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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
<script src="three.js"></script>
<style>
body{
background-color: black;
}
</style>
<script>
/**
* @author mrdoob / http://mrdoob.com/
* @author Mugen87 / https://github.com/Mugen87
*/
THREE.ColladaLoader = function ( manager ) {
this.manager = ( manager !== undefined ) ? manager : THREE.DefaultLoadingManager;
};
THREE.ColladaLoader.prototype = {
constructor: THREE.ColladaLoader,
crossOrigin: 'anonymous',
load: function ( url, onLoad, onProgress, onError ) {
var scope = this;
var path = ( scope.path === undefined ) ? THREE.LoaderUtils.extractUrlBase( url ) : scope.path;
var loader = new THREE.FileLoader( scope.manager );
loader.setPath( scope.path );
loader.load( url, function ( text ) {
onLoad( scope.parse( text, path ) );
}, onProgress, onError );
},
setPath: function ( value ) {
this.path = value;
return this;
},
setResourcePath: function ( value ) {
this.resourcePath = value;
return this;
},
options: {
set convertUpAxis( value ) {
console.warn( 'THREE.ColladaLoader: options.convertUpAxis() has been removed. Up axis is converted automatically.' );
}
},
setCrossOrigin: function ( value ) {
this.crossOrigin = value;
return this;
},
parse: function ( text, path ) {
function getElementsByTagName( xml, name ) {
// Non recursive xml.getElementsByTagName() ...
var array = [];
var childNodes = xml.childNodes;
for ( var i = 0, l = childNodes.length; i < l; i ++ ) {
var child = childNodes[ i ];
if ( child.nodeName === name ) {
array.push( child );
}
}
return array;
}
function parseStrings( text ) {
if ( text.length === 0 ) return [];
var parts = text.trim().split( /\s+/ );
var array = new Array( parts.length );
for ( var i = 0, l = parts.length; i < l; i ++ ) {
array[ i ] = parts[ i ];
}
return array;
}
function parseFloats( text ) {
if ( text.length === 0 ) return [];
var parts = text.trim().split( /\s+/ );
var array = new Array( parts.length );
for ( var i = 0, l = parts.length; i < l; i ++ ) {
array[ i ] = parseFloat( parts[ i ] );
}
return array;
}
function parseInts( text ) {
if ( text.length === 0 ) return [];
var parts = text.trim().split( /\s+/ );
var array = new Array( parts.length );
for ( var i = 0, l = parts.length; i < l; i ++ ) {
array[ i ] = parseInt( parts[ i ] );
}
return array;
}
function parseId( text ) {
return text.substring( 1 );
}
function generateId() {
return 'three_default_' + ( count ++ );
}
function isEmpty( object ) {
return Object.keys( object ).length === 0;
}
// asset
function parseAsset( xml ) {
return {
unit: parseAssetUnit( getElementsByTagName( xml, 'unit' )[ 0 ] ),
upAxis: parseAssetUpAxis( getElementsByTagName( xml, 'up_axis' )[ 0 ] )
};
}
function parseAssetUnit( xml ) {
if ( ( xml !== undefined ) && ( xml.hasAttribute( 'meter' ) === true ) ) {
return parseFloat( xml.getAttribute( 'meter' ) );
} else {
return 1; // default 1 meter
}
}
function parseAssetUpAxis( xml ) {
return xml !== undefined ? xml.textContent : 'Y_UP';
}
// library
function parseLibrary( xml, libraryName, nodeName, parser ) {
var library = getElementsByTagName( xml, libraryName )[ 0 ];
if ( library !== undefined ) {
var elements = getElementsByTagName( library, nodeName );
for ( var i = 0; i < elements.length; i ++ ) {
parser( elements[ i ] );
}
}
}
function buildLibrary( data, builder ) {
for ( var name in data ) {
var object = data[ name ];
object.build = builder( data[ name ] );
}
}
// get
function getBuild( data, builder ) {
if ( data.build !== undefined ) return data.build;
data.build = builder( data );
return data.build;
}
// animation
function parseAnimation( xml ) {
var data = {
sources: {},
samplers: {},
channels: {}
};
for ( var i = 0, l = xml.childNodes.length; i < l; i ++ ) {
var child = xml.childNodes[ i ];
if ( child.nodeType !== 1 ) continue;
var id;
switch ( child.nodeName ) {
case 'source':
id = child.getAttribute( 'id' );
data.sources[ id ] = parseSource( child );
break;
case 'sampler':
id = child.getAttribute( 'id' );
data.samplers[ id ] = parseAnimationSampler( child );
break;
case 'channel':
id = child.getAttribute( 'target' );
data.channels[ id ] = parseAnimationChannel( child );
break;
default:
console.log( child );
}
}
library.animations[ xml.getAttribute( 'id' ) ] = data;
}
function parseAnimationSampler( xml ) {
var data = {
inputs: {},
};
for ( var i = 0, l = xml.childNodes.length; i < l; i ++ ) {
var child = xml.childNodes[ i ];
if ( child.nodeType !== 1 ) continue;
switch ( child.nodeName ) {
case 'input':
var id = parseId( child.getAttribute( 'source' ) );
var semantic = child.getAttribute( 'semantic' );
data.inputs[ semantic ] = id;
break;
}
}
return data;
}
function parseAnimationChannel( xml ) {
var data = {};
var target = xml.getAttribute( 'target' );
// parsing SID Addressing Syntax
var parts = target.split( '/' );
var id = parts.shift();
var sid = parts.shift();
// check selection syntax
var arraySyntax = ( sid.indexOf( '(' ) !== - 1 );
var memberSyntax = ( sid.indexOf( '.' ) !== - 1 );
if ( memberSyntax ) {
// member selection access
parts = sid.split( '.' );
sid = parts.shift();
data.member = parts.shift();
} else if ( arraySyntax ) {
// array-access syntax. can be used to express fields in one-dimensional vectors or two-dimensional matrices.
