link above you can see that...

See this example here: [mirror_issue.FCStd.zip](https://github.com/user-attachments/files/19720742/mirror_issue.FCStd.zip) Here, I have mirrored the object 2 times. 

@MiqCG do you need an appimage? I have these saved: ``` FreeCAD_weekly-builds-41213-conda-Linux-x86_64-py311.AppImage FreeCAD_weekly-builds-41138-conda-Linux-x86_64-py311.AppImage FreeCAD_weekly-builds-41127-conda-Linux-x86_64-py311.AppImage FreeCAD_weekly-builds-40971-conda-Linux-x86_64-py311.AppImage FreeCAD_weekly-builds-40655-conda-Linux-x86_64-py311.AppImage FreeCAD_weekly-builds-40444-conda-Linux-x86_64-py311.AppImage FreeCAD_weekly-builds-40408-conda-Linux-x86_64-py311.AppImage FreeCAD_weekly-builds-38553-conda-Linux-x86_64-py311.AppImage FreeCAD_weekly-builds-36438-2024-03-15-conda-Linux-x86_64-py310.AppImage ```

@MiqCG Asm4 does this (I removed some irrelevant parts) ```python class makeMirrorArray(makeExpressionArray): def _setupProperties(self, obj): obj.Count = 2 obj.setExpression('Scaler', '1 - 2 * (Index % 2)') obj.setExpression('.Placer.Base', '.Placer.Rotation * minvert(.AxisPlacement)...

But I confirm that your example @MiqCG reproduces the issue. Check here: https://github.com/user-attachments/assets/507ab1f3-2d43-4855-a8b1-c8d38a0cd072

@MiqCG, I think it is the same problem. I am putting my AppImages here. https://www.dropbox.com/scl/fo/kk8ffuxc15ioj5l2b9r32/ABUUCxxigx1nlgVQMaPhdG8?rlkey=60qkhu7fwaxlh0m5p6jeaeonx&dl=0 It will take some time to upload them, but these are all the files you...