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📄 VOXLoader.js

📊 Analysis Summary

Metric Count
🔧 Functions 3
🧱 Classes 3
📦 Imports 12
📊 Variables & Constants 49

📚 Table of Contents

🛠️ File Location:

📂 examples/jsm/loaders/VOXLoader.js

📦 Imports

Name Source
BufferGeometry three
Color three
Data3DTexture three
FileLoader three
Float32BufferAttribute three
Loader three
LinearFilter three
Mesh three
MeshStandardMaterial three
NearestFilter three
RedFormat three
SRGBColorSpace three

Variables & Constants

Name Type Kind Value Exported
scope this let/var this
loader any let/var new FileLoader( scope.manager )
data DataView<ArrayBuffer> let/var new DataView( buffer )
DEFAULT_PALETTE number[] let/var [ 0x00000000, 0xffffffff, 0xffccffff, 0xff99ffff, 0xff66ffff, 0xff33ffff, 0xf...
i number let/var 8
chunk any let/var *not shown*
chunks any[] let/var []
id string let/var ''
palette number[] let/var [ 0 ]
data any let/var chunk.data
size any let/var chunk.size
palette any let/var chunk.palette
vertices any[] let/var []
colors any[] let/var []
nx number[] let/var [ 0, 0, 0, 0, 0, 1, 0, 1, 0, 0, 1, 1, 0, 1, 0, 0, 0, 1 ]
px number[] let/var [ 1, 0, 0, 1, 1, 0, 1, 0, 1, 1, 1, 1, 1, 0, 1, 1, 1, 0 ]
py number[] let/var [ 0, 0, 1, 1, 0, 1, 0, 1, 1, 1, 1, 1, 0, 1, 1, 1, 0, 1 ]
ny number[] let/var [ 0, 0, 0, 0, 1, 0, 1, 0, 0, 1, 1, 0, 1, 0, 0, 0, 1, 0 ]
nz number[] let/var [ 0, 0, 1, 0, 0, 0, 1, 0, 1, 1, 0, 0, 1, 0, 1, 0, 0, 0 ]
pz number[] let/var [ 0, 1, 1, 1, 1, 1, 0, 1, 0, 1, 1, 0, 0, 1, 0, 1, 1, 1 ]
_color any let/var new Color()
offsety any let/var size.x
offsetz number let/var size.x * size.y
array Uint8Array<ArrayBuffer> let/var new Uint8Array( size.x * size.y * size.z )
x any let/var data[ j + 0 ]
y any let/var data[ j + 1 ]
z any let/var data[ j + 2 ]
index any let/var x + ( y * offsety ) + ( z * offsetz )
hasColors boolean let/var false
x any let/var data[ j + 0 ]
y any let/var data[ j + 1 ]
z any let/var data[ j + 2 ]
c any let/var data[ j + 3 ]
hex any let/var palette[ c ]
r number let/var ( hex >> 0 & 0xff ) / 0xff
g number let/var ( hex >> 8 & 0xff ) / 0xff
b number let/var ( hex >> 16 & 0xff ) / 0xff
index any let/var x + ( y * offsety ) + ( z * offsetz )
geometry any let/var new BufferGeometry()
material any let/var new MeshStandardMaterial()
data any let/var chunk.data
size any let/var chunk.size
offsety any let/var size.x
offsetz number let/var size.x * size.y
array Uint8Array<ArrayBuffer> let/var new Uint8Array( size.x * size.y * size.z )
x any let/var data[ j + 0 ]
y any let/var data[ j + 1 ]
z any let/var data[ j + 2 ]
index any let/var x + ( y * offsety ) + ( z * offsetz )

Functions

VOXLoader.load(url: string, onLoad: (arg0: any[]) => any, onProgress: onProgressCallback, onError: onErrorCallback): void

JSDoc:

/**
     * Starts loading from the given URL and passes the loaded VOX asset
     * to the `onLoad()` callback.
     *
     * @param {string} url - The path/URL of the file to be loaded. This can also be a data URI.
     * @param {function(Array<Object>)} onLoad - Executed when the loading process has been finished.
     * @param {onProgressCallback} onProgress - Executed while the loading is in progress.
     * @param {onErrorCallback} onError - Executed when errors occur.
     */

Parameters:

  • url string
  • onLoad (arg0: any[]) => any
  • onProgress onProgressCallback
  • onError onErrorCallback

Returns: void

Calls:

