Regression: Blender crashes in Sculpt Mode when subdividing with the Multiresmodifier to level 7 #102209

New Issue

Oliver Tillmann · 2022-11-01T15:12:28+01:00

Oliver Tillmann commented

2022-11-01 15:12:28 +01:00

System Information
Operating system: Windows-10-10.0.22000-SP0 64 Bits
Graphics card: NVIDIA GeForce RTX 2070 SUPER/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 522.25

Blender Version
Broken: version: 3.4.0 Alpha, branch: master, commit date: 2022-11-01 10:28, hash: d2406ad17d
Worked: Blender version 3.3.1
Caused by 010c10febe

Exact steps for others to reproduce the error

Open Blender
Select Default Cube
Go to Sculpt-Mode
Add Multiresolution Modifier
Subdivde 7x
Blender crashes

**System Information** Operating system: Windows-10-10.0.22000-SP0 64 Bits Graphics card: NVIDIA GeForce RTX 2070 SUPER/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 522.25 **Blender Version** Broken: version: 3.4.0 Alpha, branch: master, commit date: 2022-11-01 10:28, hash: `d2406ad17d` Worked: Blender version 3.3.1 Caused by 010c10febe **Exact steps for others to reproduce the error** 1. Open Blender 2. Select Default Cube 3. Go to Sculpt-Mode 4. Add Multiresolution Modifier 5. Subdivde 7x Blender crashes

Oliver Tillmann commented

2022-11-01 15:12:28 +01:00

Added subscriber: @Otilla

TheRedWaxPolice commented

2022-11-01 16:34:19 +01:00

Added subscriber: @TheRedWaxPolice

TheRedWaxPolice commented

2022-11-01 16:41:37 +01:00

Yep, crashing here too...

Jesse Yurkovich commented

2022-11-01 21:24:51 +01:00

Added subscribers: @JosephEagar, @deadpin

Jesse Yurkovich commented

2022-11-01 21:24:51 +01:00

Changed status from 'Needs Triage' to: 'Confirmed'

Jesse Yurkovich commented

2022-11-01 21:24:51 +01:00

Confirmed and a git bisect seems to blame: {010c10febe46c1c24ca3e32ee8b03e2da2eea4fe}

The stack, at least when using a debug build, is extremely deep so it's possible that limited stack space is at play here too. It's 4400+ frames deep mostly filled with recursive calls to build_sub (that's either part of the issue or just a symptom of the real problem)

blender.exe!min_ff(float a, float b) Line 483	C
blender.exe!BB_expand_with_bb(BB * bb, BB * bb2) Line 82	C
blender.exe!update_vb(PBVH * pbvh, PBVHNode * node, BBC * prim_bbc, int offset, int count) Line 334	C
blender.exe!build_sub(PBVH * pbvh, int node_index, BB * cb, BBC * prim_bbc, int offset, int count) Line 509	C
blender.exe!build_sub(PBVH * pbvh, int node_index, BB * cb, BBC * prim_bbc, int offset, int count) Line 542	C
blender.exe!build_sub(PBVH * pbvh, int node_index, BB * cb, BBC * prim_bbc, int offset, int count) Line 542	C
blender.exe!build_sub(PBVH * pbvh, int node_index, BB * cb, BBC * prim_bbc, int offset, int count) Line 542	C
...
< snipped -- a lot of build_sub calls below this... >

CC @JosephEagar

Confirmed and a git bisect seems to blame: {010c10febe46c1c24ca3e32ee8b03e2da2eea4fe} The stack, at least when using a debug build, is extremely deep so it's possible that limited stack space is at play here too. It's 4400+ frames deep mostly filled with recursive calls to `build_sub` (that's either part of the issue or just a symptom of the real problem) ``` blender.exe!min_ff(float a, float b) Line 483 C blender.exe!BB_expand_with_bb(BB * bb, BB * bb2) Line 82 C blender.exe!update_vb(PBVH * pbvh, PBVHNode * node, BBC * prim_bbc, int offset, int count) Line 334 C blender.exe!build_sub(PBVH * pbvh, int node_index, BB * cb, BBC * prim_bbc, int offset, int count) Line 509 C blender.exe!build_sub(PBVH * pbvh, int node_index, BB * cb, BBC * prim_bbc, int offset, int count) Line 542 C blender.exe!build_sub(PBVH * pbvh, int node_index, BB * cb, BBC * prim_bbc, int offset, int count) Line 542 C blender.exe!build_sub(PBVH * pbvh, int node_index, BB * cb, BBC * prim_bbc, int offset, int count) Line 542 C ... < snipped -- a lot of build_sub calls below this... > ``` CC @JosephEagar

Pratik Borhade changed title from ~~Blender crashes in Sculpt Mode when subdividing with the Multiresmodifier to level 7~~ to Regression: Blender crashes in Sculpt Mode when subdividing with the Multiresmodifier to level 7

2022-11-02 00:38:54 +01:00

Pratik Borhade commented

2022-11-02 00:38:59 +01:00

Added subscriber: @PratikPB2123

blender-admin commented

2022-11-10 20:30:04 +01:00

This issue was referenced by 3c089c0a88

This issue was referenced by 3c089c0a88983b6fcd5ebed7480625fc4c1bf8a8

Joseph Eagar commented

2022-11-10 20:32:53 +01:00

Changed status from 'Confirmed' to: 'Resolved'

Joseph Eagar closed this issue

2022-11-10 20:32:53 +01:00

Joseph Eagar self-assigned this 2022-11-10 20:32:53 +01:00

blender-admin commented

2022-11-10 20:49:39 +01:00

This issue was referenced by b2000412f2

This issue was referenced by b2000412f21dfa5da6a02c7b0922280f5049cc2a

Sign in to join this conversation.

No Label

Download

What's New

Blender Studio

Manual

Developers Blog

Documentation

Benchmark

Blender Conference

Development Fund

One-time Donations

Regression: Blender crashes in Sculpt Mode when subdividing with the Multiresmodifier to level 7 #102209