assimp2json

JSON exporter for Open Asset Import Library

Convert files in 40+ 3D file formats, including Collada, 3DS, OBJ, LWO, FBX, Blender, X, STL, PLY, MS3D, B3D, MD3, MDL, DXF and IFC to plain json.

Download Windows binaries here. (v2.0, October 2013)

Introduction

assimp2json is a command line tool designed to expose the import capabilities of assimp, the Open Asset Import Library to WebGl developers. The tool takes a single 3d model as input file, imports it using assimp and converts the result to json.

assimp2json is platform-independent, its only dependency is assimp itself.

Output Format

The output format is a one-by-one translation of Assimp's C datastructure , with a few changes to make the resulting json look more natural. All fields are lower-case and the prefixes (such as m, pc, ..) are omitted. Array lengths are not written as this information is implicitly given. Empty arrays are not written at all, i.e. a node without children doesn't have an empty children:[] field.

The /samples folder contains some sample json files.

Build

The build system for assimp2json is CMake. To build, use either the CMake GUI or the CMake command line utility. Note: make sure you pulled the assimp submodule, i.e. with git submodule init && git submodule update

Usage

$ assimp2json [flags] input_file [output_file] 

(omit the output_file argument to get the json string on stdout)

Invoke assimp2json with no arguments for detailed information.