  • loader.setPath
  • loader.setResponseType
  • loader.setRequestHeader
  • loader.load
  • onLoad
  • scope.parse
  • onError
  • console.error
  • scope.manager.itemError
Code
load( url, onLoad, onProgress, onError ) {

        const scope = this;

        const loader = new FileLoader( scope.manager );
        loader.setPath( scope.path );
        loader.setResponseType( 'arraybuffer' );
        loader.setRequestHeader( scope.requestHeader );
        loader.load( url, function ( buffer ) {

            try {

                onLoad( scope.parse( buffer ) );

            } catch ( e ) {

                if ( onError ) {

                    onError( e );

                } else {

                    console.error( e );

                }

                scope.manager.itemError( url );

            }

        }, onProgress, onError );

    }

VOXLoader.parse(buffer: ArrayBuffer): any[]

JSDoc:

/**
     * Parses the given VOX data and returns the resulting chunks.
     *
     * @param {ArrayBuffer} buffer - The raw VOX data as an array buffer.
     * @return {Array<Object>} The parsed chunks.
     */

Parameters:

  • buffer ArrayBuffer

Returns: any[]

Calls:

  • data.getUint32
  • console.error
  • String.fromCharCode
  • data.getUint8
  • chunks.push

Internal Comments:

// console.log( id, chunkSize, childChunks ); (x3)

Code
parse( buffer ) {

        const data = new DataView( buffer );

        const id = data.getUint32( 0, true );
        const version = data.getUint32( 4, true );

        if ( id !== 542658390 ) {

            console.error( 'THREE.VOXLoader: Invalid VOX file.' );
            return;

        }

        if ( version !== 150 ) {

            console.error( 'THREE.VOXLoader: Invalid VOX file. Unsupported version:', version );
            return;

