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e=n.baseColorFactor;o.color.setRGB(e[0],e[1],e[2],l),o.opacity=e[3]}n.baseColorTexture!==void 0&&c.push(t.assignTexture(o,`map`,n.baseColorTexture,k)),o.metalness=n.metallicFactor===void 0?1:n.metallicFactor,o.roughness=n.roughnessFactor===void 0?1:n.roughnessFactor,n.metallicRoughnessTexture!==void 0&&(c.push(t.assignTexture(o,`metalnessMap`,n.metallicRoughnessTexture)),c.push(t.assignTexture(o,`roughnessMap`,n.metallicRoughnessTexture))),a=this._invokeOne(function(t){return t.getMaterialType&&t.getMaterialType(e)}),c.push(Promise.all(this._invokeAll(function(t){return t.extendMaterialParams&&t.extendMaterialParams(e,o)})))}i.doubleSided===!0&&(o.side=2);let u=i.alphaMode||J.OPAQUE;if(u===J.BLEND?(o.transparent=!0,o.depthWrite=!1):(o.transparent=!1,u===J.MASK&&(o.alphaTest=i.alphaCutoff===void 0?.5:i.alphaCutoff)),i.normalTexture!==void 0&&a!==D&&(c.push(t.assignTexture(o,`normalMap`,i.normalTexture)),o.normalScale=new j(1,1),i.normalTexture.scale!==void 0)){let e=i.normalTexture.scale;o.normalScale.set(e,e)}if(i.occlusionTexture!==void 0&&a!==D&&(c.push(t.assignTexture(o,`aoMap`,i.occlusionTexture)),i.occlusionTexture.strength!==void 0&&(o.aoMapIntensity=i.occlusionTexture.strength)),i.emissiveFactor!==void 0&&a!==D){let e=i.emissiveFactor;o.emissive=new T().setRGB(e[0],e[1],e[2],l)}return i.emissiveTexture!==void 0&&a!==D&&c.push(t.assignTexture(o,`emissiveMap`,i.emissiveTexture,k)),Promise.all(c).then(function(){let n=new a(o);return i.name&&(n.name=i.name),X(n,i),t.associations.set(n,{materials:e}),i.extensions&&Y(r,n,i),n})}createUniqueName(e){let t=Ee.sanitizeNodeName(e||``);return t in this.nodeNamesUsed?t+`_`+ ++this.nodeNamesUsed[t]:(this.nodeNamesUsed[t]=0,t)}loadGeometries(e){let t=this,n=this.extensions,r=this.primitiveCache;function i(e){return n[F.KHR_DRACO_MESH_COMPRESSION].decodePrimitive(e,t).then(function(n){return $(n,e,t)})}let a=[];for(let n=0,o=e.length;n<o;n++){let o=e[n],s=at(o),c=r[s];if(c)a.push(c.promise);else{let e;e=o.extensions&&o.extensions[F.KHR_DRACO_MESH_COMPRESSION]?i(o):$(new Te,o,t),r[s]={primitive:o,promise:e},a.push(e)}}return Promise.all(a)}loadMesh(e){let t=this,r=this.json,i=this.extensions,a=r.meshes[e],o=a.primitives,c=[];for(let e=0,t=o.length;e<t;e++){let t=o[e].material===void 0?nt(this.cache):this.getDependency(`material`,o[e].material);c.push(t)}return c.push(t.loadGeometries(o)),Promise.all(c).then(function(r){let c=r.slice(0,r.length-1),l=r[r.length-1],u=[];for(let r=0,s=l.length;r<s;r++){let s=l[r],d=o[r],f,p=c[r];if(d.mode===V.TRIANGLES||d.mode===V.TRIANGLE_STRIP||d.mode===V.TRIANGLE_FAN||d.mode===void 0)f=a.isSkinnedMesh===!0?new ee(s,p):new de(s,p),f.isSkinnedMesh===!0&&f.normalizeSkinWeights(),d.mode===V.TRIANGLE_STRIP?f.geometry=M(f.geometry,1):d.mode===V.TRIANGLE_FAN&&(f.geometry=M(f.geometry,2));else if(d.mode===V.LINES)f=new ie(s,p);else if(d.mode===V.LINE_STRIP)f=new ne(s,p);else if(d.mode===V.LINE_LOOP)f=new n(s,p);else if(d.mode===V.POINTS)f=new me(s,p);else throw Error(`THREE.GLTFLoader: Primitive mode unsupported: `+d.mode);Object.keys(f.geometry.morphAttributes).length>0&&it(f,a),f.name=t.createUniqueName(a.name||`mesh_`+e),X(f,a),d.extensions&&Y(i,f,d),t.assignFinalMaterial(f),u.push(f)}for(let n=0,r=u.length;n<r;n++)t.associations.set(u[n],{meshes:e,primitives:n});if(u.length===1)return a.extensions&&Y(i,u[0],a),u[0];let d=new s;a.extensions&&Y(i,d,a),t.associations.set(d,{meshes:e});for(let e=0,t=u.length;e<t;e++)d.add(u[e]);return d})}loadCamera(e){let t,n=this.json.cameras[e],r=n[n.type];if(!r){console.warn(`THREE.GLTFLoader: Missing camera parameters.