Updated builds.

build/three.js

@@ -1234,6 +1234,12 @@ THREE.Vector4.prototype = {
 		return Math.sqrt( this.lengthSq() );
 
 	},
+	
+	lengthManhattan: function () {
+
+		return Math.abs( this.x ) + Math.abs( this.y ) + Math.abs( this.z ) + Math.abs( this.w );
+
+	},
 
 	normalize: function () {
 
@@ -10884,11 +10890,27 @@ THREE.SkinnedMesh.prototype.updateMatrixWorld = function ( force ) {
 THREE.SkinnedMesh.prototype.pose = function() {
 
 	this.updateMatrixWorld( true );
-	
-	// TODO: decide if we need to normalize weights here; for now it's
-	//  done automatically by shader (as a byproduct of using vec4 arithmetic)
+		
+	for ( var i = 0; i < this.geometry.skinIndices.length; i ++ ) {
 
+		// normalize weights
+
+		var sw = this.geometry.skinWeights[ i ];
+		
+		var scale = 1.0 / sw.lengthManhattan();
+		
+		if ( scale != Infinity ) {
+		
+			sw.multiplyScalar( scale );
+			
+		} else {
+		
+			sw.set( 1 ); // this will be normalized by the shader anyway
+			
+		}
+	}
 };
+
 /**
  * @author alteredq / http://alteredqualia.com/
  */

