Added GeometryUtils.center.

build/Three.js

@@ -349,7 +349,8 @@ for(k=w.length;f<k;f++)v=w[f],u.vertexNormals.push(v.clone());u.color.copy(n.col
 f+h>1&&(f=1-f,h=1-h);m=1-f-h;k.copy(b);k.multiplyScalar(f);n.copy(c);n.multiplyScalar(h);k.addSelf(n);n.copy(e);n.multiplyScalar(m);k.addSelf(n);return k},randomPointInFace:function(b,c,e){var f,h,m;if(b instanceof THREE.Face3)return f=c.vertices[b.a].position,h=c.vertices[b.b].position,m=c.vertices[b.c].position,THREE.GeometryUtils.randomPointInTriangle(f,h,m);else if(b instanceof THREE.Face4){f=c.vertices[b.a].position;h=c.vertices[b.b].position;m=c.vertices[b.c].position;var c=c.vertices[b.d].position,
 k;e?b._area1&&b._area2?(e=b._area1,k=b._area2):(e=THREE.GeometryUtils.triangleArea(f,h,c),k=THREE.GeometryUtils.triangleArea(h,m,c),b._area1=e,b._area2=k):(e=THREE.GeometryUtils.triangleArea(f,h,c),k=THREE.GeometryUtils.triangleArea(h,m,c));return THREE.GeometryUtils.random()*(e+k)<e?THREE.GeometryUtils.randomPointInTriangle(f,h,c):THREE.GeometryUtils.randomPointInTriangle(h,m,c)}},randomPointsInGeometry:function(b,c){function e(b){function e(c,f){if(f<c)return c;var h=c+Math.floor((f-c)/2);return v[h]>
 b?e(c,h-1):v[h]<b?e(h+1,f):h}return e(0,v.length-1)}var f,h,m=b.faces,k=b.vertices,n=m.length,u=0,v=[],w,t,x,p;for(h=0;h<n;h++){f=m[h];if(f instanceof THREE.Face3)w=k[f.a].position,t=k[f.b].position,x=k[f.c].position,f._area=THREE.GeometryUtils.triangleArea(w,t,x);else if(f instanceof THREE.Face4)w=k[f.a].position,t=k[f.b].position,x=k[f.c].position,p=k[f.d].position,f._area1=THREE.GeometryUtils.triangleArea(w,t,p),f._area2=THREE.GeometryUtils.triangleArea(t,x,p),f._area=f._area1+f._area2;u+=f._area;
-v[h]=u}f=[];k={};for(h=0;h<c;h++)n=THREE.GeometryUtils.random()*u,n=e(n),f[h]=THREE.GeometryUtils.randomPointInFace(m[n],b,!0),k[n]?k[n]+=1:k[n]=1;return f},triangleArea:function(b,c,e){var f,h=THREE.GeometryUtils.__v1;h.sub(b,c);f=h.length();h.sub(b,e);b=h.length();h.sub(c,e);e=h.length();c=0.5*(f+b+e);return Math.sqrt(c*(c-f)*(c-b)*(c-e))},random16:function(){return(65280*Math.random()+255*Math.random())/65535}};THREE.GeometryUtils.random=THREE.GeometryUtils.random16;THREE.GeometryUtils.__v1=new THREE.Vector3;
+v[h]=u}f=[];k={};for(h=0;h<c;h++)n=THREE.GeometryUtils.random()*u,n=e(n),f[h]=THREE.GeometryUtils.randomPointInFace(m[n],b,!0),k[n]?k[n]+=1:k[n]=1;return f},triangleArea:function(b,c,e){var f,h=THREE.GeometryUtils.__v1;h.sub(b,c);f=h.length();h.sub(b,e);b=h.length();h.sub(c,e);e=h.length();c=0.5*(f+b+e);return Math.sqrt(c*(c-f)*(c-b)*(c-e))},random16:function(){return(65280*Math.random()+255*Math.random())/65535},center:function(b){b.computeBoundingBox();var c=new THREE.Matrix4;c.setTranslation(-0.5*
+(b.boundingBox.x[1]+b.boundingBox.x[0]),-0.5*(b.boundingBox.y[1]+b.boundingBox.y[0]),-0.5*(b.boundingBox.z[1]+b.boundingBox.z[0]));b.applyMatrix(c);b.computeBoundingBox()}};THREE.GeometryUtils.random=THREE.GeometryUtils.random16;THREE.GeometryUtils.__v1=new THREE.Vector3;
 THREE.ImageUtils={loadTexture:function(b,c,e){var f=new Image,h=new THREE.Texture(f,c);f.onload=function(){h.needsUpdate=!0;e&&e(this)};f.crossOrigin="";f.src=b;return h},loadTextureCube:function(b,c,e){var f,h=[],m=new THREE.Texture(h,c),c=h.loadCount=0;for(f=b.length;c<f;++c)h[c]=new Image,h[c].onload=function(){h.loadCount+=1;if(h.loadCount==6)m.needsUpdate=!0;e&&e(this)},h[c].crossOrigin="",h[c].src=b[c];return m},getNormalMap:function(b,c){var e=function(b){var e=Math.sqrt(b[0]*b[0]+b[1]*b[1]+
 b[2]*b[2]);return[b[0]/e,b[1]/e,b[2]/e]};c|=1;var f=b.width,h=b.height,m=document.createElement("canvas");m.width=f;m.height=h;var k=m.getContext("2d");k.drawImage(b,0,0);for(var n=k.getImageData(0,0,f,h).data,u=k.createImageData(f,h),v=u.data,w=0;w<f;w++)for(var t=1;t<h;t++){var x=t-1<0?h-1:t-1,p=(t+1)%h,y=w-1<0?f-1:w-1,z=(w+1)%f,A=[],C=[0,0,n[(t*f+w)*4]/255*c];A.push([-1,0,n[(t*f+y)*4]/255*c]);A.push([-1,-1,n[(x*f+y)*4]/255*c]);A.push([0,-1,n[(x*f+w)*4]/255*c]);A.push([1,-1,n[(x*f+z)*4]/255*c]);
 A.push([1,0,n[(t*f+z)*4]/255*c]);A.push([1,1,n[(p*f+z)*4]/255*c]);A.push([0,1,n[(p*f+w)*4]/255*c]);A.push([-1,1,n[(p*f+y)*4]/255*c]);x=[];y=A.length;for(p=0;p<y;p++){var z=A[p],E=A[(p+1)%y],z=[z[0]-C[0],z[1]-C[1],z[2]-C[2]],E=[E[0]-C[0],E[1]-C[1],E[2]-C[2]];x.push(e([z[1]*E[2]-z[2]*E[1],z[2]*E[0]-z[0]*E[2],z[0]*E[1]-z[1]*E[0]]))}A=[0,0,0];for(p=0;p<x.length;p++)A[0]+=x[p][0],A[1]+=x[p][1],A[2]+=x[p][2];A[0]/=x.length;A[1]/=x.length;A[2]/=x.length;C=(t*f+w)*4;v[C]=(A[0]+1)/2*255|0;v[C+1]=(A[1]+0.5)*

