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| import { | |
| BufferGeometry, | |
| Color, | |
| Data3DTexture, | |
| FileLoader, | |
| Float32BufferAttribute, | |
| Loader, | |
| LinearFilter, | |
| Mesh, | |
| MeshStandardMaterial, | |
| NearestFilter, | |
| RedFormat, | |
| SRGBColorSpace | |
| } from 'three'; | |
| class VOXLoader extends Loader { | |
| 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 ) { | |
| 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; | |
| } | |
| } | |
| class VOXMesh extends Mesh { | |
| 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 ); | |
| } | |
| } | |
| class VOXData3DTexture extends Data3DTexture { | |
| 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; | |
| } | |
| } | |
| export { VOXLoader, VOXMesh, VOXData3DTexture }; | |