build/three.min.js

@@ -25,9 +25,9 @@ a.y),g-d+f-e);this.y=Math.atan2(2*(a.y*a.w-a.x*a.z),g+d-f-e);this.z=Math.asin(c(
 b;this.y=c;this.z=a;return this},equals:function(a){return a.x===this.x&&a.y===this.y&&a.z===this.z},isZero:function(){return this.lengthSq()<1E-4},clone:function(){return new THREE.Vector3(this.x,this.y,this.z)}};THREE.Vector4=function(a,b,c,d){this.x=a||0;this.y=b||0;this.z=c||0;this.w=d!==void 0?d:1};
 THREE.Vector4.prototype={constructor:THREE.Vector4,set:function(a,b,c,d){this.x=a;this.y=b;this.z=c;this.w=d;return this},copy:function(a){this.x=a.x;this.y=a.y;this.z=a.z;this.w=a.w!==void 0?a.w:1;return this},add:function(a,b){this.x=a.x+b.x;this.y=a.y+b.y;this.z=a.z+b.z;this.w=a.w+b.w;return this},addSelf:function(a){this.x=this.x+a.x;this.y=this.y+a.y;this.z=this.z+a.z;this.w=this.w+a.w;return this},sub:function(a,b){this.x=a.x-b.x;this.y=a.y-b.y;this.z=a.z-b.z;this.w=a.w-b.w;return this},subSelf:function(a){this.x=
 this.x-a.x;this.y=this.y-a.y;this.z=this.z-a.z;this.w=this.w-a.w;return this},multiplyScalar:function(a){this.x=this.x*a;this.y=this.y*a;this.z=this.z*a;this.w=this.w*a;return this},divideScalar:function(a){if(a){this.x=this.x/a;this.y=this.y/a;this.z=this.z/a;this.w=this.w/a}else{this.z=this.y=this.x=0;this.w=1}return this},negate:function(){return this.multiplyScalar(-1)},dot:function(a){return this.x*a.x+this.y*a.y+this.z*a.z+this.w*a.w},lengthSq:function(){return this.dot(this)},length:function(){return Math.sqrt(this.lengthSq())},
-normalize:function(){return this.divideScalar(this.length())},setLength:function(a){return this.normalize().multiplyScalar(a)},lerpSelf:function(a,b){this.x=this.x+(a.x-this.x)*b;this.y=this.y+(a.y-this.y)*b;this.z=this.z+(a.z-this.z)*b;this.w=this.w+(a.w-this.w)*b;return this},clone:function(){return new THREE.Vector4(this.x,this.y,this.z,this.w)},setAxisAngleFromQuaternion:function(a){this.w=2*Math.acos(a.w);var b=Math.sqrt(1-a.w*a.w);if(b<1E-4){this.x=1;this.z=this.y=0}else{this.x=a.x/b;this.y=
-a.y/b;this.z=a.z/b}return this},setAxisAngleFromRotationMatrix:function(a){var b,c,d,a=a.elements,f=a[0];d=a[4];var e=a[8],g=a[1],h=a[5],i=a[9];c=a[2];b=a[6];var k=a[10];if(Math.abs(d-g)<0.01&&Math.abs(e-c)<0.01&&Math.abs(i-b)<0.01){if(Math.abs(d+g)<0.1&&Math.abs(e+c)<0.1&&Math.abs(i+b)<0.1&&Math.abs(f+h+k-3)<0.1){this.set(1,0,0,0);return this}a=Math.PI;f=(f+1)/2;h=(h+1)/2;k=(k+1)/2;d=(d+g)/4;e=(e+c)/4;i=(i+b)/4;if(f>h&&f>k)if(f<0.01){b=0;d=c=0.707106781}else{b=Math.sqrt(f);c=d/b;d=e/b}else if(h>
-k)if(h<0.01){b=0.707106781;c=0;d=0.707106781}else{c=Math.sqrt(h);b=d/c;d=i/c}else if(k<0.01){c=b=0.707106781;d=0}else{d=Math.sqrt(k);b=e/d;c=i/d}this.set(b,c,d,a);return this}a=Math.sqrt((b-i)*(b-i)+(e-c)*(e-c)+(g-d)*(g-d));Math.abs(a)<0.001&&(a=1);this.x=(b-i)/a;this.y=(e-c)/a;this.z=(g-d)/a;this.w=Math.acos((f+h+k-1)/2);return this}};
+lengthManhattan:function(){return Math.abs(this.x)+Math.abs(this.y)+Math.abs(this.z)+Math.abs(this.w)},normalize:function(){return this.divideScalar(this.length())},setLength:function(a){return this.normalize().multiplyScalar(a)},lerpSelf:function(a,b){this.x=this.x+(a.x-this.x)*b;this.y=this.y+(a.y-this.y)*b;this.z=this.z+(a.z-this.z)*b;this.w=this.w+(a.w-this.w)*b;return this},clone:function(){return new THREE.Vector4(this.x,this.y,this.z,this.w)},setAxisAngleFromQuaternion:function(a){this.w=2*
