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Maniphest T75267

Boolean is not working as expected
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Description

System Information
Operating system: Linux-4.15.0-91-generic-x86_64-with-debian-buster-sid 64 Bits
Graphics card: GeForce 940MX/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 435.21

Blender Version
Broken: version: 2.81 (sub 16), branch: master, commit date: 2019-12-04 11:32, hash: rBf1aa4d18d49d
Worked: (optional)

Short description of error
[Please fill out a short description of the error here]
I have array of objects. And i want to give scroll effect. Now when i use cube on it to display only overlapping objects it show only one which come fully under it. Like if i scroll and half box from it go out it will remove whole object. In ideal case it must show half of that object.

Exact steps for others to reproduce the error
[Please describe the exact steps needed to reproduce the issue]
[Based on the default startup or an attached .blend file (as simple as possible)]

  1. Create a cube (representing post on the mobile screen)
  2. resize it
  3. Add array modifer
  4. Create new cube
  5. overLap it on arrays of cube(post)
  6. Select Post array and then add boolean modifer
  7. then intersect ( in boolean modifer )
  8. It only showing post which come fully inside it

Event Timeline

rajan (rajanlagah) created this task.Apr 1 2020, 8:49 AM
rajan (rajanlagah) added a comment.Apr 1 2020, 8:51 AM

It was working. Then i shut down my system and next day it show this error

Ankit Meel (ankitm) changed the task status from Needs Triage to Needs Information from User.Apr 1 2020, 1:43 PM
Ankit Meel (ankitm) added a subscriber: Ankit Meel (ankitm).
  • Please add a simple blend file to help redo the bug.

Also, just for reference: https://docs.blender.org/manual/en/latest/modeling/modifiers/generate/booleans.html

rajan (rajanlagah) added a comment.Apr 1 2020, 7:24 PM

mobileAppAnimation.blend1588 KBDownload

mobileAppAnimation.blend588 KBDownload

Added the files
PLease check

rajan (rajanlagah) added a comment.Apr 2 2020, 4:06 AM

Will this get resolved ?

rajan (rajanlagah) added a comment.Apr 2 2020, 4:43 AM

Ankit Meel (ankitm) changed the task status from Needs Information from User to Needs Triage.Apr 2 2020, 8:48 AM
Ankit Meel (ankitm) added a project: Modifiers.
Rigoletto Eikenberg (rigoletto) added a subscriber: Rigoletto Eikenberg (rigoletto).EditedApr 3 2020, 1:39 PM

The author can get the desired behavior it he put the "Bevel modifier" at bottom after the "Boolean modifier".
Also the "Posts" need apply scale and merge, this will fix the problem too.
I guess it is not a bug.

rajan (rajanlagah) added a comment.Apr 4 2020, 1:59 PM


I just uploaded the list of modifiers. May b this can help

rajan (rajanlagah) added a comment.Apr 4 2020, 6:55 PM

Hey here you see the error much more clearly. I did scale it down also but results were same

Germano Cavalcante (mano-wii) added a subscriber: Germano Cavalcante (mano-wii).EditedApr 6 2020, 4:52 PM

From the attached file, what should I do to reproduce the problem?

Germano Cavalcante (mano-wii) closed this task as Archived.Apr 7 2020, 3:55 PM
Germano Cavalcante (mano-wii) claimed this task.

There are many boolean-related bugs.
Probably the bug here has already been reported in a more specific way.
And from @Rigoletto Eikenberg (rigoletto) comment, the way the modifier is being used is not appropriate.

Thanks for the report. Unfortunately the scenario described is too time consuming for us to track down, we require the bug reporter to narrow down the problem.
A guideline for making a good bug report can be found at https://wiki.blender.org/wiki/Process/Bug_Reports