Rendering a sequence with two PCGVolume objects (Wind_Example_PCG) crashes the rendering and then the engine (GPU)

Development Cinematics & Media Virtual Production
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GPU crashes on the dynamicwind update call

Test58.log(603 KB)

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Steps to Reproduce
A great example of this behavior is in the level (just try to render a random sequence in the level)

/ProceduralVegetationEditor/SampleAssets/Maps/Asset_Zoo.Asset_Zoo
  1. Render a level sequence in a level with two objects of type PCGVolume present
    1. Add multiple different types of foliage to the parameter overrides
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Hey Petr,

I just tried the sample asset with some PCG parameter overrides here locally, and it rendered without crashing. Could you share a repro project?

Your log shows a TDR timeout at 120 seconds. A guess would be the setting of PCG quality to 4 via the cinematic scalability and the wind evaluation is overwhelming things. Can you try disabling the wind and/or setting the PCG quality lower at render time to see if things will render? Also can you try and set any TDR delays in your registry?

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Odd. Can you send me specific instructions on what you’re doing here like which assets and which overrides? "Two objects of type PCGVolume present, Add multiple different types of foliage to the parameter overrides"

That’s the only thing I can think of that I might be doing differently from you. Other than that I am in vanilla 5.8 with the Asset_Zoo.

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Sorry for the confusion. The crash happens in the AssetZoo level every time.

If you want to recreate it beside AssetZoo, all you have to do is to place in two types of PCG foliage with wind effects, make the areas large and then render the sequence. I am rendering it with the default render graph with no edits, and the render crashes even on just a few frames (or even two frames).

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Ahh I see. Yeah, I just tried again. Opened AssetZoo and just hit render. It was fine. Your previous log talks about a GPU timeout. Have you tried it on a different machine and/or with different drivers?

Any project/editor settings I should be aware of? Maybe you can try and send me any configs you change and I can try and use those?

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Ok I found a machine that will crash on. Sit tight for a beat while we triage. Thank you!

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Hello Shaun,

I tried this on a clean installation of UE 5.8 and the render still failed. It does not even come through the warm up frame. Disabling the wind through the `BP_GlobalFoliageActor_UE5` did not solve this issue. The level is in the engine content, so i guess it’s pointless to post a repro of a fresh project..

This is the error that pops out in the ui dialog window:

GPU Crashed or D3D Device Removed.

Check log for GPU state information.

A GPU mini dump has been written to “…”.

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Hello Shaun,

I tried installing the newest production ready NVIDIA Game ready drivers for both RTX 4090 and RTX 5090 and it still does not pass through the render. Everything was done and tested on absolutely clean, fresh installs of UE5.8 on the Epic Store.

I tried with Nanite foliage support turned both off and on and it still crashes the same way as before. There are no specific editor settings as of the fresh installs. The renders are done with the default movie render graph.

Thank you for your insight,

Petr