var indices = sid.split( '(' );
sid = indices.shift();
for ( var i = 0; i < indices.length; i ++ ) {
indices[ i ] = parseInt( indices[ i ].replace( /\)/, '' ) );
}
data.indices = indices;
}
data.id = id;
data.sid = sid;
data.arraySyntax = arraySyntax;
data.memberSyntax = memberSyntax;
data.sampler = parseId( xml.getAttribute( 'source' ) );
return data;
}
function buildAnimation( data ) {
var tracks = [];
var channels = data.channels;
var samplers = data.samplers;
var sources = data.sources;
for ( var target in channels ) {
if ( channels.hasOwnProperty( target ) ) {
var channel = channels[ target ];
var sampler = samplers[ channel.sampler ];
var inputId = sampler.inputs.INPUT;
var outputId = sampler.inputs.OUTPUT;
var inputSource = sources[ inputId ];
var outputSource = sources[ outputId ];
var animation = buildAnimationChannel( channel, inputSource, outputSource );
createKeyframeTracks( animation, tracks );
}
}
return tracks;
}
function getAnimation( id ) {
return getBuild( library.animations[ id ], buildAnimation );
}
function buildAnimationChannel( channel, inputSource, outputSource ) {
var node = library.nodes[ channel.id ];
var object3D = getNode( node.id );
var transform = node.transforms[ channel.sid ];
var defaultMatrix = node.matrix.clone().transpose();
var time, stride;
var i, il, j, jl;
var data = {};
// the collada spec allows the animation of data in various ways.
// depending on the transform type (matrix, translate, rotate, scale), we execute different logic
switch ( transform ) {
case 'matrix':
for ( i = 0, il = inputSource.array.length; i < il; i ++ ) {
time = inputSource.array[ i ];
stride = i * outputSource.stride;
if ( data[ time ] === undefined ) data[ time ] = {};
if ( channel.arraySyntax === true ) {
var value = outputSource.array[ stride ];
var index = channel.indices[ 0 ] + 4 * channel.indices[ 1 ];
data[ time ][ index ] = value;
} else {
for ( j = 0, jl = outputSource.stride; j < jl; j ++ ) {
data[ time ][ j ] = outputSource.array[ stride + j ];
}
}
}
break;
case 'translate':
console.warn( 'THREE.ColladaLoader: Animation transform type "%s" not yet implemented.', transform );
break;
case 'rotate':
console.warn( 'THREE.ColladaLoader: Animation transform type "%s" not yet implemented.', transform );
break;
case 'scale':
console.warn( 'THREE.ColladaLoader: Animation transform type "%s" not yet implemented.', transform );
break;
}
var keyframes = prepareAnimationData( data, defaultMatrix );
var animation = {
name: object3D.uuid,
keyframes: keyframes
};
return animation;
}
function prepareAnimationData( data, defaultMatrix ) {
var keyframes = [];
// transfer data into a sortable array
for ( var time in data ) {
keyframes.push( { time: parseFloat( time ), value: data[ time ] } );
}
// ensure keyframes are sorted by time
keyframes.sort( ascending );
// now we clean up all animation data, so we can use them for keyframe tracks
for ( var i = 0; i < 16; i ++ ) {
transformAnimationData( keyframes, i, defaultMatrix.elements[ i ] );
}
return keyframes;
// array sort function
function ascending( a, b ) {
return a.time - b.time;
}
}
var position = new THREE.Vector3();
var scale = new THREE.Vector3();
var quaternion = new THREE.Quaternion();
function createKeyframeTracks( animation, tracks ) {
var keyframes = animation.keyframes;
var name = animation.name;
var times = [];
var positionData = [];
var quaternionData = [];
var scaleData = [];
for ( var i = 0, l = keyframes.length; i < l; i ++ ) {
var keyframe = keyframes[ i ];
var time = keyframe.time;
var value = keyframe.value;
matrix.fromArray( value ).transpose();
matrix.decompose( position, quaternion, scale );
times.push( time );
positionData.push( position.x, position.y, position.z );
quaternionData.push( quaternion.x, quaternion.y, quaternion.z, quaternion.w );
scaleData.push( scale.x, scale.y, scale.z );
}
