Disappearing geometry using the boolean modifier #51389

New Issue

Vlad · 2017-05-02T10:19:50+02:00

Vlad commented

2017-05-02 10:19:50 +02:00

System Information
AMD FX9590, GTX 1070 and 780, 32 GB ram

Blender Version
In all version the Blender where is a carve boolean mode

Short description of error
The geometry is disappearing when I use the boolean modifier with method carve. I often face this problem.

Exact steps for others to reproduce the error
Change value of "Thickness" in Solidify modifier in the my scene.
Scene - https://drive.google.com/file/d/0B44RnfYzKt3cOHQ2WFpsa20tYTQ/view?usp=drivesdk
Gif example - http://i.imgur.com/j4bOTbI.gifv

**System Information** AMD FX9590, GTX 1070 and 780, 32 GB ram **Blender Version** In all version the Blender where is a carve boolean mode **Short description of error** The geometry is disappearing when I use the boolean modifier with method carve. I often face this problem. **Exact steps for others to reproduce the error** Change value of "Thickness" in Solidify modifier in the my scene. Scene - https://drive.google.com/file/d/0B44RnfYzKt3cOHQ2WFpsa20tYTQ/view?usp=drivesdk Gif example - http://i.imgur.com/j4bOTbI.gifv

Vlad commented

2017-05-02 10:19:50 +02:00

Changed status to: 'Open'

Vlad commented

2017-05-02 10:19:50 +02:00

Added subscriber: @Darcvizer

Joel Godin commented

2017-05-03 15:05:00 +02:00

Added subscriber: @FloridaJo

Joel Godin commented

2017-05-03 15:05:00 +02:00

I see that here as well.
If the Cube 2 is moved off of one shared plane (increase 'y' location) works fine.
Seems to be a clash of when face of object 1 is on the same plane as a face of object 2.

I see that here as well. If the Cube 2 is moved off of one shared plane (increase 'y' location) works fine. Seems to be a clash of when face of object 1 is on the same plane as a face of object 2.

Vlad commented

2017-05-03 16:52:36 +02:00

Seems to be a clash of when face of object 1 is on the same plane as a face of object 2.

All right. I'm on this and reported a bug

> Seems to be a clash of when face of object 1 is on the same plane as a face of object 2. All right. I'm on this and reported a bug

Joel Godin commented

2017-05-06 02:06:57 +02:00

I'm thinking it is something similar to Z-Fighting but in this case it's the math determining which face is going to play the inside and which one the outside.
Since computer's memory is finite and has a finite number of states, I'm thinking this is the inherent results of 3D space and a computer's limits of math.
I'll let a developer make the call, but I don't think it's a bug.

I'm thinking it is something similar to Z-Fighting but in this case it's the math determining which face is going to play the inside and which one the outside. Since computer's memory is finite and has a finite number of states, I'm thinking this is the inherent results of 3D space and a computer's limits of math. I'll let a developer make the call, but I don't think it's a bug.

Sergey Sharybin commented

2017-05-09 12:58:06 +02:00

Added subscriber: @Sergey

Sergey Sharybin commented

2017-05-09 12:58:06 +02:00

Changed status from 'Open' to: 'Archived'

Sergey Sharybin closed this issue

2017-05-09 12:58:06 +02:00

Sergey Sharybin self-assigned this 2017-05-09 12:58:06 +02:00

Sergey Sharybin commented

2017-05-09 12:58:06 +02:00

The edges of two operands are matching exactly. This is tricky situation to resolve in general and not really considered a bug. Especially since it's happening with library we don't maintain.

Just offset the operand to help math.

The edges of two operands are matching exactly. This is tricky situation to resolve in general and not really considered a bug. Especially since it's happening with library we don't maintain. Just offset the operand to help math.

Vlad commented

2017-05-09 15:00:20 +02:00

That's exactly what I did. But it's jumping with a tambourine
http://pasteall.org/390855/python

That's exactly what I did. But it's jumping with a tambourine http://pasteall.org/390855/python

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Disappearing geometry using the boolean modifier #51389