This page hosts a formal specification of MagicaVoxel File using Kaitai Struct. This specification can be automatically translated into a variety of programming languages to get a parsing library.
All parsing code for JavaScript generated by Kaitai Struct depends on the JavaScript runtime library. You have to install it before you can parse data.
The JavaScript runtime library is available at npm:
npm install kaitai-structSee the usage examples in the JavaScript notes.
Parse structure from an ArrayBuffer:
var arrayBuffer = ...;
var data = new MagicavoxelVox(new KaitaiStream(arrayBuffer));
After that, one can get various attributes from the structure by accessing fields or properties like:
data.version // => 150 expected
// This is a generated file! Please edit source .ksy file and use kaitai-struct-compiler to rebuild
(function (root, factory) {
if (typeof define === 'function' && define.amd) {
define(['exports', 'kaitai-struct/KaitaiStream'], factory);
} else if (typeof exports === 'object' && exports !== null && typeof exports.nodeType !== 'number') {
factory(exports, require('kaitai-struct/KaitaiStream'));
} else {
factory(root.MagicavoxelVox || (root.MagicavoxelVox = {}), root.KaitaiStream);
}
})(typeof self !== 'undefined' ? self : this, function (MagicavoxelVox_, KaitaiStream) {
/**
* @see {@link https://ephtracy.github.io/|MagicaVoxel Homepage}
* @see {@link https://github.com/ephtracy/voxel-model/blob/master/MagicaVoxel-file-format-vox.txt|Format Description}
*/
var MagicavoxelVox = (function() {
MagicavoxelVox.ChunkType = Object.freeze({
MAIN: 1296124238,
MATT: 1296127060,
PACK: 1346454347,
RGBA: 1380401729,
SIZE: 1397316165,
XYZI: 1482250825,
1296124238: "MAIN",
1296127060: "MATT",
1346454347: "PACK",
1380401729: "RGBA",
1397316165: "SIZE",
1482250825: "XYZI",
});
MagicavoxelVox.MaterialType = Object.freeze({
DIFFUSE: 0,
METAL: 1,
GLASS: 2,
EMISSIVE: 3,
0: "DIFFUSE",
1: "METAL",
2: "GLASS",
3: "EMISSIVE",
});
MagicavoxelVox.PropertyBitsType = Object.freeze({
PLASTIC: 1,
ROUGHNESS: 2,
SPECULAR: 4,
IOR: 8,
ATTENUATION: 16,
POWER: 32,
GLOW: 64,
IS_TOTAL_POWER: 128,
1: "PLASTIC",
2: "ROUGHNESS",
4: "SPECULAR",
8: "IOR",
16: "ATTENUATION",
32: "POWER",
64: "GLOW",
128: "IS_TOTAL_POWER",
});
function MagicavoxelVox(_io, _parent, _root) {
this._io = _io;
this._parent = _parent;
this._root = _root || this;
this._read();
}
MagicavoxelVox.prototype._read = function() {
this.magic = this._io.readBytes(4);
if (!((KaitaiStream.byteArrayCompare(this.magic, new Uint8Array([86, 79, 88, 32])) == 0))) {
throw new KaitaiStream.ValidationNotEqualError(new Uint8Array([86, 79, 88, 32]), this.magic, this._io, "/seq/0");
}
this.version = this._io.readU4le();
this.main = new Chunk(this._io, this, this._root);
}
var Chunk = MagicavoxelVox.Chunk = (function() {
function Chunk(_io, _parent, _root) {
this._io = _io;
this._parent = _parent;
this._root = _root;
this._read();
}
Chunk.prototype._read = function() {
this.chunkId = this._io.readU4be();
this.numBytesOfChunkContent = this._io.readU4le();
this.numBytesOfChildrenChunks = this._io.readU4le();
if (this.numBytesOfChunkContent != 0) {
switch (this.chunkId) {
case MagicavoxelVox.ChunkType.MATT:
this._raw_chunkContent = this._io.readBytes(this.numBytesOfChunkContent);
var _io__raw_chunkContent = new KaitaiStream(this._raw_chunkContent);
this.chunkContent = new Matt(_io__raw_chunkContent, this, this._root);
break;
case MagicavoxelVox.ChunkType.PACK:
this._raw_chunkContent = this._io.readBytes(this.numBytesOfChunkContent);
var _io__raw_chunkContent = new KaitaiStream(this._raw_chunkContent);
this.chunkContent = new Pack(_io__raw_chunkContent, this, this._root);
break;
case MagicavoxelVox.ChunkType.RGBA:
this._raw_chunkContent = this._io.readBytes(this.numBytesOfChunkContent);
var _io__raw_chunkContent = new KaitaiStream(this._raw_chunkContent);
this.chunkContent = new Rgba(_io__raw_chunkContent, this, this._root);
break;
case MagicavoxelVox.ChunkType.SIZE:
this._raw_chunkContent = this._io.readBytes(this.numBytesOfChunkContent);
var _io__raw_chunkContent = new KaitaiStream(this._raw_chunkContent);
this.chunkContent = new Size(_io__raw_chunkContent, this, this._root);
break;
case MagicavoxelVox.ChunkType.XYZI:
this._raw_chunkContent = this._io.readBytes(this.numBytesOfChunkContent);
var _io__raw_chunkContent = new KaitaiStream(this._raw_chunkContent);
this.chunkContent = new Xyzi(_io__raw_chunkContent, this, this._root);
break;
default:
this.chunkContent = this._io.readBytes(this.numBytesOfChunkContent);
break;
}
}
if (this.numBytesOfChildrenChunks != 0) {
this.childrenChunks = [];
var i = 0;
while (!this._io.isEof()) {
this.childrenChunks.push(new Chunk(this._io, this, this._root));
i++;
}
}
}
return Chunk;