if ( positionData.length > 0 ) tracks.push( new THREE.VectorKeyframeTrack( name + '.position', times, positionData ) );
if ( quaternionData.length > 0 ) tracks.push( new THREE.QuaternionKeyframeTrack( name + '.quaternion', times, quaternionData ) );
if ( scaleData.length > 0 ) tracks.push( new THREE.VectorKeyframeTrack( name + '.scale', times, scaleData ) );
return tracks;
}
function transformAnimationData( keyframes, property, defaultValue ) {
var keyframe;
var empty = true;
var i, l;
// check, if values of a property are missing in our keyframes
for ( i = 0, l = keyframes.length; i < l; i ++ ) {
keyframe = keyframes[ i ];
if ( keyframe.value[ property ] === undefined ) {
keyframe.value[ property ] = null; // mark as missing
} else {
empty = false;
}
}
if ( empty === true ) {
// no values at all, so we set a default value
for ( i = 0, l = keyframes.length; i < l; i ++ ) {
keyframe = keyframes[ i ];
keyframe.value[ property ] = defaultValue;
}
} else {
// filling gaps
createMissingKeyframes( keyframes, property );
}
}
function createMissingKeyframes( keyframes, property ) {
var prev, next;
for ( var i = 0, l = keyframes.length; i < l; i ++ ) {
var keyframe = keyframes[ i ];
if ( keyframe.value[ property ] === null ) {
prev = getPrev( keyframes, i, property );
next = getNext( keyframes, i, property );
if ( prev === null ) {
keyframe.value[ property ] = next.value[ property ];
continue;
}
if ( next === null ) {
keyframe.value[ property ] = prev.value[ property ];
continue;
}
interpolate( keyframe, prev, next, property );
}
}
}
function getPrev( keyframes, i, property ) {
while ( i >= 0 ) {
var keyframe = keyframes[ i ];
if ( keyframe.value[ property ] !== null ) return keyframe;
i --;
}
return null;
}
function getNext( keyframes, i, property ) {
while ( i < keyframes.length ) {
var keyframe = keyframes[ i ];
if ( keyframe.value[ property ] !== null ) return keyframe;
i ++;
}
return null;
}
function interpolate( key, prev, next, property ) {
if ( ( next.time - prev.time ) === 0 ) {
key.value[ property ] = prev.value[ property ];
return;
}
key.value[ property ] = ( ( key.time - prev.time ) * ( next.value[ property ] - prev.value[ property ] ) / ( next.time - prev.time ) ) + prev.value[ property ];
}
// animation clips
function parseAnimationClip( xml ) {
var data = {
name: xml.getAttribute( 'id' ) || 'default',
start: parseFloat( xml.getAttribute( 'start' ) || 0 ),
end: parseFloat( xml.getAttribute( 'end' ) || 0 ),
animations: []
};
for ( var i = 0, l = xml.childNodes.length; i < l; i ++ ) {
var child = xml.childNodes[ i ];
if ( child.nodeType !== 1 ) continue;
switch ( child.nodeName ) {
case 'instance_animation':
data.animations.push( parseId( child.getAttribute( 'url' ) ) );
break;
}
}
library.clips[ xml.getAttribute( 'id' ) ] = data;
}
function buildAnimationClip( data ) {
var tracks = [];
var name = data.name;
var duration = ( data.end - data.start ) || - 1;
var animations = data.animations;
for ( var i = 0, il = animations.length; i < il; i ++ ) {
var animationTracks = getAnimation( animations[ i ] );
for ( var j = 0, jl = animationTracks.length; j < jl; j ++ ) {
tracks.push( animationTracks[ j ] );
}
}
return new THREE.AnimationClip( name, duration, tracks );
}
function getAnimationClip( id ) {
return getBuild( library.clips[ id ], buildAnimationClip );
}
// controller
function parseController( xml ) {
var data = {};
for ( var i = 0, l = xml.childNodes.length; i < l; i ++ ) {
var child = xml.childNodes[ i ];
if ( child.nodeType !== 1 ) continue;
switch ( child.nodeName ) {
case 'skin':
// there is exactly one skin per controller
data.id = parseId( child.getAttribute( 'source' ) );
data.skin = parseSkin( child );
break;
case 'morph':
data.id = parseId( child.getAttribute( 'source' ) );
console.warn( 'THREE.ColladaLoader: Morph target animation not supported yet.' );
break;
}
}
