Materials not applied on .obj model

[rpajo]

Hello

I am still somewhat new to Babylon and i'm having the following problem. I am loading an .obj model into my scene and I wish to apply a standard material onto the meshes, after the model has loaded.  But my problem is, that the materials are not applied in the success callback. I have a button to maually apply the materials and it works fine.

document.getElementById("applyMaterials").addEventListener("click", function(e) {
   var meshMaterial = new BABYLON.StandardMaterial("meshMaterial", scene);
   meshMaterial.backFaceCulling = false;
   meshesGlobal.forEach(function(element) {
       element.material = meshMaterial;
    }, this);
});

I have tried my code in the playground with the skull.babylon model and it works fine.

http://www.babylonjs-playground.com/index.html#EAY2GH

Am I missing someting?

 

Thanks!

[GameMonetize]

can you save your .obj somewhere so you can reference it in the PG? It's gonna be easier to help if we can see the bug

[Raggar]

does meshesGlobal contain All the meshes from the imported file?

If you use the blender exporter, I think index 0 of the array is a root mesh without any geometry.

[rpajo]

Hey!

So i have recreated the situation with a sample model. 

http://www.babylonjs-playground.com/index.html#EAY2GH#1

I have found that only importing models with mtl files are affected by this. I have also added a button to apply the materials manualy, as I have mentioned. 

Are the any problems that I am missing with applying materials on models with mtl files?

 

Thanks for the help!

[GameMonetize]

Ok I know why this is because the loading of .obj is done in 2 steps:

first the obj is loaded and the callback is called

Then the mtl is loaded and material is applied.

 

If you are only interested by geometry I suggest removing the reference to the .mtl file in the .obj file

[rpajo]

Oh, I understand.

Thanks for celaring this up

Cheers 

[ozRocker]

Maybe we should add this:

		var matTimer = setInterval(function() {
			if (typeof(mesh.material) != "undefined") {
				clearTimeout(matTimer);
				var mat = mesh.material;
				//Do stuff to material
			}
		}, 50);

to the OBJ Loader documentation 'cos a lot of people encounter this problem first time when trying to access .OBJ materials