})();
var Color = MagicavoxelVox.Color = (function() {
function Color(_io, _parent, _root) {
this._io = _io;
this._parent = _parent;
this._root = _root;
this._read();
}
Color.prototype._read = function() {
this.r = this._io.readU1();
this.g = this._io.readU1();
this.b = this._io.readU1();
this.a = this._io.readU1();
}
return Color;
})();
var Matt = MagicavoxelVox.Matt = (function() {
function Matt(_io, _parent, _root) {
this._io = _io;
this._parent = _parent;
this._root = _root;
this._read();
}
Matt.prototype._read = function() {
this.id = this._io.readU4le();
this.materialType = this._io.readU4le();
this.materialWeight = this._io.readF4le();
this.propertyBits = this._io.readU4le();
if (this.hasPlastic) {
this.plastic = this._io.readF4le();
}
if (this.hasRoughness) {
this.roughness = this._io.readF4le();
}
if (this.hasSpecular) {
this.specular = this._io.readF4le();
}
if (this.hasIor) {
this.ior = this._io.readF4le();
}
if (this.hasAttenuation) {
this.attenuation = this._io.readF4le();
}
if (this.hasPower) {
this.power = this._io.readF4le();
}
if (this.hasGlow) {
this.glow = this._io.readF4le();
}
if (this.hasIsTotalPower) {
this.isTotalPower = this._io.readF4le();
}
}
Object.defineProperty(Matt.prototype, 'hasAttenuation', {
get: function() {
if (this._m_hasAttenuation !== undefined)
return this._m_hasAttenuation;
this._m_hasAttenuation = (this.propertyBits & 16) != 0;
return this._m_hasAttenuation;
}
});
Object.defineProperty(Matt.prototype, 'hasGlow', {
get: function() {
if (this._m_hasGlow !== undefined)
return this._m_hasGlow;
this._m_hasGlow = (this.propertyBits & 64) != 0;
return this._m_hasGlow;
}
});
Object.defineProperty(Matt.prototype, 'hasIor', {
get: function() {
if (this._m_hasIor !== undefined)
return this._m_hasIor;
this._m_hasIor = (this.propertyBits & 8) != 0;
return this._m_hasIor;
}
});
Object.defineProperty(Matt.prototype, 'hasIsTotalPower', {
get: function() {
if (this._m_hasIsTotalPower !== undefined)
return this._m_hasIsTotalPower;
this._m_hasIsTotalPower = (this.propertyBits & 128) != 0;
return this._m_hasIsTotalPower;
}
});
Object.defineProperty(Matt.prototype, 'hasPlastic', {
get: function() {
if (this._m_hasPlastic !== undefined)
return this._m_hasPlastic;
this._m_hasPlastic = (this.propertyBits & 1) != 0;
return this._m_hasPlastic;
}
});
Object.defineProperty(Matt.prototype, 'hasPower', {
get: function() {
if (this._m_hasPower !== undefined)
return this._m_hasPower;
this._m_hasPower = (this.propertyBits & 32) != 0;
return this._m_hasPower;
}
});
Object.defineProperty(Matt.prototype, 'hasRoughness', {
get: function() {
if (this._m_hasRoughness !== undefined)
return this._m_hasRoughness;
this._m_hasRoughness = (this.propertyBits & 2) != 0;
return this._m_hasRoughness;
}
});
Object.defineProperty(Matt.prototype, 'hasSpecular', {
get: function() {
if (this._m_hasSpecular !== undefined)
return this._m_hasSpecular;
this._m_hasSpecular = (this.propertyBits & 4) != 0;
return this._m_hasSpecular;
}
});
return Matt;
})();
var Pack = MagicavoxelVox.Pack = (function() {
function Pack(_io, _parent, _root) {
this._io = _io;
this._parent = _parent;
this._root = _root;
this._read();
}
Pack.prototype._read = function() {
this.numModels = this._io.readU4le();
}
return Pack;
})();
var Rgba = MagicavoxelVox.Rgba = (function() {
function Rgba(_io, _parent, _root) {
this._io = _io;
this._parent = _parent;
this._root = _root;
this._read();
}
Rgba.prototype._read = function() {
this.colors = [];
for (var i = 0; i < 256; i++) {
this.colors.push(new Color(this._io, this, this._root));
}
}
return Rgba;
})();
var Size = MagicavoxelVox.Size = (function() {
function Size(_io, _parent, _root) {
this._io = _io;
this._parent = _parent;
this._root = _root;
this._read();
}
Size.prototype._read = function() {
this.sizeX = this._io.readU4le();
this.sizeY = this._io.readU4le();
this.sizeZ = this._io.readU4le();
}
return Size;
})();
var Voxel = MagicavoxelVox.Voxel = (function() {
function Voxel(_io, _parent, _root) {
this._io = _io;
this._parent = _parent;
this._root = _root;
this._read();
}
Voxel.prototype._read = function() {
this.x = this._io.readU1();
this.y = this._io.readU1();
this.z = this._io.readU1();
this.colorIndex = this._io.readU1();
}
return Voxel;
})();
var Xyzi = MagicavoxelVox.Xyzi = (function() {
function Xyzi(_io, _parent, _root) {
this._io = _io;
this._parent = _parent;
this._root = _root;
this._read();
}
Xyzi.prototype._read = function() {
this.numVoxels = this._io.readU4le();
this.voxels = [];
for (var i = 0; i < this.numVoxels; i++) {
this.voxels.push(new Voxel(this._io, this, this._root));
}
}
return Xyzi;
})();
/**
* 150 expected
*/
return MagicavoxelVox;
})();
MagicavoxelVox_.MagicavoxelVox = MagicavoxelVox;
});