3D viewport lag #84377
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Reference: blender/blender#84377
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System Information
Operating system: Windows 10
Graphics card: Nvidia GTX1060 6Gb mobile
Blender Version
2.91.0
Short description of error
3D viewport lag when using a boolean system.
Exact steps for others to reproduce the error
1- add boolean object on default cube (without applying the boolean).
2- add array + mirror modifiers on the boolean object.
3- when I start moving my default cube, the 3D viewport turns very slow, and a lot of lag.
Added subscriber: @Ltr
Added subscriber: @rjg
Changed status from 'Needs Triage' to: 'Archived'
Thank you for your report. Boolean operations are computationally expensive, especially when using the Exact mode. While we always try to improve performance, this is not considered a bug unless there has been a significant regression from one of the previous versions.
thank you, I didn't mean it's a bug, it's just my first time reporting a problem because I used to work on the boolean system and it wasn't slow like this in version 2.83.
@Ltr Since Blender 2.91 the boolean modifier has an Exact and Fast mode (see Release Notes ). The algorithm from the previous versions is the one behind the*Fast// option. Switching to that mode should give you comparable performance to the 2.83 version.
thank you.