Three.js: A material bug with TDSLoader

[lilypen]

Description of the problem

The attached 3ds file is loaded with one mesh and one material by TDSLoader. But actually it has not only one material. The picture 1 shows what's loaded in three.js . And picture 2 shows what is right.

PETERBIL.zip

Three.js version

• [x] Dev
• [ ] r118
• [ ] ...

Browser

• [ ] All of them
• [x] Chrome
• [ ] Firefox
• [ ] Internet Explorer

OS

• [ ] All of them
• [x] Windows
• [ ] macOS
• [ ] Linux
• [ ] Android
• [ ] iOS

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

[Mugen87]

/ping @tentone

[Mugen87]

Result when importing at Sketchfab:

@Tentone According to the Sketchfab 3D inspector, the model uses multiple materials to achieve the different colored parts. However, TDSLoader loads the mesh with just a single material. Maybe this helps to isolate the issue.

[danLawrence]

Result when importing at Sketchfab:

@tentone According to the Sketchfab 3D inspector, the model uses multiple materials to achieve the different colored parts. However, TDSLoader loads the mesh with just a single material. Maybe this helps to isolate the issue.

I met the same problem!
So is there any solution?
or i should just use another format

[Mugen87]

or i should just use another format

It's best to use another format. Try it with glTF whenever possible.

The problem is that 3DS as a 3D format is not officially documented. I've searched for the material specification but did not find something useful so far. Always hard to write loaders without proper documentation.

[Mugen87]

@mrdoob Against the backdrop that 3DS is badly documented and the original developers don't maintain TDSLoader, I think it's better to remove it and recommend users other 3D formats instead.

[mrdoob]

Aww, but I grew up with 3DS... 😅
Lets leave this open and hope that someone is able to fix it in the future.

[tentone]

@Mugen87

I have been spending some time figuring out how to relate the multiple loaded materials with a single mesh. As you have said the 3DS file format is badly documented.

I have been using this page as a reference http://faydoc.tripod.com/formats/3ds.htm, I will keep you up to date with any progress.

I don't think that you should drop the loader, it is still a widely used format. I think that we can improve it to support more features.

[Mugen87]

As long as it is maintained, I'm fine with keeping the loader^^.