        }

        const DEFAULT_PALETTE = [
            0x00000000, 0xffffffff, 0xffccffff, 0xff99ffff, 0xff66ffff, 0xff33ffff, 0xff00ffff, 0xffffccff,
            0xffccccff, 0xff99ccff, 0xff66ccff, 0xff33ccff, 0xff00ccff, 0xffff99ff, 0xffcc99ff, 0xff9999ff,
            0xff6699ff, 0xff3399ff, 0xff0099ff, 0xffff66ff, 0xffcc66ff, 0xff9966ff, 0xff6666ff, 0xff3366ff,
            0xff0066ff, 0xffff33ff, 0xffcc33ff, 0xff9933ff, 0xff6633ff, 0xff3333ff, 0xff0033ff, 0xffff00ff,
            0xffcc00ff, 0xff9900ff, 0xff6600ff, 0xff3300ff, 0xff0000ff, 0xffffffcc, 0xffccffcc, 0xff99ffcc,
            0xff66ffcc, 0xff33ffcc, 0xff00ffcc, 0xffffcccc, 0xffcccccc, 0xff99cccc, 0xff66cccc, 0xff33cccc,
            0xff00cccc, 0xffff99cc, 0xffcc99cc, 0xff9999cc, 0xff6699cc, 0xff3399cc, 0xff0099cc, 0xffff66cc,
            0xffcc66cc, 0xff9966cc, 0xff6666cc, 0xff3366cc, 0xff0066cc, 0xffff33cc, 0xffcc33cc, 0xff9933cc,
            0xff6633cc, 0xff3333cc, 0xff0033cc, 0xffff00cc, 0xffcc00cc, 0xff9900cc, 0xff6600cc, 0xff3300cc,
            0xff0000cc, 0xffffff99, 0xffccff99, 0xff99ff99, 0xff66ff99, 0xff33ff99, 0xff00ff99, 0xffffcc99,
            0xffcccc99, 0xff99cc99, 0xff66cc99, 0xff33cc99, 0xff00cc99, 0xffff9999, 0xffcc9999, 0xff999999,
            0xff669999, 0xff339999, 0xff009999, 0xffff6699, 0xffcc6699, 0xff996699, 0xff666699, 0xff336699,
            0xff006699, 0xffff3399, 0xffcc3399, 0xff993399, 0xff663399, 0xff333399, 0xff003399, 0xffff0099,
            0xffcc0099, 0xff990099, 0xff660099, 0xff330099, 0xff000099, 0xffffff66, 0xffccff66, 0xff99ff66,
            0xff66ff66, 0xff33ff66, 0xff00ff66, 0xffffcc66, 0xffcccc66, 0xff99cc66, 0xff66cc66, 0xff33cc66,
            0xff00cc66, 0xffff9966, 0xffcc9966, 0xff999966, 0xff669966, 0xff339966, 0xff009966, 0xffff6666,
            0xffcc6666, 0xff996666, 0xff666666, 0xff336666, 0xff006666, 0xffff3366, 0xffcc3366, 0xff993366,
            0xff663366, 0xff333366, 0xff003366, 0xffff0066, 0xffcc0066, 0xff990066, 0xff660066, 0xff330066,
            0xff000066, 0xffffff33, 0xffccff33, 0xff99ff33, 0xff66ff33, 0xff33ff33, 0xff00ff33, 0xffffcc33,
            0xffcccc33, 0xff99cc33, 0xff66cc33, 0xff33cc33, 0xff00cc33, 0xffff9933, 0xffcc9933, 0xff999933,
            0xff669933, 0xff339933, 0xff009933, 0xffff6633, 0xffcc6633, 0xff996633, 0xff666633, 0xff336633,
            0xff006633, 0xffff3333, 0xffcc3333, 0xff993333, 0xff663333, 0xff333333, 0xff003333, 0xffff0033,
            0xffcc0033, 0xff990033, 0xff660033, 0xff330033, 0xff000033, 0xffffff00, 0xffccff00, 0xff99ff00,
            0xff66ff00, 0xff33ff00, 0xff00ff00, 0xffffcc00, 0xffcccc00, 0xff99cc00, 0xff66cc00, 0xff33cc00,
            0xff00cc00, 0xffff9900, 0xffcc9900, 0xff999900, 0xff669900, 0xff339900, 0xff009900, 0xffff6600,
            0xffcc6600, 0xff996600, 0xff666600, 0xff336600, 0xff006600, 0xffff3300, 0xffcc3300, 0xff993300,
            0xff663300, 0xff333300, 0xff003300, 0xffff0000, 0xffcc0000, 0xff990000, 0xff660000, 0xff330000,
            0xff0000ee, 0xff0000dd, 0xff0000bb, 0xff0000aa, 0xff000088, 0xff000077, 0xff000055, 0xff000044,
            0xff000022, 0xff000011, 0xff00ee00, 0xff00dd00, 0xff00bb00, 0xff00aa00, 0xff008800, 0xff007700,
            0xff005500, 0xff004400, 0xff002200, 0xff001100, 0xffee0000, 0xffdd0000, 0xffbb0000, 0xffaa0000,
            0xff880000, 0xff770000, 0xff550000, 0xff440000, 0xff220000, 0xff110000, 0xffeeeeee, 0xffdddddd,
            0xffbbbbbb, 0xffaaaaaa, 0xff888888, 0xff777777, 0xff555555, 0xff444444, 0xff222222, 0xff111111
        ];

        let i = 8;

        let chunk;
        const chunks = [];

        while ( i < data.byteLength ) {

            let id = '';

            for ( let j = 0; j < 4; j ++ ) {

                id += String.fromCharCode( data.getUint8( i ++ ) );

            }

            const chunkSize = data.getUint32( i, true ); i += 4;
            i += 4; // childChunks

            if ( id === 'SIZE' ) {

                const x = data.getUint32( i, true ); i += 4;
                const y = data.getUint32( i, true ); i += 4;
                const z = data.getUint32( i, true ); i += 4;

                chunk = {
                    palette: DEFAULT_PALETTE,
                    size: { x: x, y: y, z: z },
                };

                chunks.push( chunk );

                i += chunkSize - ( 3 * 4 );

            } else if ( id === 'XYZI' ) {

                const numVoxels = data.getUint32( i, true ); i += 4;
                chunk.data = new Uint8Array( buffer, i, numVoxels * 4 );

                i += numVoxels * 4;

            } else if ( id === 'RGBA' ) {

                const palette = [ 0 ];

                for ( let j = 0; j < 256; j ++ ) {

                    palette[ j + 1 ] = data.getUint32( i, true ); i += 4;

                }

                chunk.palette = palette;

            } else {

                // console.log( id, chunkSize, childChunks );

                i += chunkSize;

            }

        }

        return chunks;

    }

add(tile: any, x: any, y: any, z: any, r: any, g: any, b: any): void

Parameters:

  • tile any
  • x any
  • y any
  • z any
  • r any
  • g any
  • b any

Returns: void

Calls:

  • _color.setRGB
  • vertices.push
  • colors.push
Code
function add( tile, x, y, z, r, g, b ) {

            x -= size.x / 2;
            y -= size.z / 2;
            z += size.y / 2;

            for ( let i = 0; i < 18; i += 3 ) {

                _color.setRGB( r, g, b, SRGBColorSpace );

                vertices.push( tile[ i + 0 ] + x, tile[ i + 1 ] + y, tile[ i + 2 ] + z );
                colors.push( _color.r, _color.g, _color.b );

            }

        }

Classes

VOXLoader

Class Code
class VOXLoader extends Loader {

    /**
     * Starts loading from the given URL and passes the loaded VOX asset
     * to the `onLoad()` callback.
     *
     * @param {string} url - The path/URL of the file to be loaded. This can also be a data URI.
     * @param {function(Array<Object>)} onLoad - Executed when the loading process has been finished.
     * @param {onProgressCallback} onProgress - Executed while the loading is in progress.
     * @param {onErrorCallback} onError - Executed when errors occur.
     */
    load( url, onLoad, onProgress, onError ) {

        const scope = this;

        const loader = new FileLoader( scope.manager );
        loader.setPath( scope.path );
        loader.setResponseType( 'arraybuffer' );
        loader.setRequestHeader( scope.requestHeader );
        loader.load( url, function ( buffer ) {

            try {

                onLoad( scope.parse( buffer ) );

            } catch ( e ) {

                if ( onError ) {

                    onError( e );

                } else {

                    console.error( e );

                }

                scope.manager.itemError( url );

            }

        }, onProgress, onError );

    }

    /**
     * Parses the given VOX data and returns the resulting chunks.
     *
     * @param {ArrayBuffer} buffer - The raw VOX data as an array buffer.
     * @return {Array<Object>} The parsed chunks.
     */
    parse( buffer ) {

        const data = new DataView( buffer );

        const id = data.getUint32( 0, true );
        const version = data.getUint32( 4, true );

        if ( id !== 542658390 ) {

            console.error( 'THREE.VOXLoader: Invalid VOX file.' );
            return;

        }

        if ( version !== 150 ) {

            console.error( 'THREE.VOXLoader: Invalid VOX file. Unsupported version:', version );
            return;

