MTLLoader: MTLLoader problem

[alwxkxk]

Description of the problem

I think this may be a bug:
When I used MTLLoader load 3ds Max .mtl file,it can't show anything.
At last ,I replaced MTLLoader.js which our company using (may be one or two years ago),it can show.
I compare them and only a few code is different.
Thanks for any help.

Note:MTLLoader2.js is our company using ,which is old.

https://jsfiddle.net/bdtm494j/2/

https://jsfiddle.net/bdtm494j/1/

Three.js version

• Dev
• r91
• ...

Browser

• Chrome

OS

• All of them
• Windows
• macOS
• Linux
• Android
• iOS

Hardware Requirements (graphics card, VR Device, ...)

[kaisalmen]

I think this is fixed already for R92 by #13685.
In R91 only with materialOptions set to { invertTrProperty: true } 3ds max models were loaded properly. The above PR brings back the correct behaviour.

[alwxkxk]

Thanks