/**
* @author mrdoob / http://mrdoob.com/
*/
THREE.MD2Loader = function ( manager ) {
this.manager = ( manager !== undefined ) ? manager : THREE.DefaultLoadingManager;
};
THREE.MD2Loader.prototype = {
constructor: THREE.MD2Loader,
load: function ( url, onLoad, onProgress, onError ) {
var scope = this;
var loader = new THREE.FileLoader( scope.manager );
loader.setResponseType( 'arraybuffer' );
loader.load( url, function ( buffer ) {
onLoad( scope.parse( buffer ) );
}, onProgress, onError );
},
parse: ( function () {
var normals = [
[ -0.525731, 0.000000, 0.850651 ], [ -0.442863, 0.238856, 0.864188 ],
[ -0.295242, 0.000000, 0.955423 ], [ -0.309017, 0.500000, 0.809017 ],
[ -0.162460, 0.262866, 0.951056 ], [ 0.000000, 0.000000, 1.000000 ],
[ 0.000000, 0.850651, 0.525731 ], [ -0.147621, 0.716567, 0.681718 ],
[ 0.147621, 0.716567, 0.681718 ], [ 0.000000, 0.525731, 0.850651 ],
[ 0.309017, 0.500000, 0.809017 ], [ 0.525731, 0.000000, 0.850651 ],
[ 0.295242, 0.000000, 0.955423 ], [ 0.442863, 0.238856, 0.864188 ],
[ 0.162460, 0.262866, 0.951056 ], [ -0.681718, 0.147621, 0.716567 ],
[ -0.809017, 0.309017, 0.500000 ], [ -0.587785, 0.425325, 0.688191 ],
[ -0.850651, 0.525731, 0.000000 ], [ -0.864188, 0.442863, 0.238856 ],
[ -0.716567, 0.681718, 0.147621 ], [ -0.688191, 0.587785, 0.425325 ],
[ -0.500000, 0.809017, 0.309017 ], [ -0.238856, 0.864188, 0.442863 ],
[ -0.425325, 0.688191, 0.587785 ], [ -0.716567, 0.681718, -0.147621 ],
[ -0.500000, 0.809017, -0.309017 ], [ -0.525731, 0.850651, 0.000000 ],
[ 0.000000, 0.850651, -0.525731 ], [ -0.238856, 0.864188, -0.442863 ],
[ 0.000000, 0.955423, -0.295242 ], [ -0.262866, 0.951056, -0.162460 ],
[ 0.000000, 1.000000, 0.000000 ], [ 0.000000, 0.955423, 0.295242 ],
[ -0.262866, 0.951056, 0.162460 ], [ 0.238856, 0.864188, 0.442863 ],
[ 0.262866, 0.951056, 0.162460 ], [ 0.500000, 0.809017, 0.309017 ],
[ 0.238856, 0.864188, -0.442863 ], [ 0.262866, 0.951056, -0.162460 ],
[ 0.500000, 0.809017, -0.309017 ], [ 0.850651, 0.525731, 0.000000 ],
[ 0.716567, 0.681718, 0.147621 ], [ 0.716567, 0.681718, -0.147621 ],
[ 0.525731, 0.850651, 0.000000 ], [ 0.425325, 0.688191, 0.587785 ],
[ 0.864188, 0.442863, 0.238856 ], [ 0.688191, 0.587785, 0.425325 ],
[ 0.809017, 0.309017, 0.500000 ], [ 0.681718, 0.147621, 0.716567 ],
[ 0.587785, 0.425325, 0.688191 ], [ 0.955423, 0.295242, 0.000000 ],
[ 1.000000, 0.000000, 0.000000 ], [ 0.951056, 0.162460, 0.262866 ],
[ 0.850651, -0.525731, 0.000000 ], [ 0.955423, -0.295242, 0.000000 ],
[ 0.864188, -0.442863, 0.238856 ], [ 0.951056, -0.162460, 0.262866 ],
[ 0.809017, -0.309017, 0.500000 ], [ 0.681718, -0.147621, 0.716567 ],
[ 0.850651, 0.000000, 0.525731 ], [ 0.864188, 0.442863, -0.238856 ],
[ 0.809017, 0.309017, -0.500000 ], [ 0.951056, 0.162460, -0.262866 ],
[ 0.525731, 0.000000, -0.850651 ], [ 0.681718, 0.147621, -0.716567 ],
[ 0.681718, -0.147621, -0.716567 ], [ 0.850651, 0.000000, -0.525731 ],
[ 0.809017, -0.309017, -0.500000 ], [ 0.864188, -0.442863, -0.238856 ],
[ 0.951056, -0.162460, -0.262866 ], [ 0.147621, 0.716567, -0.681718 ],
[ 0.309017, 0.500000, -0.809017 ], [ 0.425325, 0.688191, -0.587785 ],
[ 0.442863, 0.238856, -0.864188 ], [ 0.587785, 0.425325, -0.688191 ],
[ 0.688191, 0.587785, -0.425325 ], [ -0.147621, 0.716567, -0.681718 ],
[ -0.309017, 0.500000, -0.809017 ], [ 0.000000, 0.525731, -0.850651 ],