build/custom/ThreeExtras.js

@@ -8,7 +8,8 @@ for(f=n.length;e<f;e++)m=n[e],l.vertexNormals.push(m.clone());l.color.copy(k.col
 e+g>1&&(e=1-e,g=1-g);h=1-e-g;f.copy(a);f.multiplyScalar(e);k.copy(b);k.multiplyScalar(g);f.addSelf(k);k.copy(c);k.multiplyScalar(h);f.addSelf(k);return f},randomPointInFace:function(a,b,c){var e,g,h;if(a instanceof THREE.Face3)return e=b.vertices[a.a].position,g=b.vertices[a.b].position,h=b.vertices[a.c].position,THREE.GeometryUtils.randomPointInTriangle(e,g,h);else if(a instanceof THREE.Face4){e=b.vertices[a.a].position;g=b.vertices[a.b].position;h=b.vertices[a.c].position;var b=b.vertices[a.d].position,
 f;c?a._area1&&a._area2?(c=a._area1,f=a._area2):(c=THREE.GeometryUtils.triangleArea(e,g,b),f=THREE.GeometryUtils.triangleArea(g,h,b),a._area1=c,a._area2=f):(c=THREE.GeometryUtils.triangleArea(e,g,b),f=THREE.GeometryUtils.triangleArea(g,h,b));return THREE.GeometryUtils.random()*(c+f)<c?THREE.GeometryUtils.randomPointInTriangle(e,g,b):THREE.GeometryUtils.randomPointInTriangle(g,h,b)}},randomPointsInGeometry:function(a,b){function c(a){function c(b,e){if(e<b)return b;var f=b+Math.floor((e-b)/2);return m[f]>
 a?c(b,f-1):m[f]<a?c(f+1,e):f}return c(0,m.length-1)}var e,g,h=a.faces,f=a.vertices,k=h.length,l=0,m=[],n,o,t,p;for(g=0;g<k;g++){e=h[g];if(e instanceof THREE.Face3)n=f[e.a].position,o=f[e.b].position,t=f[e.c].position,e._area=THREE.GeometryUtils.triangleArea(n,o,t);else if(e instanceof THREE.Face4)n=f[e.a].position,o=f[e.b].position,t=f[e.c].position,p=f[e.d].position,e._area1=THREE.GeometryUtils.triangleArea(n,o,p),e._area2=THREE.GeometryUtils.triangleArea(o,t,p),e._area=e._area1+e._area2;l+=e._area;
-m[g]=l}e=[];f={};for(g=0;g<b;g++)k=THREE.GeometryUtils.random()*l,k=c(k),e[g]=THREE.GeometryUtils.randomPointInFace(h[k],a,!0),f[k]?f[k]+=1:f[k]=1;return e},triangleArea:function(a,b,c){var e,g=THREE.GeometryUtils.__v1;g.sub(a,b);e=g.length();g.sub(a,c);a=g.length();g.sub(b,c);c=g.length();b=0.5*(e+a+c);return Math.sqrt(b*(b-e)*(b-a)*(b-c))},random16:function(){return(65280*Math.random()+255*Math.random())/65535}};THREE.GeometryUtils.random=THREE.GeometryUtils.random16;THREE.GeometryUtils.__v1=new THREE.Vector3;
+m[g]=l}e=[];f={};for(g=0;g<b;g++)k=THREE.GeometryUtils.random()*l,k=c(k),e[g]=THREE.GeometryUtils.randomPointInFace(h[k],a,!0),f[k]?f[k]+=1:f[k]=1;return e},triangleArea:function(a,b,c){var e,g=THREE.GeometryUtils.__v1;g.sub(a,b);e=g.length();g.sub(a,c);a=g.length();g.sub(b,c);c=g.length();b=0.5*(e+a+c);return Math.sqrt(b*(b-e)*(b-a)*(b-c))},random16:function(){return(65280*Math.random()+255*Math.random())/65535},center:function(a){a.computeBoundingBox();var b=new THREE.Matrix4;b.setTranslation(-0.5*