+Math.acos(a.w);var b=Math.sqrt(1-a.w*a.w);if(b<1E-4){this.x=1;this.z=this.y=0}else{this.x=a.x/b;this.y=a.y/b;this.z=a.z/b}return this},setAxisAngleFromRotationMatrix:function(a){var b,c,d,a=a.elements,f=a[0];d=a[4];var e=a[8],g=a[1],h=a[5],i=a[9];c=a[2];b=a[6];var k=a[10];if(Math.abs(d-g)<0.01&&Math.abs(e-c)<0.01&&Math.abs(i-b)<0.01){if(Math.abs(d+g)<0.1&&Math.abs(e+c)<0.1&&Math.abs(i+b)<0.1&&Math.abs(f+h+k-3)<0.1){this.set(1,0,0,0);return this}a=Math.PI;f=(f+1)/2;h=(h+1)/2;k=(k+1)/2;d=(d+g)/4;e=
+(e+c)/4;i=(i+b)/4;if(f>h&&f>k)if(f<0.01){b=0;d=c=0.707106781}else{b=Math.sqrt(f);c=d/b;d=e/b}else if(h>k)if(h<0.01){b=0.707106781;c=0;d=0.707106781}else{c=Math.sqrt(h);b=d/c;d=i/c}else if(k<0.01){c=b=0.707106781;d=0}else{d=Math.sqrt(k);b=e/d;c=i/d}this.set(b,c,d,a);return this}a=Math.sqrt((b-i)*(b-i)+(e-c)*(e-c)+(g-d)*(g-d));Math.abs(a)<0.001&&(a=1);this.x=(b-i)/a;this.y=(e-c)/a;this.z=(g-d)/a;this.w=Math.acos((f+h+k-1)/2);return this}};
 THREE.EventTarget=function(){var a={};this.addEventListener=function(b,c){a[b]===void 0&&(a[b]=[]);a[b].indexOf(c)===-1&&a[b].push(c)};this.dispatchEvent=function(b){for(var c in a[b.type])a[b.type][c](b)};this.removeEventListener=function(b,c){var d=a[b].indexOf(c);d!==-1&&a[b].splice(d,1)}};THREE.Frustum=function(){this.planes=[new THREE.Vector4,new THREE.Vector4,new THREE.Vector4,new THREE.Vector4,new THREE.Vector4,new THREE.Vector4]};
 THREE.Frustum.prototype.setFromMatrix=function(a){var b=this.planes,c=a.elements,a=c[0],d=c[1],f=c[2],e=c[3],g=c[4],h=c[5],i=c[6],k=c[7],j=c[8],o=c[9],m=c[10],q=c[11],p=c[12],n=c[13],r=c[14],c=c[15];b[0].set(e-a,k-g,q-j,c-p);b[1].set(e+a,k+g,q+j,c+p);b[2].set(e+d,k+h,q+o,c+n);b[3].set(e-d,k-h,q-o,c-n);b[4].set(e-f,k-i,q-m,c-r);b[5].set(e+f,k+i,q+m,c+r);for(d=0;d<6;d++){a=b[d];a.divideScalar(Math.sqrt(a.x*a.x+a.y*a.y+a.z*a.z))}};
 THREE.Frustum.prototype.contains=function(a){for(var b=0,c=this.planes,b=a.matrixWorld,d=b.elements,a=-a.geometry.boundingSphere.radius*b.getMaxScaleOnAxis(),f=0;f<6;f++){b=c[f].x*d[12]+c[f].y*d[13]+c[f].z*d[14]+c[f].w;if(b<=a)return false}return true};THREE.Frustum.__v1=new THREE.Vector3;
@@ -235,9 +235,9 @@ THREE.SkinnedMesh=function(a,b,c){THREE.Mesh.call(this,a,b);this.useVertexTextur
 this.geometry.bones[a];b=this.bones[a];c.parent===-1?this.add(b):this.bones[c.parent].add(b)}a=this.bones.length;if(this.useVertexTexture){this.boneTextureHeight=this.boneTextureWidth=a=a>256?64:a>64?32:a>16?16:8;this.boneMatrices=new Float32Array(this.boneTextureWidth*this.boneTextureHeight*4);this.boneTexture=new THREE.DataTexture(this.boneMatrices,this.boneTextureWidth,this.boneTextureHeight,THREE.RGBAFormat,THREE.FloatType);this.boneTexture.minFilter=THREE.NearestFilter;this.boneTexture.magFilter=
 THREE.NearestFilter;this.boneTexture.generateMipmaps=false;this.boneTexture.flipY=false}else this.boneMatrices=new Float32Array(16*a);this.pose()}};THREE.SkinnedMesh.prototype=Object.create(THREE.Mesh.prototype);THREE.SkinnedMesh.prototype.addBone=function(a){a===void 0&&(a=new THREE.Bone(this));this.bones.push(a);return a};
 THREE.SkinnedMesh.prototype.updateMatrixWorld=function(a){this.matrixAutoUpdate&&this.updateMatrix();if(this.matrixWorldNeedsUpdate||a){this.parent?this.matrixWorld.multiply(this.parent.matrixWorld,this.matrix):this.matrixWorld.copy(this.matrix);this.matrixWorldNeedsUpdate=false}for(var a=0,b=this.children.length;a<b;a++){var c=this.children[a];c instanceof THREE.Bone?c.update(this.identityMatrix,false):c.updateMatrixWorld(true)}if(this.boneInverses==void 0){this.boneInverses=[];for(a=0;a<this.bones.length;a++){b=
