obj-mtl-loader

obj-mtl-loader

An obj file loader for WebGL, including .mtl loder

Install

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Using npm

npm install obj-mtl-loader

Example

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To run example, npm install, then run npm start, you should see the obj loader working on your http://localhost:3001/.

If you want to edit the example, make sure you run webpack after you make any changes or you can run webpack --progress --colors --watch as the watch mode for webpack.

• only obj file

  var ObjMtlLoader = require("obj-mtl-loader");
  var objMtlLoader = new ObjMtlLoader();
  objMtlLoader.load("./test/objfiles/bunny.obj", function(err, result) {
    if(err){
      /*Handle error here*/
    }
    var vertices = result.vertices;
    var faces = result.faces;
    var normals = result.normals;
  });
  

• with materials(.mtl)

  var ObjMtlLoader = require("obj-mtl-loader");
  var objMtlLoader = new ObjMtlLoader();
  objMtlLoader.load("./test/objfiles/sponza/sponza.obj", "./test/objfiles/sponza/sponza.mtl", function(err, result) {
    if(err){
      /*Handle error here*/
    }
    var vertices = result.vertices;
    var faces = result.faces;
    var normals = result.normals;
    var textureCoords = result.textureCoords;
    var facesMaterialsIndex = result.facesMaterialsIndex;
    var materials = result.materials;
  });
  

  See more examples on examples folder

Attributes

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• vertices: Double Array, each item is an array with 3 or 4 numbers

• normals: Double Array, each item is an array with 3 numbers

• textureCoords: Double Array, each item is an array with 2 or 3 numbers

• faces: Objects inside Array, each Object is

  • indices: the index of the vertices for this face
  • texture: the texture index for this face
  • normal: the normal index of this face

• facesMaterialsIndex(Optional): Objects inside Array, each object is

  • materialName: The name of the material in mtl file
  • materialStartIndex: The start index of this material

• materials: Objects inside Array, each object is

  • name: Name of the material
  • ambient: Ambient color, Ka
  • diffuse: Diffuse color, Kd
  • specular: Specular color, Ks
  • specularExponent: Specular Exponent, Ns
  • transparent: transparent, d || Tr
  • illumMode: Illum mode, illum
  • ambientMap: Ambient map, map_Ka
  • diffuseMap: Diffuse map, map_Kd
  • specularMap: Specular map, map_Ks
  • alphaMat: Alpha map, map_d
  • bumpMap: Bump map, map_bump
  • displacementMap: Displacement map, disp

License

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MIT