        }

        const DEFAULT_PALETTE = [
            0x00000000, 0xffffffff, 0xffccffff, 0xff99ffff, 0xff66ffff, 0xff33ffff, 0xff00ffff, 0xffffccff,
            0xffccccff, 0xff99ccff, 0xff66ccff, 0xff33ccff, 0xff00ccff, 0xffff99ff, 0xffcc99ff, 0xff9999ff,
            0xff6699ff, 0xff3399ff, 0xff0099ff, 0xffff66ff, 0xffcc66ff, 0xff9966ff, 0xff6666ff, 0xff3366ff,
            0xff0066ff, 0xffff33ff, 0xffcc33ff, 0xff9933ff, 0xff6633ff, 0xff3333ff, 0xff0033ff, 0xffff00ff,
            0xffcc00ff, 0xff9900ff, 0xff6600ff, 0xff3300ff, 0xff0000ff, 0xffffffcc, 0xffccffcc, 0xff99ffcc,
            0xff66ffcc, 0xff33ffcc, 0xff00ffcc, 0xffffcccc, 0xffcccccc, 0xff99cccc, 0xff66cccc, 0xff33cccc,
            0xff00cccc, 0xffff99cc, 0xffcc99cc, 0xff9999cc, 0xff6699cc, 0xff3399cc, 0xff0099cc, 0xffff66cc,
            0xffcc66cc, 0xff9966cc, 0xff6666cc, 0xff3366cc, 0xff0066cc, 0xffff33cc, 0xffcc33cc, 0xff9933cc,
            0xff6633cc, 0xff3333cc, 0xff0033cc, 0xffff00cc, 0xffcc00cc, 0xff9900cc, 0xff6600cc, 0xff3300cc,
            0xff0000cc, 0xffffff99, 0xffccff99, 0xff99ff99, 0xff66ff99, 0xff33ff99, 0xff00ff99, 0xffffcc99,
            0xffcccc99, 0xff99cc99, 0xff66cc99, 0xff33cc99, 0xff00cc99, 0xffff9999, 0xffcc9999, 0xff999999,
            0xff669999, 0xff339999, 0xff009999, 0xffff6699, 0xffcc6699, 0xff996699, 0xff666699, 0xff336699,
            0xff006699, 0xffff3399, 0xffcc3399, 0xff993399, 0xff663399, 0xff333399, 0xff003399, 0xffff0099,
            0xffcc0099, 0xff990099, 0xff660099, 0xff330099, 0xff000099, 0xffffff66, 0xffccff66, 0xff99ff66,
            0xff66ff66, 0xff33ff66, 0xff00ff66, 0xffffcc66, 0xffcccc66, 0xff99cc66, 0xff66cc66, 0xff33cc66,
            0xff00cc66, 0xffff9966, 0xffcc9966, 0xff999966, 0xff669966, 0xff339966, 0xff009966, 0xffff6666,
            0xffcc6666, 0xff996666, 0xff666666, 0xff336666, 0xff006666, 0xffff3366, 0xffcc3366, 0xff993366,
            0xff663366, 0xff333366, 0xff003366, 0xffff0066, 0xffcc0066, 0xff990066, 0xff660066, 0xff330066,
            0xff000066, 0xffffff33, 0xffccff33, 0xff99ff33, 0xff66ff33, 0xff33ff33, 0xff00ff33, 0xffffcc33,
            0xffcccc33, 0xff99cc33, 0xff66cc33, 0xff33cc33, 0xff00cc33, 0xffff9933, 0xffcc9933, 0xff999933,
            0xff669933, 0xff339933, 0xff009933, 0xffff6633, 0xffcc6633, 0xff996633, 0xff666633, 0xff336633,
            0xff006633, 0xffff3333, 0xffcc3333, 0xff993333, 0xff663333, 0xff333333, 0xff003333, 0xffff0033,
            0xffcc0033, 0xff990033, 0xff660033, 0xff330033, 0xff000033, 0xffffff00, 0xffccff00, 0xff99ff00,
            0xff66ff00, 0xff33ff00, 0xff00ff00, 0xffffcc00, 0xffcccc00, 0xff99cc00, 0xff66cc00, 0xff33cc00,
            0xff00cc00, 0xffff9900, 0xffcc9900, 0xff999900, 0xff669900, 0xff339900, 0xff009900, 0xffff6600,
            0xffcc6600, 0xff996600, 0xff666600, 0xff336600, 0xff006600, 0xffff3300, 0xffcc3300, 0xff993300,
            0xff663300, 0xff333300, 0xff003300, 0xffff0000, 0xffcc0000, 0xff990000, 0xff660000, 0xff330000,
            0xff0000ee, 0xff0000dd, 0xff0000bb, 0xff0000aa, 0xff000088, 0xff000077, 0xff000055, 0xff000044,
            0xff000022, 0xff000011, 0xff00ee00, 0xff00dd00, 0xff00bb00, 0xff00aa00, 0xff008800, 0xff007700,
            0xff005500, 0xff004400, 0xff002200, 0xff001100, 0xffee0000, 0xffdd0000, 0xffbb0000, 0xffaa0000,
            0xff880000, 0xff770000, 0xff550000, 0xff440000, 0xff220000, 0xff110000, 0xffeeeeee, 0xffdddddd,
            0xffbbbbbb, 0xffaaaaaa, 0xff888888, 0xff777777, 0xff555555, 0xff444444, 0xff222222, 0xff111111
        ];

        let i = 8;

        let chunk;
        const chunks = [];

        while ( i < data.byteLength ) {

            let id = '';

            for ( let j = 0; j < 4; j ++ ) {

                id += String.fromCharCode( data.getUint8( i ++ ) );

            }

            const chunkSize = data.getUint32( i, true ); i += 4;
            i += 4; // childChunks

            if ( id === 'SIZE' ) {

                const x = data.getUint32( i, true ); i += 4;
                const y = data.getUint32( i, true ); i += 4;
                const z = data.getUint32( i, true ); i += 4;

                chunk = {
                    palette: DEFAULT_PALETTE,
                    size: { x: x, y: y, z: z },
                };

                chunks.push( chunk );

                i += chunkSize - ( 3 * 4 );

            } else if ( id === 'XYZI' ) {

                const numVoxels = data.getUint32( i, true ); i += 4;
                chunk.data = new Uint8Array( buffer, i, numVoxels * 4 );

                i += numVoxels * 4;

            } else if ( id === 'RGBA' ) {

                const palette = [ 0 ];

                for ( let j = 0; j < 256; j ++ ) {

                    palette[ j + 1 ] = data.getUint32( i, true ); i += 4;