+(a.boundingBox.x[1]+a.boundingBox.x[0]),-0.5*(a.boundingBox.y[1]+a.boundingBox.y[0]),-0.5*(a.boundingBox.z[1]+a.boundingBox.z[0]));a.applyMatrix(b);a.computeBoundingBox()}};THREE.GeometryUtils.random=THREE.GeometryUtils.random16;THREE.GeometryUtils.__v1=new THREE.Vector3;
 THREE.ImageUtils={loadTexture:function(a,b,c){var e=new Image,g=new THREE.Texture(e,b);e.onload=function(){g.needsUpdate=!0;c&&c(this)};e.crossOrigin="";e.src=a;return g},loadTextureCube:function(a,b,c){var e,g=[],h=new THREE.Texture(g,b),b=g.loadCount=0;for(e=a.length;b<e;++b)g[b]=new Image,g[b].onload=function(){g.loadCount+=1;if(g.loadCount==6)h.needsUpdate=!0;c&&c(this)},g[b].crossOrigin="",g[b].src=a[b];return h},getNormalMap:function(a,b){var c=function(a){var c=Math.sqrt(a[0]*a[0]+a[1]*a[1]+
 a[2]*a[2]);return[a[0]/c,a[1]/c,a[2]/c]};b|=1;var e=a.width,g=a.height,h=document.createElement("canvas");h.width=e;h.height=g;var f=h.getContext("2d");f.drawImage(a,0,0);for(var k=f.getImageData(0,0,e,g).data,l=f.createImageData(e,g),m=l.data,n=0;n<e;n++)for(var o=1;o<g;o++){var t=o-1<0?g-1:o-1,p=(o+1)%g,x=n-1<0?e-1:n-1,v=(n+1)%e,u=[],z=[0,0,k[(o*e+n)*4]/255*b];u.push([-1,0,k[(o*e+x)*4]/255*b]);u.push([-1,-1,k[(t*e+x)*4]/255*b]);u.push([0,-1,k[(t*e+n)*4]/255*b]);u.push([1,-1,k[(t*e+v)*4]/255*b]);
 u.push([1,0,k[(o*e+v)*4]/255*b]);u.push([1,1,k[(p*e+v)*4]/255*b]);u.push([0,1,k[(p*e+n)*4]/255*b]);u.push([-1,1,k[(p*e+x)*4]/255*b]);t=[];x=u.length;for(p=0;p<x;p++){var v=u[p],y=u[(p+1)%x],v=[v[0]-z[0],v[1]-z[1],v[2]-z[2]],y=[y[0]-z[0],y[1]-z[1],y[2]-z[2]];t.push(c([v[1]*y[2]-v[2]*y[1],v[2]*y[0]-v[0]*y[2],v[0]*y[1]-v[1]*y[0]]))}u=[0,0,0];for(p=0;p<t.length;p++)u[0]+=t[p][0],u[1]+=t[p][1],u[2]+=t[p][2];u[0]/=t.length;u[1]/=t.length;u[2]/=t.length;z=(o*e+n)*4;m[z]=(u[0]+1)/2*255|0;m[z+1]=(u[1]+0.5)*

src/extras/GeometryUtils.js

@@ -444,8 +444,27 @@ THREE.GeometryUtils = {
 
 		return ( 65280 * Math.random() + 255 * Math.random() ) / 65535;
 
+	},
+
+	center: function( geometry ) {
+
+		geometry.computeBoundingBox();
+
+		var matrix = new THREE.Matrix4();
+
+		var dx = -0.5 * ( geometry.boundingBox.x[ 1 ] + geometry.boundingBox.x[ 0 ] );
+		var dy = -0.5 * ( geometry.boundingBox.y[ 1 ] + geometry.boundingBox.y[ 0 ] );
+		var dz = -0.5 * ( geometry.boundingBox.z[ 1 ] + geometry.boundingBox.z[ 0 ] );
+
+		matrix.setTranslation( dx, dy, dz );
+
+		geometry.applyMatrix( matrix );
+
+		geometry.computeBoundingBox();
+
 	}
 
+
 };
 
 THREE.GeometryUtils.random = THREE.GeometryUtils.random16;