Shrinkwrap modifier before GN-modifier causes mem spike #89163

New Issue

Roger Boe · 2021-06-15T08:36:29+02:00

Roger Boe commented

2021-06-15 08:36:29 +02:00

System Information
24 gb ram ddr3, dual xeon 5670
Operating system:Win 10
Graphics card: gtx780

Blender Version
Broken: 2.93.0 LTS
Worked: 2.92

Short description of error
Rendering enabling the Shrinkwrap modifier before GN-modifier makes the mem usage explode (on my machine it reports around 30 gb) and freezes/probably starts to pagefile.

Exact steps for others to reproduce the error

(Monitor memory usage)
Open attached file
Press F12 to render (note spikes in memory usage that easily reach 11GB)
Disable the "Shrinkwrap" modifier
Press F12 to render (Task manager might be 1-2 gb, and peak ram usage in render window might be like 300mb)
gnbug.blend

**System Information** 24 gb ram ddr3, dual xeon 5670 Operating system:Win 10 Graphics card: gtx780 **Blender Version** Broken: 2.93.0 LTS Worked: 2.92 **Short description of error** Rendering enabling the Shrinkwrap modifier before GN-modifier makes the mem usage explode (on my machine it reports around 30 gb) and freezes/probably starts to pagefile. **Exact steps for others to reproduce the error** - (Monitor memory usage) - Open attached file - Press F12 to render (note spikes in memory usage that easily reach 11GB) - Disable the "Shrinkwrap" modifier - Press F12 to render (Task manager might be 1-2 gb, and peak ram usage in render window might be like 300mb) [gnbug.blend](https://archive.blender.org/developer/F10172417/gnbug.blend)

Roger Boe commented

2021-06-15 08:36:29 +02:00

Added subscriber: @RogerBoe

Pratik Borhade commented

2021-06-15 09:03:13 +02:00

Added subscriber: @PratikPB2123

Pratik Borhade commented

2021-06-15 09:03:13 +02:00

Thanks for the report. Can you attach a simple .blend file?

Roger Boe commented

2021-06-15 09:56:18 +02:00

gnbug.blend

![bug_shrink.jpg](https://archive.blender.org/developer/F10172014/bug_shrink.jpg) [gnbug.blend](https://archive.blender.org/developer/F10172026/gnbug.blend)

Roger B commented

2021-06-15 10:01:17 +02:00

Added subscriber: @rboxman

Roger B commented

2021-06-15 10:01:17 +02:00

Really? A 1 gb file?

Roger Boe commented

2021-06-15 10:48:25 +02:00

jea im normally linking in the vegitation, but to be able to send one file , I had to "make local" the vegitation collection.

Pratik Borhade commented

2021-06-15 10:56:05 +02:00

A 1 gb file?

That's way large. file around 100mb is fine. That's why I always mention to attach a "simple" file.

>A 1 gb file? That's way large. file around 100mb is fine. That's why I always mention to attach a "simple" file.

Roger Boe commented

2021-06-15 11:11:35 +02:00

gnbug.blend

[gnbug.blend](https://archive.blender.org/developer/F10172417/gnbug.blend)

Roger Boe commented

2021-06-17 22:03:29 +02:00

Was the new file size okay?

Germano Cavalcante commented

2021-06-18 19:02:47 +02:00

Added subscriber: @mano-wii

Germano Cavalcante commented

2021-06-18 19:02:47 +02:00

How to reproduce the problem in the attached file. Enabling and disabling the modifier doesn't change memory that much.

Roger Boe commented

2021-06-18 20:18:45 +02:00

Try to render the frame, with and without.

Germano Cavalcante commented

2021-06-21 15:06:17 +02:00

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

Germano Cavalcante commented

2021-06-21 15:06:17 +02:00

I can confirm the memory usage spikes, but I couldn't find the source of the problem (I'm having issues with the latest Visual Studio update).
Maybe it's a limitation, but I'm confirming it as a bug for now.

I can confirm the memory usage spikes, but I couldn't find the source of the problem (I'm having issues with the latest Visual Studio update). Maybe it's a limitation, but I'm confirming it as a bug for now.

Roger Boe commented

2021-06-24 10:54:27 +02:00

Any progress? Not that it probably matters but the problem persists in latest 2.93.1 release also.