[ -0.525731, 0.000000, -0.850651 ], [ -0.442863, 0.238856, -0.864188 ],
[ -0.295242, 0.000000, -0.955423 ], [ -0.162460, 0.262866, -0.951056 ],
[ 0.000000, 0.000000, -1.000000 ], [ 0.295242, 0.000000, -0.955423 ],
[ 0.162460, 0.262866, -0.951056 ], [ -0.442863, -0.238856, -0.864188 ],
[ -0.309017, -0.500000, -0.809017 ], [ -0.162460, -0.262866, -0.951056 ],
[ 0.000000, -0.850651, -0.525731 ], [ -0.147621, -0.716567, -0.681718 ],
[ 0.147621, -0.716567, -0.681718 ], [ 0.000000, -0.525731, -0.850651 ],
[ 0.309017, -0.500000, -0.809017 ], [ 0.442863, -0.238856, -0.864188 ],
[ 0.162460, -0.262866, -0.951056 ], [ 0.238856, -0.864188, -0.442863 ],
[ 0.500000, -0.809017, -0.309017 ], [ 0.425325, -0.688191, -0.587785 ],
[ 0.716567, -0.681718, -0.147621 ], [ 0.688191, -0.587785, -0.425325 ],
[ 0.587785, -0.425325, -0.688191 ], [ 0.000000, -0.955423, -0.295242 ],
[ 0.000000, -1.000000, 0.000000 ], [ 0.262866, -0.951056, -0.162460 ],
[ 0.000000, -0.850651, 0.525731 ], [ 0.000000, -0.955423, 0.295242 ],
[ 0.238856, -0.864188, 0.442863 ], [ 0.262866, -0.951056, 0.162460 ],
[ 0.500000, -0.809017, 0.309017 ], [ 0.716567, -0.681718, 0.147621 ],
[ 0.525731, -0.850651, 0.000000 ], [ -0.238856, -0.864188, -0.442863 ],
[ -0.500000, -0.809017, -0.309017 ], [ -0.262866, -0.951056, -0.162460 ],
[ -0.850651, -0.525731, 0.000000 ], [ -0.716567, -0.681718, -0.147621 ],
[ -0.716567, -0.681718, 0.147621 ], [ -0.525731, -0.850651, 0.000000 ],
[ -0.500000, -0.809017, 0.309017 ], [ -0.238856, -0.864188, 0.442863 ],
[ -0.262866, -0.951056, 0.162460 ], [ -0.864188, -0.442863, 0.238856 ],
[ -0.809017, -0.309017, 0.500000 ], [ -0.688191, -0.587785, 0.425325 ],
[ -0.681718, -0.147621, 0.716567 ], [ -0.442863, -0.238856, 0.864188 ],
[ -0.587785, -0.425325, 0.688191 ], [ -0.309017, -0.500000, 0.809017 ],
[ -0.147621, -0.716567, 0.681718 ], [ -0.425325, -0.688191, 0.587785 ],
[ -0.162460, -0.262866, 0.951056 ], [ 0.442863, -0.238856, 0.864188 ],
[ 0.162460, -0.262866, 0.951056 ], [ 0.309017, -0.500000, 0.809017 ],
[ 0.147621, -0.716567, 0.681718 ], [ 0.000000, -0.525731, 0.850651 ],
[ 0.425325, -0.688191, 0.587785 ], [ 0.587785, -0.425325, 0.688191 ],
[ 0.688191, -0.587785, 0.425325 ], [ -0.955423, 0.295242, 0.000000 ],
[ -0.951056, 0.162460, 0.262866 ], [ -1.000000, 0.000000, 0.000000 ],
[ -0.850651, 0.000000, 0.525731 ], [ -0.955423, -0.295242, 0.000000 ],
[ -0.951056, -0.162460, 0.262866 ], [ -0.864188, 0.442863, -0.238856 ],
[ -0.951056, 0.162460, -0.262866 ], [ -0.809017, 0.309017, -0.500000 ],
[ -0.864188, -0.442863, -0.238856 ], [ -0.951056, -0.162460, -0.262866 ],
[ -0.809017, -0.309017, -0.500000 ], [ -0.681718, 0.147621, -0.716567 ],
[ -0.681718, -0.147621, -0.716567 ], [ -0.850651, 0.000000, -0.525731 ],
[ -0.688191, 0.587785, -0.425325 ], [ -0.587785, 0.425325, -0.688191 ],
[ -0.425325, 0.688191, -0.587785 ], [ -0.425325, -0.688191, -0.587785 ],
[ -0.587785, -0.425325, -0.688191 ], [ -0.688191, -0.587785, -0.425325 ]
];
return function ( buffer ) {
console.time( 'MD2Loader' );
var data = new DataView( buffer );
// http://tfc.duke.free.fr/coding/md2-specs-en.html
var header = {};
var headerNames = [
'ident', 'version',
'skinwidth', 'skinheight',
'framesize',
'num_skins', 'num_vertices', 'num_st', 'num_tris', 'num_glcmds', 'num_frames',
'offset_skins', 'offset_st', 'offset_tris', 'offset_frames', 'offset_glcmds', 'offset_end'
