3DS Max 2020 mat editor crash

[Myirdin]

Hi,

when i set Lux to renderer and open max 2020 material editor, max crashes.

Is this a known issue?

Maybe i forgot doing something during installation?

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[OmidGhotbi]

Did you use the last version v0.8.2705 or later?

[Myirdin]

Did you use the last version v0.8.2705 or later?

Hi, i use v0.8.2.7

[OmidGhotbi]

Please check the 3dsmax installation folder and inside "Maps" you should see "LuxMap" just rename it to "LuxMaps" and I think this will solve your problem. In New build, I fixed it and it will be available in 2 days. If it was the issue please confirm it here.

[Myirdin]

Please check the 3dsmax installation folder and inside "Maps" you should see "LuxMap" just rename it to "LuxMaps" and I think this will solve your problem. In New build, I fixed it and it will be avilable in 2 days.

I'll do it.

Thanks for quick reply!!

[Myirdin]

Please check the 3dsmax installation folder and inside "Maps" you should see "LuxMap" just rename it to "LuxMaps" and I think this will solve your problem. In New build, I fixed it and it will be available in 2 days. If it was the issue please confirm it here.

I'm afraid the folder is already named "LuxMaps"

But i can wait a couple of days for the new build. However, thanks again for the quick reply

[OmidGhotbi]

If there is any special error message please upload it here or report in LuxCoreRender Forums. ScreenShot Before 3dsmax Crash can help a lot because it will show the material causing the crash.

[Myirdin]

It happens each time material viewport updates reaches rendering " (Standard)"

See attached capture

[OmidGhotbi]

So it is okay for other materials before standard and when it reaches the standard material crash

[Myirdin]

Yes, but only when i set luxcore as renderer. when another renderer is active, no problem

[Myirdin]

I may add that this occurs even with an empty scene, and the exact same problem appears in 3DS Max 2019.

[patro1]

Just a hint. Open the mat editor only in "slate" mode, and as fast as you can go to option-> set it to "manual update toggle", then go to utilities and reset the material editor. maybe this will help you to work with maxtolux in the next days till new release willl be avialble. Of course if this hint might be a workaround for you report back.

[OmidGhotbi]

it is not possible for me to replicate the issue, i hate when that happened because there is no way to know what is the issue came from. perhaps conflict with another renderer. I fixed many issues in the new build and it will be ready on Friday or Saturday. If this one not fixing your problem i will investigate the issue directly with you, perhaps giving you and debug version so i have at least an error number.

[OmidGhotbi]

Look at this, I just try to install a fresh one and no problem at all. I really appreciate you helping us investigate the problem.

https://user-images.githubusercontent.com/164653/114587425-f3374080-9c85-11eb-9521-22e717f5c0b8.mp4

[Myirdin]

I've tried making a fresh install, but it didn't solve the problem. i'll try the workaround with the "manual update" and come back to you.

[Myirdin]

New Problem. I've disabled update renderings on the editor then opened one Lux Material. I tried to manually update this material preview and it crashed again. See attached.

[Myirdin]

If you need additionnal information (graphic card, other renderers installed), let me know.

[OmidGhotbi]

Are you able to render anything? did you remove the old plugin from add remove program first and try to install a new one?

[Myirdin]

Hi. I used add remove program. And Max to Lux is still in the renderers list. Can't find how to uninstall it properly...

[OmidGhotbi]

That's super strange it could be the source of the problem. one way is to remove it manually. remove these files in 3dsmax root : embree3.dll, luxcore.dll, OpenImageDenoise.dll, OpenImageIO_LuxCore.dll

in the plugin folder LuxMap2020.dlt, LuxMaterial2020.dlt, LuxObjects2020.dlo, MaxToLux2020.dlr

inside plugin/en-US : LuxMap2020.dlt.mui, LuxMaterial2020.dlt.mui, LuxObjects2020.dlo.mui

Also inside maps folder LuxMaps directory.

And it should be completely removed. Then try to reinstall it. After installation if it's not work again please try to rename "LuxMaps" to "LuxMap" inside the map folder and see if it make any change.

[OmidGhotbi]

If none of these work if it is possible to give me anydesk id or teamviewer id so i can check the issues myself, just an alternative solution of course if it's possible for you or perhaps wait for a new installer in just one or two days with more features.

[Myirdin]

Thanks for help. i'll try to uninstall it manually.

I'm afraid my directors won't allow anyone to inspect our computers but i can wait a few days for the next release.

I've just discovered your renderer.