                }

                chunk.palette = palette;

            } else {

                // console.log( id, chunkSize, childChunks );

                i += chunkSize;

            }

        }

        return chunks;

    }

}

Methods

load(url: string, onLoad: (arg0: any[]) => any, onProgress: onProgressCallback, onError: onErrorCallback): void
Code
load( url, onLoad, onProgress, onError ) {

        const scope = this;

        const loader = new FileLoader( scope.manager );
        loader.setPath( scope.path );
        loader.setResponseType( 'arraybuffer' );
        loader.setRequestHeader( scope.requestHeader );
        loader.load( url, function ( buffer ) {

            try {

                onLoad( scope.parse( buffer ) );

            } catch ( e ) {

                if ( onError ) {

                    onError( e );

                } else {

                    console.error( e );

                }

                scope.manager.itemError( url );

            }

        }, onProgress, onError );

    }
parse(buffer: ArrayBuffer): any[]
Code
parse( buffer ) {

        const data = new DataView( buffer );

        const id = data.getUint32( 0, true );
        const version = data.getUint32( 4, true );

        if ( id !== 542658390 ) {

            console.error( 'THREE.VOXLoader: Invalid VOX file.' );
            return;

        }

        if ( version !== 150 ) {

            console.error( 'THREE.VOXLoader: Invalid VOX file. Unsupported version:', version );
            return;

        }

        const DEFAULT_PALETTE = [
            0x00000000, 0xffffffff, 0xffccffff, 0xff99ffff, 0xff66ffff, 0xff33ffff, 0xff00ffff, 0xffffccff,
            0xffccccff, 0xff99ccff, 0xff66ccff, 0xff33ccff, 0xff00ccff, 0xffff99ff, 0xffcc99ff, 0xff9999ff,
            0xff6699ff, 0xff3399ff, 0xff0099ff, 0xffff66ff, 0xffcc66ff, 0xff9966ff, 0xff6666ff, 0xff3366ff,
            0xff0066ff, 0xffff33ff, 0xffcc33ff, 0xff9933ff, 0xff6633ff, 0xff3333ff, 0xff0033ff, 0xffff00ff,
            0xffcc00ff, 0xff9900ff, 0xff6600ff, 0xff3300ff, 0xff0000ff, 0xffffffcc, 0xffccffcc, 0xff99ffcc,
            0xff66ffcc, 0xff33ffcc, 0xff00ffcc, 0xffffcccc, 0xffcccccc, 0xff99cccc, 0xff66cccc, 0xff33cccc,
            0xff00cccc, 0xffff99cc, 0xffcc99cc, 0xff9999cc, 0xff6699cc, 0xff3399cc, 0xff0099cc, 0xffff66cc,
            0xffcc66cc, 0xff9966cc, 0xff6666cc, 0xff3366cc, 0xff0066cc, 0xffff33cc, 0xffcc33cc, 0xff9933cc,
            0xff6633cc, 0xff3333cc, 0xff0033cc, 0xffff00cc, 0xffcc00cc, 0xff9900cc, 0xff6600cc, 0xff3300cc,
            0xff0000cc, 0xffffff99, 0xffccff99, 0xff99ff99, 0xff66ff99, 0xff33ff99, 0xff00ff99, 0xffffcc99,
            0xffcccc99, 0xff99cc99, 0xff66cc99, 0xff33cc99, 0xff00cc99, 0xffff9999, 0xffcc9999, 0xff999999,
            0xff669999, 0xff339999, 0xff009999, 0xffff6699, 0xffcc6699, 0xff996699, 0xff666699, 0xff336699,
            0xff006699, 0xffff3399, 0xffcc3399, 0xff993399, 0xff663399, 0xff333399, 0xff003399, 0xffff0099,
            0xffcc0099, 0xff990099, 0xff660099, 0xff330099, 0xff000099, 0xffffff66, 0xffccff66, 0xff99ff66,
            0xff66ff66, 0xff33ff66, 0xff00ff66, 0xffffcc66, 0xffcccc66, 0xff99cc66, 0xff66cc66, 0xff33cc66,
            0xff00cc66, 0xffff9966, 0xffcc9966, 0xff999966, 0xff669966, 0xff339966, 0xff009966, 0xffff6666,
            0xffcc6666, 0xff996666, 0xff666666, 0xff336666, 0xff006666, 0xffff3366, 0xffcc3366, 0xff993366,
            0xff663366, 0xff333366, 0xff003366, 0xffff0066, 0xffcc0066, 0xff990066, 0xff660066, 0xff330066,
            0xff000066, 0xffffff33, 0xffccff33, 0xff99ff33, 0xff66ff33, 0xff33ff33, 0xff00ff33, 0xffffcc33,
            0xffcccc33, 0xff99cc33, 0xff66cc33, 0xff33cc33, 0xff00cc33, 0xffff9933, 0xffcc9933, 0xff999933,
            0xff669933, 0xff339933, 0xff009933, 0xffff6633, 0xffcc6633, 0xff996633, 0xff666633, 0xff336633,
            0xff006633, 0xffff3333, 0xffcc3333, 0xff993333, 0xff663333, 0xff333333, 0xff003333, 0xffff0033,
            0xffcc0033, 0xff990033, 0xff660033, 0xff330033, 0xff000033, 0xffffff00, 0xffccff00, 0xff99ff00,
            0xff66ff00, 0xff33ff00, 0xff00ff00, 0xffffcc00, 0xffcccc00, 0xff99cc00, 0xff66cc00, 0xff33cc00,
            0xff00cc00, 0xffff9900, 0xffcc9900, 0xff999900, 0xff669900, 0xff339900, 0xff009900, 0xffff6600,
            0xffcc6600, 0xff996600, 0xff666600, 0xff336600, 0xff006600, 0xffff3300, 0xffcc3300, 0xff993300,
            0xff663300, 0xff333300, 0xff003300, 0xffff0000, 0xffcc0000, 0xff990000, 0xff660000, 0xff330000,
            0xff0000ee, 0xff0000dd, 0xff0000bb, 0xff0000aa, 0xff000088, 0xff000077, 0xff000055, 0xff000044,
            0xff000022, 0xff000011, 0xff00ee00, 0xff00dd00, 0xff00bb00, 0xff00aa00, 0xff008800, 0xff007700,
            0xff005500, 0xff004400, 0xff002200, 0xff001100, 0xffee0000, 0xffdd0000, 0xffbb0000, 0xffaa0000,
            0xff880000, 0xff770000, 0xff550000, 0xff440000, 0xff220000, 0xff110000, 0xffeeeeee, 0xffdddddd,
            0xffbbbbbb, 0xffaaaaaa, 0xff888888, 0xff777777, 0xff555555, 0xff444444, 0xff222222, 0xff111111
        ];

