serialize-wavefront-obj

Wavefront OBJ serializer

Serializes a mesh to a Wavefront OBJ string.

Supports vertex normals and UV coordinates. Doesn't support material libraries, nor multiple meshes embedded in the same file.

Install

$ npm install serialize-wavefront-obj

Example

var serializeOBJ = require('serialize-wavefront-obj');

var mesh = {
  positions: [
    [-1.0, 0.0, 0.0],
    [ 0.0, 1.0, 0.0],
    [ 1.0, 0.0, 0.0]
  ],
  cells: [
    [0, 1, 2]
  ]
};

var str = serializeOBJ(mesh.cells, mesh.positions/*, vertexNormals */);
console.log(str);
/*
v -1 0 0
v 0 1 0
v 1 0 0
f 1// 2// 3//
*/

Usage

serializeOBJ(cells, positions[, vertexNormals, vertexUVs, faceNormals, faceUVs, name])

• cells mesh cells / faces
• positions mesh vertex positions
• vertexNormals optional vertex normals.
• vertexUVs optional vertex UV coordinates.
• faceNormals optional array formated like cells that indicates the normal indices. Defaults to cells if falsy and vertexNormals is provided.
• faceUVs optional array formated like cells that indicates the UV indices. Defaults to cells if falsy and vertexUVs is provided.
• name optional mesh name. If specified outputs an o name line at the beginning of the file.

Argument position is mandatory. Provide falsy values for optional args you do not wish to use.