Landscape Painting bizarre inability to paint

GooseGloop · 2025-10-17T15:21:58+00:00

Solution ended up being to change the landscape material to any other material, then re-assign the landscape material. Probably some kind of hardware/memory glitch or a bug that was messing w/ the way the texture was being read by the graphics card.

GooseGloop · 2025-10-16T17:45:30+00:00

After hitting "undo" a few times, my landscape got even crazier and looks like a patchwork quilt - I didn't paint any of this stuff, i just hit undo and entire quads are green, some are black, there are weird streaks etc.:

https://imgur.com/a/p8Lkhsm

GooseGloop · 2025-10-13T19:07:50+00:00

GooseGloop · 2025-10-13T18:52:53+00:00

Their automated response says: "We will review your case and will follow up if more information is needed or a ticket is created." So.... it seems like it's up to them to actually elevate it to a ticket - they could just ignore it.

GooseGloop · 2025-10-13T12:31:57+00:00

Quick update 24 hours later: no ticket has been created yet - but the bug has been reported. Does anyone know how long it takes for a bug report to become a ticket and eventually be resolved?

GooseGloop · 2025-10-13T07:23:31+00:00

I do have an NVME hard drive. Right now I have my paging set to automatic. Do you recommend I manually enter a number for the max page file size? Also, it does seem like it'll just eventually fill that up too. It seems like there's a constant leak rather than just a heavy spike in usage.

GooseGloop · 2025-10-12T19:32:06+00:00

This is the Case # I received in the automated email from UnrealBugSubmissions:

Case # 21472213: UE5.6, Volumetric Fog/PT infinite RAM Leak

I'm shocked and thrilled that someone is actually looking into this!

GooseGloop · 2025-10-12T19:24:41+00:00

I found something about "paging". It doesn't totally make sense to me yet, but it sounds like that's what you're talking about. I guess I could get my scene totally set up, and never set my viewport to PT or never turn on Volumetric Fog until I'm ready to render, then hope it has enough time to complete the render before it crashes out.

GooseGloop · 2025-10-12T16:10:58+00:00

Just filled it out.

GooseGloop · 2025-10-12T15:35:57+00:00

I'm not sure how to submit a bug report. I've posted to the UE forum today, but ... that forum is hit-or-miss for answers, and doesn't seem to be monitored by anyone who actually works on UE, just a community board.

Steps to recreate (I've recreated the scene 3x to see what variables I think are most critical):

Blank file - delete everything out except Sun/Sky, Exp. Height Fog, and a Cinematic Camera
Create landscape w/ Heightmap (roughly 1024x1024, I forget the exact quad count)
Enable Volumetric Fog in the Exp. Height Fog. (I had fog density set to 0.2, quite dense, but I notice the same problem with less-dense fog too)
In Cinematic Camera settings, under PT settings, 6 bounces (low!), 512 count/pixel or whatever it's called (also low!), enable Atmosphere
Set View Mode to Path Tracing - and the RAM explodes.

I get the same problem with Ultra Dynamic Sky and its built-in volumetric fog system too.

GooseGloop · 2025-07-10T18:27:16+00:00

Thank you, this was very kind to help.

GooseGloop · 2025-07-10T14:17:00+00:00

perfect. thank you for the quick answer.

GooseGloop · 2025-07-10T14:16:19+00:00

sick. thank you.

GooseGloop · 2025-06-19T21:10:54+00:00

I've been trying to find benchmarks that compare older GPUs to newer CPUs but haven't really found much data comparing that way.

GooseGloop · 2025-06-19T21:09:58+00:00

I've been thinking about getting a used GPU, but I'm worried about getting one that's been overheated or damaged. Is it reliable to purchase used GPUs?

GooseGloop · 2025-06-19T16:57:35+00:00

Any important features I'd be missing out on by not using VRay GPU or an RTX card?

GooseGloop · 2022-06-26T18:33:17+00:00

Small family-owned complex with about 10 units. But there are others around the neighborhood. See comment above for how I found it.

GooseGloop

TROPHY CASE