        let i = 8;

        let chunk;
        const chunks = [];

        while ( i < data.byteLength ) {

            let id = '';

            for ( let j = 0; j < 4; j ++ ) {

                id += String.fromCharCode( data.getUint8( i ++ ) );

            }

            const chunkSize = data.getUint32( i, true ); i += 4;
            i += 4; // childChunks

            if ( id === 'SIZE' ) {

                const x = data.getUint32( i, true ); i += 4;
                const y = data.getUint32( i, true ); i += 4;
                const z = data.getUint32( i, true ); i += 4;

                chunk = {
                    palette: DEFAULT_PALETTE,
                    size: { x: x, y: y, z: z },
                };

                chunks.push( chunk );

                i += chunkSize - ( 3 * 4 );

            } else if ( id === 'XYZI' ) {

                const numVoxels = data.getUint32( i, true ); i += 4;
                chunk.data = new Uint8Array( buffer, i, numVoxels * 4 );

                i += numVoxels * 4;

            } else if ( id === 'RGBA' ) {

                const palette = [ 0 ];

                for ( let j = 0; j < 256; j ++ ) {

                    palette[ j + 1 ] = data.getUint32( i, true ); i += 4;

                }

                chunk.palette = palette;

            } else {

                // console.log( id, chunkSize, childChunks );

                i += chunkSize;

            }

        }

        return chunks;

    }

VOXMesh

Class Code
class VOXMesh extends Mesh {

    /**
     * Constructs a new VOX mesh.
     *
     * @param {Object} chunk - A VOX chunk loaded via {@link VOXLoader}.
     */
    constructor( chunk ) {

        const data = chunk.data;
        const size = chunk.size;
        const palette = chunk.palette;