`);return}return n.type===`perspective`?t=new xe(oe.radToDeg(r.yfov),r.aspectRatio||1,r.znear||1,r.zfar||2e6):n.type===`orthographic`&&(t=new pe(-r.xmag,r.xmag,r.ymag,-r.ymag,r.znear,r.zfar)),n.name&&(t.name=this.createUniqueName(n.name)),X(t,n),Promise.resolve(t)}loadSkin(t){let n=this.json.skins[t],r=[];for(let e=0,t=n.joints.length;e<t;e++)r.push(this._loadNodeShallow(n.joints[e]));return n.inverseBindMatrices===void 0?r.push(null):r.push(this.getDependency(`accessor`,n.inverseBindMatrices)),Promise.all(r).then(function(t){let r=t.pop(),i=t,a=[],s=[];for(let t=0,o=i.length;t<o;t++){let o=i[t];if(o){a.push(o);let n=new e;r!==null&&n.fromArray(r.array,t*16),s.push(n)}else console.warn(`THREE.GLTFLoader: Joint "%s" could not be found.`,n.joints[t])}return new o(a,s)})}loadAnimation(e){let t=this.json,n=this,r=t.animations[e],i=r.name?r.name:`animation_`+e,a=[],o=[],s=[],c=[],l=[];for(let e=0,t=r.channels.length;e<t;e++){let t=r.channels[e],n=r.samplers[t.sampler],i=t.target,u=i.node,d=r.parameters===void 0?n.input:r.parameters[n.input],f=r.parameters===void 0?n.output:r.parameters[n.output];i.node!==void 0&&(a.push(this.getDependency(`node`,u)),o.push(this.getDependency(`accessor`,d)),s.push(this.getDependency(`accessor`,f)),c.push(n),l.push(i))}return Promise.all([Promise.all(a),Promise.all(o),Promise.all(s),Promise.all(c),Promise.all(l)]).then(function(e){let t=e[0],a=e[1],o=e[2],s=e[3],c=e[4],l=[];for(let e=0,r=t.length;e<r;e++){let r=t[e],i=a[e],u=o[e],d=s[e],f=c[e];if(r===void 0)continue;r.updateMatrix&&r.updateMatrix();let p=n._createAnimationTracks(r,i,u,d,f);if(p)for(let e=0;e<p.length;e++)l.push(p[e])}let u=new Se(i,void 0,l);return X(u,r),u})}createNodeMesh(e){let t=this.json,n=this,r=t.nodes[e];return r.mesh===void 0?null:n.getDependency(`mesh`,r.mesh).then(function(e){let t=n._getNodeRef(n.meshCache,r.mesh,e);return r.weights!==void 0&&t.traverse(function(e){if(e.isMesh)for(let t=0,n=r.weights.length;t<n;t++)e.morphTargetInfluences[t]=r.weights[t]}),t})}loadNode(e){let t=this.json,n=this,i=t.nodes[e],a=n._loadNodeShallow(e),o=[],s=i.children||[];for(let e=0,t=s.length;e<t;e++)o.push(n.getDependency(`node`,s[e]));let c=i.skin===void 0?Promise.resolve(null):n.getDependency(`skin`,i.skin);return Promise.all([a,Promise.all(o),c]).then(function(e){let t=e[0],n=e[1],i=e[2];i!==null&&t.traverse(function(e){e.isSkinnedMesh&&e.bind(i,st)});for(let e=0,r=n.length;e<r;e++)t.add(n[e]);if(t.userData.pivot!==void 0&&n.length>0){let e=t.userData.pivot,i=n[0];t.pivot=new r().fromArray(e),t.position.x-=e[0],t.position.y-=e[1],t.position.z-=e[2],i.position.set(0,0,0),delete t.userData.pivot}return t})}_loadNodeShallow(t){let n=this.json,r=this.extensions,i=this;if(this.nodeCache[t]!==void 0)return this.nodeCache[t];let a=n.nodes[t],o=a.name?i.createUniqueName(a.name):``,c=[],l=i._invokeOne(function(e){return e.createNodeMesh&&e.createNodeMesh(t)});return l&&c.push(l),a.camera!==void 0&&c.push(i.getDependency(`camera`,a.camera).then(function(e){return i._getNodeRef(i.cameraCache,a.camera,e)})),i._invokeAll(function(e){return e.createNodeAttachment&&e.createNodeAttachment(t)}).forEach(function(e){c.push(e)}),this.nodeCache[t]=Promise.all(c).then(function(n){let c;if(c=a.isBone===!0?new ye:n.length>1?new s:n.length===1?n[0]:new ue,c!==n[0])for(let e=0,t=n.length;e<t;e++)c.add(n[e]);if(a.name&&(c.userData.name=a.name,c.name=o),X(c,a),a.extensions&&Y(r,c,a),a.matrix!==void 0){let t=new e;t.fromArray(a.matrix),c.applyMatrix4(t)}else a.translation!==void 0&&c.position.fromArray(a.translation),a.rotation!