Build light crash at 100%

Metathesus · May 12, 2016, 7:43pm

Hello!

I have remove all levels except the one with my Landscape that contain :

A modified material from the AutoLandscape Material from market with “Landscape Grass”
Some painted foliage
A Procedural volume foliage
a small Spline mesh
A BP with a mesh and the new Reflection Plane

Editor crash after build light (I think before generating the lightmaps??)

If you need some logs or something else to track the bug, just ask?

[Crash][1]
[1]:

anonymous_user_b9532c9a · May 13, 2016, 1:39pm

Hi ,

What steps can I take to reproduce this on my end?
Can you post your crash logs here so I can take a look? They can be found at \Unreal Projects\PROJECTNAME\saved\logs.
Have you checked our lighting troubleshooting guide here?
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Can you post your crash callstack here so I can take a look?

Metathesus · May 16, 2016, 5:56pm

Hi !

I don’t know! I can Send you a reduced version of my project which is crashing too! If I can send something with market content…
See attachement!
Yes! Of course!
What’s a crash callstack (I’m french) ? Where can I find it?
Note, It’s a network render with coordinator… haven’t try standalone rendering.

link text

Thanks.

P.S: In the next days I will try Preview 3

anonymous_user_b9532c9a · May 16, 2016, 6:44pm

The callstack is the crash report window that appears after the editor crashes. It should look like this:

The portion that has a green square around it is the information I need.

What are the exact steps you take before the crash occurs? Do you paint additional foliage? Add any actors? Change any materials?

Metathesus · May 17, 2016, 11:52am

There isn’t any Callstack, just the screenshot attached in my first message…

anonymous_user_b9532c9a · May 17, 2016, 2:30pm

Thank you for the additional information. Do you have a sample project this is occurring in you could provide? I’ll be happy to take a look and see what may be occurring.

Metathesus · May 18, 2016, 10:40am

How can I send you the link (googledrive) avoiding to be public because market content?

anonymous_user_b9532c9a · May 18, 2016, 1:55pm

You can send me a private message on the forums. Here is a link to be able to do so:

anonymous_user_b9532c9a · May 18, 2016, 8:27pm

Hi ,

I was able to reproduce this error with your project and have entered a bug report, UE-30975, to be assessed by the development staff.

Metathesus · May 23, 2016, 6:44am

Thank you! Hope it will be resolved for the 4.12 release!

anonymous_user_cf3d4379 · May 24, 2016, 8:48am

Thankyou for the project, we have fixed the crash for the 4.12 release!

I will warn you though, that after the crash was fixed it still hangs for 3 hours (or more if your PC is less powerful than mine) at the end of a lighting build due to having precomputed visibility enabled on such a large level. I would recommend disabling precomputed visibility to avoid this hang, it’s probably not benefiting you in an outdoors environment anyway.

Metathesus · May 24, 2016, 10:58am

Many thanks to you and all the team for the great work!

I will first try to disable precompute visibility to see the impact on the static lights and shadows in interiors…

Placing a smaller precomputed visibility volume only on my buildings can help?
Will It Keeps the exterior foliage shadows intact?

One more question, if I download the 4.12 sources now, is the commit has been applied?