        //

        const vertices = [];
        const colors = [];

        const nx = [ 0, 0, 0, 0, 0, 1, 0, 1, 0, 0, 1, 1, 0, 1, 0, 0, 0, 1 ];
        const px = [ 1, 0, 0, 1, 1, 0, 1, 0, 1, 1, 1, 1, 1, 0, 1, 1, 1, 0 ];
        const py = [ 0, 0, 1, 1, 0, 1, 0, 1, 1, 1, 1, 1, 0, 1, 1, 1, 0, 1 ];
        const ny = [ 0, 0, 0, 0, 1, 0, 1, 0, 0, 1, 1, 0, 1, 0, 0, 0, 1, 0 ];
        const nz = [ 0, 0, 1, 0, 0, 0, 1, 0, 1, 1, 0, 0, 1, 0, 1, 0, 0, 0 ];
        const pz = [ 0, 1, 1, 1, 1, 1, 0, 1, 0, 1, 1, 0, 0, 1, 0, 1, 1, 1 ];

        const _color = new Color();

        function add( tile, x, y, z, r, g, b ) {

            x -= size.x / 2;
            y -= size.z / 2;
            z += size.y / 2;

            for ( let i = 0; i < 18; i += 3 ) {

                _color.setRGB( r, g, b, SRGBColorSpace );

                vertices.push( tile[ i + 0 ] + x, tile[ i + 1 ] + y, tile[ i + 2 ] + z );
                colors.push( _color.r, _color.g, _color.b );

            }

        }

        // Store data in a volume for sampling

        const offsety = size.x;
        const offsetz = size.x * size.y;

        const array = new Uint8Array( size.x * size.y * size.z );

        for ( let j = 0; j < data.length; j += 4 ) {

            const x = data[ j + 0 ];
            const y = data[ j + 1 ];
            const z = data[ j + 2 ];

            const index = x + ( y * offsety ) + ( z * offsetz );

            array[ index ] = 255;

        }

        // Construct geometry

        let hasColors = false;

        for ( let j = 0; j < data.length; j += 4 ) {

            const x = data[ j + 0 ];
            const y = data[ j + 1 ];
            const z = data[ j + 2 ];
            const c = data[ j + 3 ];

            const hex = palette[ c ];
            const r = ( hex >> 0 & 0xff ) / 0xff;
            const g = ( hex >> 8 & 0xff ) / 0xff;
            const b = ( hex >> 16 & 0xff ) / 0xff;

            if ( r > 0 || g > 0 || b > 0 ) hasColors = true;

            const index = x + ( y * offsety ) + ( z * offsetz );

            if ( array[ index + 1 ] === 0 || x === size.x - 1 ) add( px, x, z, - y, r, g, b );
            if ( array[ index - 1 ] === 0 || x === 0 ) add( nx, x, z, - y, r, g, b );
            if ( array[ index + offsety ] === 0 || y === size.y - 1 ) add( ny, x, z, - y, r, g, b );
            if ( array[ index - offsety ] === 0 || y === 0 ) add( py, x, z, - y, r, g, b );
            if ( array[ index + offsetz ] === 0 || z === size.z - 1 ) add( pz, x, z, - y, r, g, b );
            if ( array[ index - offsetz ] === 0 || z === 0 ) add( nz, x, z, - y, r, g, b );

        }

        const geometry = new BufferGeometry();
        geometry.setAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
        geometry.computeVertexNormals();

        const material = new MeshStandardMaterial();

        if ( hasColors ) {

            geometry.setAttribute( 'color', new Float32BufferAttribute( colors, 3 ) );
            material.vertexColors = true;

        }

        super( geometry, material );

    }

}

VOXData3DTexture

Class Code
class VOXData3DTexture extends Data3DTexture {

    /**
     * Constructs a new VOX 3D texture.
     *
     * @param {Object} chunk - A VOX chunk loaded via {@link VOXLoader}.
     */
    constructor( chunk ) {

        const data = chunk.data;
        const size = chunk.size;

        const offsety = size.x;
        const offsetz = size.x * size.y;

        const array = new Uint8Array( size.x * size.y * size.z );

        for ( let j = 0; j < data.length; j += 4 ) {

            const x = data[ j + 0 ];
            const y = data[ j + 1 ];
            const z = data[ j + 2 ];

            const index = x + ( y * offsety ) + ( z * offsetz );

            array[ index ] = 255;

        }

        super( array, size.x, size.y, size.z );

        this.format = RedFormat;
        this.minFilter = NearestFilter;
        this.magFilter = LinearFilter;
        this.unpackAlignment = 1;
        this.needsUpdate = true;

    }

}