Function d

hub/astray/Three.js:24–24

(a,b,c,d)

THREE.Frustum.prototype.setFromMatrix=function(a){var b,c=this.planes,d=a.elements,a=d[0];b=d[1];var e=d[2],f=d[3],g=d[4],h=d[5],j=d[6],l=d[7],k=d[8],p=d[9],m=d[10],o=d[11],q=d[12],n=d[13],r=d[14],d=d[15];c[0].set(f-a,l-g,o-k,d-q);c[1].set(f+a,l+g,o+k,d+q);c[2].set(f+b,l+h,o+p,d+n);c[3].set(f-b,l-h,o-p,d-n);c[4].set(f-e,l-j,o-m,d-r);c[5].set(f+e,l+j,o+m,d+r);for(a=0;a<6;a++){b=c[a];b.divideScalar(Math.sqrt(b.x*b.x+b.y*b.y+b.z*b.z))}};
THREE.Frustum.prototype.contains=function(a){for(var b=this.planes,c=a.matrixWorld,d=c.elements,c=-a.geometry.boundingSphere.radius*c.getMaxScaleOnAxis(),e=0;e<6;e++){a=b[e].x*d[12]+b[e].y*d[13]+b[e].z*d[14]+b[e].w;if(a<=c)return false}return true};THREE.Frustum.__v1=new THREE.Vector3;
THREE.Ray=function(a,b){function c(a,b,c){q.sub(c,a);u=q.dot(b);t=n.add(a,r.copy(b).multiplyScalar(u));return y=c.distanceTo(t)}function d(a,b,c,d){q.sub(d,b);n.sub(c,b);r.sub(a,b);s=q.dot(q);w=q.dot(n);H=q.dot(r);E=n.dot(n);z=n.dot(r);v=1/(s*E-w*w);A=(E*H-w*z)*v;J=(s*z-w*H)*v;return A>=0&&J>=0&&A+J<1}this.origin=a||new THREE.Vector3;this.direction=b||new THREE.Vector3;var e=1.0E-4;this.setPrecision=function(a){e=a};var f=new THREE.Vector3,g=new THREE.Vector3,h=new THREE.Vector3,j=new THREE.Vector3,
l=new THREE.Vector3,k=new THREE.Vector3,p=new THREE.Vector3,m=new THREE.Vector3,o=new THREE.Vector3;this.intersectObject=function(a){var b,n=[];if(a instanceof THREE.Particle){var q=c(this.origin,this.direction,a.matrixWorld.getPosition());if(q>a.scale.x)return[];b={distance:q,point:a.position,face:null,object:a};n.push(b)}else if(a instanceof THREE.Mesh){var q=c(this.origin,this.direction,a.matrixWorld.getPosition()),r=THREE.Frustum.__v1.set(a.matrixWorld.getColumnX().length(),a.matrixWorld.getColumnY().length(),
a.matrixWorld.getColumnZ().length());if(q>a.geometry.boundingSphere.radius*Math.max(r.x,Math.max(r.y,r.z)))return n;var s,i,t=a.geometry,u=t.vertices,C;a.matrixRotationWorld.extractRotation(a.matrixWorld);q=0;for(r=t.faces.length;q<r;q++){b=t.faces[q];l.copy(this.origin);k.copy(this.direction);C=a.matrixWorld;p=C.multiplyVector3(p.copy(b.centroid)).subSelf(l);m=a.matrixRotationWorld.multiplyVector3(m.copy(b.normal));s=k.dot(m);if(!(Math.abs(s)<e)){i=m.dot(p)/s;if(!(i<0)&&(a.doubleSided||(a.flipSided?
s>0:s<0))){o.add(l,k.multiplyScalar(i));if(b instanceof THREE.Face3){f=C.multiplyVector3(f.copy(u[b.a]));g=C.multiplyVector3(g.copy(u[b.b]));h=C.multiplyVector3(h.copy(u[b.c]));if(d(o,f,g,h)){b={distance:l.distanceTo(o),point:o.clone(),face:b,object:a};n.push(b)}}else if(b instanceof THREE.Face4){f=C.multiplyVector3(f.copy(u[b.a]));g=C.multiplyVector3(g.copy(u[b.b]));h=C.multiplyVector3(h.copy(u[b.c]));j=C.multiplyVector3(j.copy(u[b.d]));if(d(o,f,g,j)||d(o,g,h,j)){b={distance:l.distanceTo(o),point:o.clone(),