[Myirdin]

So:

• After manual uninstall and fresh re-install. Same crash.
• After renaming LuxMaps to LuxMap: The crash occurs at the very beginning of the mat editor updating. It's new!

[OmidGhotbi]

i see, two options, first, wait for a new build that may fix the issue (i think there is something different cause the issue and that's new) second, if you familiar with Anydesk or Teamviewer give me your id so i can check it by myself

[Myirdin]

I will wait for next build.

Thanks!

[OmidGhotbi]

it could be an issue with the GPU driver or conflict with other plugins. thank you for your time.

[Myirdin]

I have Vray installed in all my 3ds max versions.

For the GPU, it's a quadro p4000. Driver is up to date

[OmidGhotbi]

the strange part is material preview works until the standard material. that's really confusing.

[Myirdin]

It crashes in material preview for a Luxcore material (velvet one) when LuxMaps is renamed to LuxMap

[OmidGhotbi]

please just render a simple scene with just one object nothing else, and tell me is it working or not.

[Myirdin]

But i can't even apply a luxmaterial

[OmidGhotbi]

it doesn't matter, just see if it's working or not. i want the result so i can find the problem perhaps. just a teapot and hit F9 that's all.

[Myirdin]

It Works

[OmidGhotbi]

Thank you, tomorrow night i will release a new build and try to consider your issue in it, we talk again after that.

[Myirdin]

Ok. good luck!

[Myirdin]

Hi.

I've installed the new build but the problem persists. I bet you didn't find a way to solve it for this version.

If you need any help/tests for this matter, don't hesitate to contact me.

[OmidGhotbi]

i just release a new build and i hope this one fixes the issue for you.

[Myirdin]

i just release a new build and i hope this one fixes the issue for you.

Maybe you didn't see my previous post. didn't work with the new build. Exact same crash

[OmidGhotbi]

I'm really confused why it happens for you, it is a little bit unusual. by the way, finding the issue with helping us to improve LuxCore. Can you check with LuxMark and tell me if it works for you especially the stress check. Also, I'll try to send you a scene today later so you can just hit the render and see if the problem came from the material editor or the LuxCore itself on your side or maybe hardware-related.

[Myirdin]

LuxMark? What is it?

Ok for the test scene. Just don't send me a Max2022 version, i didn't install it

[OmidGhotbi]

https://github.com/LuxCoreRender/MaxToLux/blob/master/SampleScenes/DanishMood-Lux.zip Just remember the first time you hit the render it will try to Compile the Kernels so it can take up to 5 minutes, it is not a bug and it is not a crash just wait and it will be fine. As you request 3dsmax 2019 scene.

[OmidGhotbi]

https://github.com/LuxCoreRender/LuxMark/releases/tag/luxmark_v4.0alpha0 LuxMark is a benchmark and hardware test base on LuxCore it's pretty famous actually.

[Myirdin]

https://github.com/LuxCoreRender/LuxMark/releases/tag/luxmark_v4.0alpha0 LuxMark is a benchmark and hardware test base on LuxCore it's pretty famous actually.

Ok, i'll try it. never used other benchmarks that Vray...

[Myirdin]

Hi,

Everything goes fine with the Luxmark.

But error with the test scene. See attached

[OmidGhotbi]

Finally, an error message, error is related to windows local language. What windows language you use? the separator is "," instead of " ." I can work on it now.

[Myirdin]

I use French for Windows, because i'm french.

But i use English for other softwares.

[OmidGhotbi]

ok, thank you I'll try to set my windows language to french so i can have the same issue and fix it by tonight. the quick fix is to change the separator from "," to "." in windows, so for every application, you have standards digit. By the way, i will fix it tonight for sure. Thank you very much for the time you spend here.

[Myirdin]

Glad it has helped.

I will wait for the fix next week as it would be better to leave digits as they are if any of my colleagues needs to use my computer.

Bye

[OmidGhotbi]

It's Done. now you can use it in the European language too. If you see any issue with that let me know because it's a new build. Start with the test scene that I sent to you a few posts earlier and then try other things. In the LuxCoreRender forum, we have a great community that helping each other and if you have any questions you can ask. https://forums.luxcorerender.org/viewtopic.php?f=5&t=1010&start=560#p29626 By the way, enchanté monsieur, J'habite aussi en France.

[Myirdin]

Haha, enchanté aussi. Merci d'avoir réglé le problème, je le teste dès que possible.

Bonne journée!

[Myirdin]

Ok. it works now. Time to learn how to use it.