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Hard Crash while baking Line Art Modifier for Geometry Nodes object #126692

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opened 2024-08-23 15:35:59 +02:00 by Df · 5 comments
Df commented 2024-08-23 15:35:59 +02:00
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System Information
Operating system: Windows-10-10.0.19045-SP0 64 Bits
Graphics card: NVIDIA TITAN X (Pascal)/PCIe/SSE2 NVIDIA Corporation 4.6.0 NVIDIA 555.85

Blender Version
Broken: version: 4.2.1 LTS, branch: blender-v4.2-release, commit date: 2024-08-19 11:21, hash: 396f546c9d82
Broken: 4.1.1
Worked: 4.0.2

Short description of error
When I hit the Bake Line Art button on the Grease Pencil Line Art Modifier on the object named LineArt Blender Crashes.

Exact steps for others to reproduce the error

  1. Load attached blend file
  2. Select the object named LineArt
  3. Go to the Modifiers tab of the Properties panel
  4. Click Bake Line Art
  5. Crash! Crashes every time on my machine, log attached

The source object is quirky in a few ways, not sure if they're related to anything

  • it has geometry nodes modifier
  • it has shape keys
  • it has completely overlapping edges in places

One more note - no idea if this is relevant but this file was created on 4.2.0, then I upgraded to 4.2.1 LTS - I'd been having some problems with the grease pencil not showing up in the render without first baking, thought updating might fix it - then stumbled on this issue.

Thanks!

d

**System Information** Operating system: Windows-10-10.0.19045-SP0 64 Bits Graphics card: NVIDIA TITAN X (Pascal)/PCIe/SSE2 NVIDIA Corporation 4.6.0 NVIDIA 555.85 **Blender Version** Broken: version: 4.2.1 LTS, branch: blender-v4.2-release, commit date: 2024-08-19 11:21, hash: `396f546c9d82` Broken: 4.1.1 Worked: 4.0.2 **Short description of error** When I hit the Bake Line Art button on the Grease Pencil Line Art Modifier on the object named LineArt Blender Crashes. **Exact steps for others to reproduce the error** 1. Load attached blend file 2. Select the object named LineArt 3. Go to the Modifiers tab of the Properties panel 4. Click Bake Line Art 5. Crash! Crashes every time on my machine, log attached The source object is quirky in a few ways, not sure if they're related to anything - it has geometry nodes modifier - it has shape keys - it has completely overlapping edges in places One more note - no idea if this is relevant but this file was created on 4.2.0, then I upgraded to 4.2.1 LTS - I'd been having some problems with the grease pencil not showing up in the render without first baking, thought updating might fix it - then stumbled on this issue. Thanks! d
crashReport_002.crash.txt
48 KiB
crashReport_002.blend
1.2 MiB
Df added the
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 labels 2024-08-23 15:36:00 +02:00
Philipp Oeser commented 2024-08-23 16:53:13 +02:00
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Can confirm.

Can confirm.
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 labels 2024-08-23 16:54:11 +02:00
Philipp Oeser commented 2024-08-23 16:59:12 +02:00
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Looks like this broke between 3df7939eec & 82811cf489.

f2d08d2cbe possibly @ChengduLittleA ?

Looks like this broke between 3df7939eec96 & 82811cf489f4. f2d08d2cbea6477cdd489b75491e4620f66a7de8 possibly @ChengduLittleA ?
Philipp Oeser added
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 labels 2024-08-23 16:59:23 +02:00
Iliya Katushenock added the
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 labels 2024-08-23 18:33:25 +02:00
Iliya Katushenock added this to the 4.2 LTS milestone 2024-08-23 18:33:46 +02:00
YimingWu commented 2024-08-26 06:28:12 +02:00
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Yepp... Will take a look and see what exact setup caused this to happen.

Yepp... Will take a look and see what exact setup caused this to happen.
YimingWu self-assigned this 2024-08-26 06:28:21 +02:00
YimingWu commented 2024-08-26 08:44:31 +02:00
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Looks like it's crashing in DRW_draw_render_loop_2d_ex > deg_iterator_objects_step where check_datablock_expanded has a null id_cow. Not exactly sure if it's triggered by that change, seems to be that the interface is refreshing (in a input locked state).

the crashing ID seems to be a a node tree named "Reduce With Limit" where the id_node->id_cow is NULL.

Looks like it's crashing in `DRW_draw_render_loop_2d_ex` > `deg_iterator_objects_step` where `check_datablock_expanded` has a null `id_cow`. Not exactly sure if it's triggered by that change, seems to be that the interface is refreshing (in a input locked state). the crashing ID seems to be a a node tree named `"Reduce With Limit"` where the `id_node->id_cow` is NULL.
YimingWu commented 2024-08-26 08:54:20 +02:00
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Hummm I'm not able to reliably reproduce this, what I found is that if I:

  • Open File
  • Goto Modelling workspace and open a geometry nodes editor
  • Switch to the plane object
  • Switch to line art and bake
    • It won't crash no matter how many times I try.
    • However if you go back to the script workspace and bake again, it will crash.
  • Removing that Reduce With Limit node group seems to allow line art to not crash as well.

Not sure what to make of this. I need some depsgraph magicians here :(

Hummm I'm not able to reliably reproduce this, what I found is that if I: - Open File - Goto Modelling workspace and open a geometry nodes editor - Switch to the plane object - Switch to line art and bake - It won't crash no matter how many times I try. - However if you go back to the script workspace and bake again, it will crash. - Removing that `Reduce With Limit` node group seems to allow line art to not crash as well. Not sure what to make of this. I need some depsgraph magicians here :(
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