library.controllers[ xml.getAttribute( 'id' ) ] = data;
}
function parseSkin( xml ) {
var data = {
sources: {}
};
for ( var i = 0, l = xml.childNodes.length; i < l; i ++ ) {
var child = xml.childNodes[ i ];
if ( child.nodeType !== 1 ) continue;
switch ( child.nodeName ) {
case 'bind_shape_matrix':
data.bindShapeMatrix = parseFloats( child.textContent );
break;
case 'source':
var id = child.getAttribute( 'id' );
data.sources[ id ] = parseSource( child );
break;
case 'joints':
data.joints = parseJoints( child );
break;
case 'vertex_weights':
data.vertexWeights = parseVertexWeights( child );
break;
}
}
return data;
}
function parseJoints( xml ) {
var data = {
inputs: {}
};
for ( var i = 0, l = xml.childNodes.length; i < l; i ++ ) {
var child = xml.childNodes[ i ];
if ( child.nodeType !== 1 ) continue;
switch ( child.nodeName ) {
case 'input':
var semantic = child.getAttribute( 'semantic' );
var id = parseId( child.getAttribute( 'source' ) );
data.inputs[ semantic ] = id;
break;
}
}
return data;
}
function parseVertexWeights( xml ) {
var data = {
inputs: {}
};
for ( var i = 0, l = xml.childNodes.length; i < l; i ++ ) {
var child = xml.childNodes[ i ];
if ( child.nodeType !== 1 ) continue;
switch ( child.nodeName ) {
case 'input':
var semantic = child.getAttribute( 'semantic' );
var id = parseId( child.getAttribute( 'source' ) );
var offset = parseInt( child.getAttribute( 'offset' ) );
data.inputs[ semantic ] = { id: id, offset: offset };
break;
case 'vcount':
data.vcount = parseInts( child.textContent );
break;
case 'v':
data.v = parseInts( child.textContent );
break;
}
}
return data;
}
function buildController( data ) {
var build = {
id: data.id
};
var geometry = library.geometries[ build.id ];
if ( data.skin !== undefined ) {
build.skin = buildSkin( data.skin );
// we enhance the 'sources' property of the corresponding geometry with our skin data
geometry.sources.skinIndices = build.skin.indices;
geometry.sources.skinWeights = build.skin.weights;
}
return build;
}
function buildSkin( data ) {
var BONE_LIMIT = 4;
var build = {
joints: [], // this must be an array to preserve the joint order
indices: {
array: [],
stride: BONE_LIMIT
},
weights: {
array: [],
stride: BONE_LIMIT
}
};
var sources = data.sources;
var vertexWeights = data.vertexWeights;
var vcount = vertexWeights.vcount;
var v = vertexWeights.v;
var jointOffset = vertexWeights.inputs.JOINT.offset;
var weightOffset = vertexWeights.inputs.WEIGHT.offset;
var jointSource = data.sources[ data.joints.inputs.JOINT ];
var inverseSource = data.sources[ data.joints.inputs.INV_BIND_MATRIX ];
var weights = sources[ vertexWeights.inputs.WEIGHT.id ].array;
var stride = 0;
var i, j, l;
// procces skin data for each vertex
for ( i = 0, l = vcount.length; i < l; i ++ ) {
var jointCount = vcount[ i ]; // this is the amount of joints that affect a single vertex
var vertexSkinData = [];
for ( j = 0; j < jointCount; j ++ ) {
var skinIndex = v[ stride + jointOffset ];
var weightId = v[ stride + weightOffset ];
var skinWeight = weights[ weightId ];
vertexSkinData.push( { index: skinIndex, weight: skinWeight } );
stride += 2;
}
// we sort the joints in descending order based on the weights.
// this ensures, we only procced the most important joints of the vertex
vertexSkinData.sort( descending );
// now we provide for each vertex a set of four index and weight values.
// the order of the skin data matches the order of vertices
for ( j = 0; j < BONE_LIMIT; j ++ ) {
var d = vertexSkinData[ j ];
if ( d !== undefined ) {
build.indices.array.push( d.index );
build.weights.array.push( d.weight );
} else {
build.indices.array.push( 0 );
build.weights.array.push( 0 );
}
}
}
// setup bind matrix
if ( data.bindShapeMatrix ) {
build.bindMatrix = new THREE.Matrix4().fromArray( data.bindShapeMatrix ).transpose();
} else {
build.bindMatrix = new THREE.Matrix4().identity();
}