];
for ( var i = 0; i < headerNames.length; i ++ ) {
header[ headerNames[ i ] ] = data.getInt32( i * 4, true );
}
if ( header.ident !== 844121161 || header.version !== 8 ) {
console.error( 'Not a valid MD2 file' );
return;
}
if ( header.offset_end !== data.byteLength ) {
console.error( 'Corrupted MD2 file' );
return;
}
//
var geometry = new THREE.Geometry();
// uvs
var uvs = [];
var offset = header.offset_st;
for ( var i = 0, l = header.num_st; i < l; i ++ ) {
var u = data.getInt16( offset + 0, true );
var v = data.getInt16( offset + 2, true );
uvs.push( new THREE.Vector2( u / header.skinwidth, 1 - ( v / header.skinheight ) ) );
offset += 4;
}
// triangles
var offset = header.offset_tris;
for ( var i = 0, l = header.num_tris; i < l; i ++ ) {
var a = data.getUint16( offset + 0, true );
var b = data.getUint16( offset + 2, true );
var c = data.getUint16( offset + 4, true );
geometry.faces.push( new THREE.Face3( a, b, c ) );
geometry.faceVertexUvs[ 0 ].push( [
uvs[ data.getUint16( offset + 6, true ) ],
uvs[ data.getUint16( offset + 8, true ) ],
uvs[ data.getUint16( offset + 10, true ) ]
] );
offset += 12;
}
// frames
var translation = new THREE.Vector3();
var scale = new THREE.Vector3();
var string = [];
var offset = header.offset_frames;
for ( var i = 0, l = header.num_frames; i < l; i ++ ) {
scale.set(
data.getFloat32( offset + 0, true ),
data.getFloat32( offset + 4, true ),
data.getFloat32( offset + 8, true )
);
translation.set(
data.getFloat32( offset + 12, true ),
data.getFloat32( offset + 16, true ),
data.getFloat32( offset + 20, true )
);
offset += 24;
for ( var j = 0; j < 16; j ++ ) {
var character = data.getUint8( offset + j, true );
if ( character === 0 ) break;
string[ j ] = character;
}
var frame = {
name: String.fromCharCode.apply( null, string ),
vertices: [],
normals: []
};
offset += 16;
for ( var j = 0; j < header.num_vertices; j ++ ) {
var x = data.getUint8( offset ++, true );
var y = data.getUint8( offset ++, true );
var z = data.getUint8( offset ++, true );
var n = normals[ data.getUint8( offset ++, true ) ];
var vertex = new THREE.Vector3(
x * scale.x + translation.x,
z * scale.z + translation.z,
y * scale.y + translation.y
);
var normal = new THREE.Vector3( n[ 0 ], n[ 2 ], n[ 1 ] );
frame.vertices.push( vertex );
frame.normals.push( normal );
}
geometry.morphTargets.push( frame );
}
// Static
geometry.vertices = geometry.morphTargets[ 0 ].vertices;
var morphTarget = geometry.morphTargets[ 0 ];
for ( var j = 0, jl = geometry.faces.length; j < jl; j ++ ) {
var face = geometry.faces[ j ];
face.vertexNormals = [
morphTarget.normals[ face.a ],
morphTarget.normals[ face.b ],
morphTarget.normals[ face.c ]
];
}
// Convert to geometry.morphNormals
for ( var i = 0, l = geometry.morphTargets.length; i < l; i ++ ) {
var morphTarget = geometry.morphTargets[ i ];
var vertexNormals = [];
for ( var j = 0, jl = geometry.faces.length; j < jl; j ++ ) {
var face = geometry.faces[ j ];
vertexNormals.push( {
a: morphTarget.normals[ face.a ],
b: morphTarget.normals[ face.b ],
c: morphTarget.normals[ face.c ]
} );
}
geometry.morphNormals.push( { vertexNormals: vertexNormals } );
}
geometry.animations = THREE.AnimationClip.CreateClipsFromMorphTargetSequences( geometry.morphTargets, 10 );
console.timeEnd( 'MD2Loader' );
return geometry;
};
} )()
};
