Is there a way to modify material ID of imported meshes?

[Dilshad Roshan]

While importing meshes designed in software like Autocad and Blender, I noticed that the color of a previously imported mesh is getting applied to many meshes that are later imported. Then I realized that that this is due to conflicting material IDs.

 

Is there a way to modify material ID of an imported mesh or is there any other solution to this problem?

[RaananW]

I guess the best would be to change the material ID before exporting. Is it a possibility?

 

[Dilshad Roshan]

How can it be done?

[V!nc3r]

Just by modifying its name I suppose.

[RaananW]

WOuld be my guess as well. before exporting, make sure your material has a unique id in the software you are exporting from

[Dilshad Roshan]

My app has feature for users to upload 3D models. So it is not always me who create and export meshes. So what I need to know is if there is any programmatic way to avoid this conflict.

[SvenFrankson]

I need something like this too (removing textures from imported material), the way we do it is

$.json(
  {
    url: "model.babylon",
    success: (rawData) => {
      data.id = "newId";
      data.mesh.material.id = "newId";
      BABYLON.SceneLoader.ImportMesh(
         "",
         "data://" + JSON.stringify(rawData);
         scene,
         (meshes, particles, skeletons) => {
           // success callback 
         }
      )
    }
  }
)

(It's pseudocode, the success callback in the first $.json call is likely to be much more complicated...)

The idea is you first load the .babylon file as a Javascript object, so you may edit it easily.

Once all changes are made, you serialize and re-inject it. 

(It would be better to be able to load a mesh from a Javascript object, but it requires some changes in Babylon code...)