Crash on using Snap Base on verticies #120005

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opened 2024-03-28 09:25:10 +01:00 by mkubiak · 6 comments

mkubiak commented

2024-03-28 09:25:10 +01:00

Information
Operating system: Linux-6.8.2-arch1-1-x86_64-with-glibc2.39 64 Bits, WAYLAND UI
Graphics card: NVIDIA GeForce RTX 4090/PCIe/SSE2 NVIDIA Corporation 4.6.0 NVIDIA 550.67

Blender Version
Broken: version: 4.1.0, branch: makepkg (modified), commit date: 2024-03-25 20:42, hash: 40a5e739e270

Short description of error
Using the Snap Base feature crashes Blender.

Exact steps for others to reproduce the error
Hello, when I'm trying to snap the Window Frame to the Wall Plaster in Object Mode using the new Snap Base Feature (G + B), Blender instantly crashes. It crashed on 4.0 too. I shared a screenshot for the snapping I'm trying to achieve

Error log from the terminal:
/usr/include/c++/13.2.1/optional:477: constexpr _Tp& std::_Optional_base_impl<_Tp, _Dp>::_M_get() [with _Tp = blender::Bounds<blender::VecBase<float, 3> >; _Dp = std::_Optional_base<blender::Bounds<blender::VecBase<float, 3> >, true, true>]: Assertion 'this->_M_is_engaged()' failed. zsh: IOT instruction (core dumped) blender

Attached the .blend file for demonstration.
Thanks for your time!

**Information** Operating system: Linux-6.8.2-arch1-1-x86_64-with-glibc2.39 64 Bits, WAYLAND UI Graphics card: NVIDIA GeForce RTX 4090/PCIe/SSE2 NVIDIA Corporation 4.6.0 NVIDIA 550.67 **Blender Version** Broken: version: 4.1.0, branch: makepkg (modified), commit date: 2024-03-25 20:42, hash: `40a5e739e270` **Short description of error** Using the Snap Base feature crashes Blender. **Exact steps for others to reproduce the error** Hello, when I'm trying to snap the Window Frame to the Wall Plaster in Object Mode using the new Snap Base Feature (G + B), Blender instantly crashes. It crashed on 4.0 too. I shared a screenshot for the snapping I'm trying to achieve Error log from the terminal: `/usr/include/c++/13.2.1/optional:477: constexpr _Tp& std::_Optional_base_impl<_Tp, _Dp>::_M_get() [with _Tp = blender::Bounds<blender::VecBase<float, 3> >; _Dp = std::_Optional_base<blender::Bounds<blender::VecBase<float, 3> >, true, true>]: Assertion 'this->_M_is_engaged()' failed. zsh: IOT instruction (core dumped) blender ` Attached the .blend file for demonstration. Thanks for your time!

fachwerkhaus.blend

5.8 MiB

Screenshot_20240328_091955.png

69 KiB

mkubiak added the

labels 2024-03-28 09:25:11 +01:00

Iliya Katushenock added the

label 2024-03-28 12:35:18 +01:00

Germano Cavalcante commented

2024-03-28 14:54:36 +01:00

Member

I can't replicate the crash. But the error message reminds me of a fix I made in 4.2
fcfce8f69f

@HooglyBoogly, do you think this code could lead to a crash?

const Bounds<float3> bounds = *mesh_eval->bounds_min_max();

Is it worth backporting the commit to 4.1.1?

I can't replicate the crash. But the error message reminds me of a fix I made in 4.2 fcfce8f69f @HooglyBoogly, do you think this code could lead to a crash? ```cpp const Bounds<float3> bounds = *mesh_eval->bounds_min_max(); ``` Is it worth backporting the commit to 4.1.1?

Germano Cavalcante added

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labels 2024-03-28 14:54:52 +01:00

mkubiak commented

2024-03-28 15:01:27 +01:00

Author

I played with it a little longer, seems it happens often with Collection Instances I'm trying to snap.

I played with it a little longer, seems it happens often with Collection Instances I'm trying to snap.

Hans Goudey commented

2024-03-28 15:02:20 +01:00

Member

I wouldn't imagine that causing a crash, but maybe. That commit should be in 4.1, for sure.

I wouldn't imagine that causing a crash, but maybe. That commit should be in 4.1, for sure.

Germano Cavalcante commented

2024-03-28 23:33:04 +01:00

Member

@mkubiak, could you try the latest daily build?
This way we can confirm if that change is really related to the issue.

@mkubiak, could you try the [latest daily build](https://builder.blender.org/download/)? This way we can confirm if that change is really related to the issue.

Germano Cavalcante added

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labels 2024-03-28 23:33:16 +01:00

mkubiak commented

2024-03-28 23:45:02 +01:00

Author

@mano-wii
The latest build works without any issues! I double checked with the old one, in which the bug occurs every time.
Thanks for your fast work!

@mano-wii The latest build works without any issues! I double checked with the old one, in which the bug occurs every time. Thanks for your fast work!

~~Germano Cavalcante referenced this issue 2024-03-29 14:50:48 +01:00~~

4.1: Candidates for corrective releases #119631

Germano Cavalcante commented

2024-03-29 14:57:33 +01:00

Member

Thank you for confirming!
I have added the mentioned commit to the list 4.1: Candidates for corrective releases #119631.
So it will certainly be fixed in 4.1.1

Thank you for confirming! I have added the mentioned commit to the list [4.1: Candidates for corrective releases #119631](https://projects.blender.org/blender/blender/issues/119631). So it will certainly be fixed in 4.1.1

Germano Cavalcante closed this issue

2024-03-29 14:57:37 +01:00

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labels 2024-03-29 14:58:50 +01:00

Hans Goudey added

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labels 2024-03-29 15:06:17 +01:00

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