Adding a MTL texture to an OBJ in your three.js project is a simple process that can enhance

Question

Adding a MTL texture to an OBJ in your three.js project is a simple process that can enhance

Hello! I am currently working on adding an MTL file to my OBJ in three.js. I had successfully loaded my OBJ and went back to address this issue. However, after adding the code to load the MTL file using MTLLoader, the code seems to be getting stuck at mtlLoader.load(url, ....). This has resulted in only the scene rendering without anything inside of it. I have been using alerts to monitor the progress of the code and noticed that alerts are triggered before this particular statement but not after. Most solutions I have come across suggest using OBJMTLLoader, which unfortunately is no longer supported in the current version of three.js (r74).

javascript 3d three.js

Answer 1

Answer №1

The following code snippet is extracted from the official demo showcasing the loading process of an obj file along with its corresponding mtl file:

var mtlLoader = new THREE.MTLLoader();
mtlLoader.setBaseUrl( 'obj/female02/' );
mtlLoader.setPath( 'obj/female02/' );
var url = "female02_dds.mtl";
mtlLoader.load( url, function( materials ) {

    materials.preload();

    var objLoader = new THREE.OBJLoader();
    objLoader.setMaterials( materials );
    objLoader.setPath( 'obj/female02/' );
    objLoader.load( 'female02.obj', function ( object ) {

        object.position.y = - 75;
        scene.add( object );

    }, onProgress, onError );

});

To link the materials with the OBJ file, use the following line of code:

objLoader.setMaterials( materials );

If you wish to modify the materials, the callback function provided by the mtlLoader returns an instance of THREE.MTLLoader.MaterialCreator. You can access the materials using materials.getAsArray() method. Refer to the source code for a complete list of available functions: https://github.com/mrdoob/three.js/blob/master/examples/js/loaders/MTLLoader.js#L138-L417

Answer 2

The following code snippet is extracted from the official demo showcasing the loading process of an obj file along with its corresponding mtl file:

var mtlLoader = new THREE.MTLLoader();
mtlLoader.setBaseUrl( 'obj/female02/' );
mtlLoader.setPath( 'obj/female02/' );
var url = "female02_dds.mtl";
mtlLoader.load( url, function( materials ) {

    materials.preload();

    var objLoader = new THREE.OBJLoader();
    objLoader.setMaterials( materials );
    objLoader.setPath( 'obj/female02/' );
    objLoader.load( 'female02.obj', function ( object ) {

        object.position.y = - 75;
        scene.add( object );

    }, onProgress, onError );

});

To link the materials with the OBJ file, use the following line of code:

objLoader.setMaterials( materials );

If you wish to modify the materials, the callback function provided by the mtlLoader returns an instance of THREE.MTLLoader.MaterialCreator. You can access the materials using materials.getAsArray() method. Refer to the source code for a complete list of available functions: https://github.com/mrdoob/three.js/blob/master/examples/js/loaders/MTLLoader.js#L138-L417

Adding a MTL texture to an OBJ in your three.js project is a simple process that can enhance

Answer №1

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