-new THREE.Matrix4;b.getInverse(this.bones[a].skinMatrix);this.boneInverses.push(b)}}for(a=0;a<this.bones.length;a++){b=new THREE.Matrix4;b.multiply(this.bones[a].skinMatrix,this.boneInverses[a]);b.flattenToArrayOffset(this.boneMatrices,a*16)}if(this.useVertexTexture)this.boneTexture.needsUpdate=true};THREE.SkinnedMesh.prototype.pose=function(){this.updateMatrixWorld(true)};
-THREE.MorphAnimMesh=function(a,b){THREE.Mesh.call(this,a,b);this.duration=1E3;this.mirroredLoop=false;this.currentKeyframe=this.lastKeyframe=this.time=0;this.direction=1;this.directionBackwards=false;this.setFrameRange(0,this.geometry.morphTargets.length-1)};THREE.MorphAnimMesh.prototype=Object.create(THREE.Mesh.prototype);THREE.MorphAnimMesh.prototype.setFrameRange=function(a,b){this.startKeyframe=a;this.endKeyframe=b;this.length=this.endKeyframe-this.startKeyframe+1};
-THREE.MorphAnimMesh.prototype.setDirectionForward=function(){this.direction=1;this.directionBackwards=false};THREE.MorphAnimMesh.prototype.setDirectionBackward=function(){this.direction=-1;this.directionBackwards=true};
+new THREE.Matrix4;b.getInverse(this.bones[a].skinMatrix);this.boneInverses.push(b)}}for(a=0;a<this.bones.length;a++){b=new THREE.Matrix4;b.multiply(this.bones[a].skinMatrix,this.boneInverses[a]);b.flattenToArrayOffset(this.boneMatrices,a*16)}if(this.useVertexTexture)this.boneTexture.needsUpdate=true};
+THREE.SkinnedMesh.prototype.pose=function(){this.updateMatrixWorld(true);for(var a=0;a<this.geometry.skinIndices.length;a++){var b=this.geometry.skinWeights[a],c=1/b.lengthManhattan();c!=Infinity?b.multiplyScalar(c):b.set(1)}};THREE.MorphAnimMesh=function(a,b){THREE.Mesh.call(this,a,b);this.duration=1E3;this.mirroredLoop=false;this.currentKeyframe=this.lastKeyframe=this.time=0;this.direction=1;this.directionBackwards=false;this.setFrameRange(0,this.geometry.morphTargets.length-1)};
+THREE.MorphAnimMesh.prototype=Object.create(THREE.Mesh.prototype);THREE.MorphAnimMesh.prototype.setFrameRange=function(a,b){this.startKeyframe=a;this.endKeyframe=b;this.length=this.endKeyframe-this.startKeyframe+1};THREE.MorphAnimMesh.prototype.setDirectionForward=function(){this.direction=1;this.directionBackwards=false};THREE.MorphAnimMesh.prototype.setDirectionBackward=function(){this.direction=-1;this.directionBackwards=true};
 THREE.MorphAnimMesh.prototype.parseAnimations=function(){var a=this.geometry;if(!a.animations)a.animations={};for(var b,c=a.animations,d=/([a-z]+)(\d+)/,f=0,e=a.morphTargets.length;f<e;f++){var g=a.morphTargets[f].name.match(d);if(g&&g.length>1){g=g[1];c[g]||(c[g]={start:Infinity,end:-Infinity});var h=c[g];if(f<h.start)h.start=f;if(f>h.end)h.end=f;b||(b=g)}}a.firstAnimation=b};
 THREE.MorphAnimMesh.prototype.setAnimationLabel=function(a,b,c){if(!this.geometry.animations)this.geometry.animations={};this.geometry.animations[a]={start:b,end:c}};THREE.MorphAnimMesh.prototype.playAnimation=function(a,b){var c=this.geometry.animations[a];if(c){this.setFrameRange(c.start,c.end);this.duration=1E3*((c.end-c.start)/b);this.time=0}else console.warn("animation["+a+"] undefined")};
 THREE.MorphAnimMesh.prototype.updateAnimation=function(a){var b=this.duration/this.length;this.time=this.time+this.direction*a;if(this.mirroredLoop){if(this.time>this.duration||this.time<0){this.direction=this.direction*-1;if(this.time>this.duration){this.time=this.duration;this.directionBackwards=true}if(this.time<0){this.time=0;this.directionBackwards=false}}}else{this.time=this.time%this.duration;if(this.time<0)this.time=this.time+this.duration}a=this.startKeyframe+THREE.Math.clamp(Math.floor(this.time/