3dsmax 2020 missing dlls

[info]

Hello i just install 3dsmax 2020 i work with corona and every model or material that i import or even with itoo i got the error of missing dll mrmaterialattribs.gup

i read an solution on 3dsmax 2018: https://forums.autodesk.com/t5/3ds-max-forum/max-2018-missing-dll-scene-open-errors-mrmaterialattrib...

but its not a solution and there is not mental ray  download anywhere also i got every time an scene converter opening it make me crazy and i cant work like that what the solution ?

[irishman_team_kilber]

MR was discontinued that is why you don't have it in the newer version of 3ds max, unless you brought MR before nvidia discontinued it http://www.cgchannel.com/2017/11/nvidia-discontinues-mental-ray/

[info]

so what i supposed to do?, i dont have MR

get this error everything i import or open a new max?

[whitebirchstudios]

This happened to me too, either after an NVIDIA driver update or a Windows update. I had to update to MAX 2020 to get rid of it. I posted my issue here but was told I was alone with the issue.

[Anonymous]

[Anonymous]

안녕하세요 보내드린캡처화일처럼 v-ray가 비활성화되어서 사용하는데 불편함이 많습니다.

저의 연락처로 빠른연락을 주시고 팀뷰어로 도움을 받기를 희망합니다.

010-5050-7019    감사합니다.

[jacob]

This was killing me, its so frustrating.

Anywho.

Im pretty sure its trying to call an MR Parameter in the render defaults (like light MR shadows)

which doesn't exist anymore

change the default renderer to scanline (no mr) and it seems to go away.

do this go custom defaults switcher - i picked max Default UI.

Had to redo my custom UI buttons, but far out, that pop up was a killer

[jaydeekay]

I was plagued with this issue as well.  Loading the dll error dialog would take several minutes whenever opening a scene or just importing via forest pack or merging.  It seems a file becomes corrupted in the ENU folder and it needs to be reset.

Best solution I've found is:

Firstly, In 3dsMax, go to Customize > Customize User Interface.  Save any workspace configurations you may have such as toolbar setups and quad menus.

Close 3dsMax 

1.  Go to this folder   C:\Users\User\AppData\Local\Autodesk\3dsMax\xxxx - 64bit\ENU

2.  Create a copy of your 3dsMax.ini file 

3.  Then delete the entire ENU folder 

4.  Launch 3dsMax and a new ENU folder will be created.  It will load as if launching for the first time.  

5.  Close 3dsMax

6.  Replace the new 3dsMax.ini file (newly created in the new ENU folder) and replace it with your old copied version.  This will have your hotkeys, user configuration, path config etc.

7.  Launch 3dsMax

8.  Open your Customize User Interface dialog and load the previously saved workspace files.

This will prevent any MrMaterial Dll errors from popping up and will still retain your previous workspace and hotkeys so you don't have to set it all up again.  The ENU files may become corrupted again in the future, in which case you'll have to redo the above method.  Honestly though, it's better to do this than sit there waiting for it to cycle through every materiall dll error every time you open a new file.

Best of luck!

[Anonymous]

Thank you. 

It worked

[Anonymous]

I'm having the same problem and this solution didn't work for me 😕 .
I'm using 3ds 2020 and corona 5, all the models that I try to merge into a scene are black and I get the message of missing dlls, when I try to convert the scene nothing happens, the models are there but they are black and all the materials are missing.

I tried several solutions: like deleting the ENU, deleting the mentalray plugin, converting scenes and relinking bitmaps, nothing works for most of the models I downloaded 😞 

[jon.bell]

Rinkk,

Do you have access to an earlier copy of 3ds Max with mental ray, such as Max 2017 or 2018? If so, can you load the older scene files into those copies of 3ds Max, run the Scene Converter from within 2017/2018, then re-save the scene with Physical Materials instead? Those scenes can then be loaded into 3ds Max 2020 or 2021 with the correct materials.

Can you please let me know if this helps?

[whitebirchstudios]

I am not sure you understand. When I merge a model, pick material from my material library, add a Forest Pro or RailClone element, you get many errors for each thing you do. I can add a Forest Pro style and I'll have to click through 3-4 MR errors. I am talking hundrends of times a day.

[jon.bell]

Hi Whitebirchstudios,

Thanks for the clarification. Can you turn on the Rendering > Scene Cleaner and set it to remove legacy (mental ray) elements automatically from your scenes?

Please let us know if this helps!

[whitebirchstudios]

My problem was solved with a simple line in my INI file.

[jon.bell]

Hi Whitebirchstudios,

Thanks for your update. What line did you update in your 3dsmax.ini file? I'd like to add this information to our Knowledge Base, if possible.

Please let us know, and we hope to hear from you soon!

[whitebirchstudios · Accepted solution]

Go to "C:\Users\<username>\AppData\Local\Autodesk\3dsMax\ 2021 - 64bit\ENU
find the Plugin.User.Settings

make sure it looks like this:

[Directories]
Additional MAX plug-ins=C:\Program Files\Autodesk\3ds Max 2021\PlugIns\
Additional MAX plug-ins NVIDIA=C:\Program Files\Autodesk\3ds Max 2020\PlugIns\NVIDIA\Plugins\
[Help]

[jon.bell]

Hi Whitebirchstudios,

Thanks for your update! I'm going to note this in our Scene Converter AKN articles to help our other 3ds Max 2021 customers with this issue.

Take care, and have a great week!

[dan]

This works, Thank you!!

[Anonymous]

please help me about Max 2019  for mentaray because i opened mentaray flie in max 2019 came black

[robert-then]

Is the solution to copy the nvidia directory from a previous version (currently on an older computer) on to my new computer. Then change the ini file referenced in your post