==void 0&&c.quaternion.fromArray(a.rotation),a.scale!==void 0&&c.scale.fromArray(a.scale);if(!i.associations.has(c))i.associations.set(c,{});else if(a.mesh!==void 0&&i.meshCache.refs[a.mesh]>1){let e=i.associations.get(c);i.associations.set(c,{...e})}return i.associations.get(c).nodes=t,c}),this.nodeCache[t]}loadScene(e){let t=this.extensions,n=this.json.scenes[e],r=this,i=new s;n.name&&(i.name=r.createUniqueName(n.name)),X(i,n),n.extensions&&Y(t,i,n);let a=n.nodes||[],o=[];for(let e=0,t=a.length;e<t;e++)o.push(r.getDependency(`node`,a[e]));return Promise.all(o).then(function(e){for(let t=0,n=e.length;t<n;t++){let n=e[t];n.parent===null?i.add(n):i.add(ke(n))}return r.associations=(e=>{let t=new Map;for(let[e,n]of r.associations)(e instanceof b||e instanceof y)&&t.set(e,n);return e.traverse(e=>{let n=r.associations.get(e);n!=null&&t.set(e,n)}),t})(i),i})}_createAnimationTracks(e,t,n,r,i){let a=[],o=e.name?e.name:e.uuid,s=[];function c(e){e.morphTargetInfluences&&s.push(e.name?e.name:e.uuid)}q[i.path]===q.weights?(c(e),e.isGroup&&e.children.forEach(c)):s.push(o);let l;switch(q[i.path]){case q.weights:l=O;break;case q.rotation:l=ce;break;case q.translation:case q.scale:l=d;break;default:switch(n.itemSize){case 1:l=O;break;default:l=d;break}break}let u=r.interpolation===void 0?m:tt[r.interpolation],f=this._getArrayFromAccessor(n);for(let e=0,n=s.length;e<n;e++){let n=new l(s[e]+`.`+q[i.path],t.array,f,u);r.interpolation===`CUBICSPLINE`&&this._createCubicSplineTrackInterpolant(n),a.push(n)}return a}_getArrayFromAccessor(e){let t=e.array;if(e.normalized){let e=Q(t.constructor),n=new Float32Array(t.length);for(let r=0,i=t.length;r<i;r++)n[r]=t[r]*e;t=n}return t}_createCubicSplineTrackInterpolant(e){e.createInterpolant=function(e){return new(this instanceof ce?et:B)(this.times,this.values,this.getValueSize()/3,e)},e.createInterpolant.isInterpolantFactoryMethodGLTFCubicSpline=!0}};function lt(e,t,n){let i=t.attributes,a=new Ce;if(i.POSITION!==void 0){let e=n.json.accessors[i.POSITION],t=e.min,o=e.max;if(t!==void 0&&o!==void 0){if(a.set(new r(t[0],t[1],t[2]),new r(o[0],o[1],o[2])),e.normalized){let t=Q(H[e.componentType]);a.min.multiplyScalar(t),a.max.multiplyScalar(t)}}else{console.warn(`THREE.GLTFLoader: Missing min/max properties for accessor POSITION.`);return}}else return;let o=t.targets;if(o!==void 0){let e=new r,t=new r;for(let r=0,i=o.length;r<i;r++){let i=o[r];if(i.POSITION!==void 0){let r=n.json.accessors[i.POSITION],a=r.min,o=r.max;if(a!==void 0&&o!==void 0){if(t.setX(Math.max(Math.abs(a[0]),Math.abs(o[0]))),t.setY(Math.max(Math.abs(a[1]),Math.abs(o[1]))),t.setZ(Math.max(Math.abs(a[2]),Math.abs(o[2]))),r.normalized){let e=Q(H[r.componentType]);t.multiplyScalar(e)}e.max(t)}else console.warn(`THREE.GLTFLoader: Missing min/max properties for accessor POSITION.`)}}a.expandByVector(e)}e.boundingBox=a;let s=new _e;a.getCenter(s.center),s.radius=a.min.distanceTo(a.max)/2,e.boundingSphere=s}function $(e,t,n){let r=t.attributes,i=[];function a(t,r){return n.getDependency(`accessor`,t).then(function(t){e.setAttribute(r,t)})}for(let t in r){let n=K[t]||t.toLowerCase();n in e.attributes||i.push(a(r[t],n))}if(t.indices!==void 0&&!e.index){let r=n.getDependency(`accessor`,t.indices).then(function(t){e.setIndex(t)});i.push(r)}return w.workingColorSpace!==`srgb-linear`&&`COLOR_0`in r&&console.warn(`THREE.GLTFLoader: Converting vertex colors from "srgb-linear" to "${w.workingColorSpace}" not supported.`),X(e,t),lt(e,t,n),Promise.all(i).then(function(){return t.targets===void 0?e:rt(e,t.targets,n)})}export{Ae as GLTFLoader};