import{$d as bJ,$f as XX,Aa as FJ,Ad as v,Fd as fJ,Gf as HJ,Hd as l,If as QJ,Kf as WJ,Lb as yJ,Lf as rJ,Mb as GJ,Pf as tJ,Qf as _J,Rd as gJ,Sd as i,Td as r,Ub as PJ,Ud as t,Vb as c,Vd as m,Wb as b,Wf as eJ,_d as h,_f as JX,ae as lJ,ag as YX,be as uJ,bg as ZX,cc as f,cg as $X,dc as k,de as dJ,ed as xJ,ee as e,fd as KJ,fe as cJ,gd as CJ,hd as M,ig as y,jd as $J,ke as pJ,le as mJ,m as MJ,md as qJ,me as nJ,mg as qX,ne as sJ,nf as zJ,o as IJ,oe as aJ,of as N,pa as n,pe as oJ,qa as jJ,ra as vJ,sa as OJ,ta as AJ,ud as d,va as DJ,xa as s,xd as RJ,ya as hJ,yd as p,yf as iJ,yg as HX}from"./chunk-nw9je8wy.js";function JJ(J,X){if(X===PJ)return console.warn("THREE.BufferGeometryUtils.toTrianglesDrawMode(): Geometry already defined as triangles."),J;if(X===b||X===c){let Z=J.getIndex();if(Z===null){let Q=[],q=J.getAttribute("position");if(q!==void 0){for(let W=0;W<q.count;W++)Q.push(W);J.setIndex(Q),Z=J.getIndex()}else return console.error("THREE.BufferGeometryUtils.toTrianglesDrawMode(): Undefined position attribute. Processing not possible."),J}let Y=Z.count-2,$=[];if(X===b)for(let Q=1;Q<=Y;Q++)$.push(Z.getX(0)),$.push(Z.getX(Q)),$.push(Z.getX(Q+1));else for(let Q=0;Q<Y;Q++)if(Q%2===0)$.push(Z.getX(Q)),$.push(Z.getX(Q+1)),$.push(Z.getX(Q+2));else $.push(Z.getX(Q+2)),$.push(Z.getX(Q+1)),$.push(Z.getX(Q));if($.length/3!==Y)console.error("THREE.BufferGeometryUtils.toTrianglesDrawMode(): Unable to generate correct amount of triangles.");let H=J.clone();return H.setIndex($),H.clearGroups(),H}else return console.error("THREE.BufferGeometryUtils.toTrianglesDrawMode(): Unknown draw mode:",X),J}function VJ(J){let X=new Map,Z=new Map,Y=J.clone();return SJ(J,Y,function($,H){X.set(H,$),Z.set($,H)}),Y.traverse(function($){if(!$.isSkinnedMesh)return;let H=$,Q=X.get($),q=Q.skeleton.bones;H.skeleton=Q.skeleton.clone(),H.bindMatrix.copy(Q.bindMatrix),H.skeleton.bones=q.map(function(W){return Z.get(W)}),H.bind(H.skeleton,H.bindMatrix)}),Y}function SJ(J,X,Z){Z(J,X);for(let Y=0;Y<J.children.length;Y++)SJ(J.children[Y],X.children[Y],Z)}class vX extends tJ{constructor(J){super(J);this.dracoLoader=null,this.ktx2Loader=null,this.meshoptDecoder=null,this.pluginCallbacks=[],this.register(function(X){return new UX(X)}),this.register(function(X){return new LX(X)}),this.register(function(X){return new BX(X)}),this.register(function(X){return new PX(X)}),this.register(function(X){return new VX(X)}),this.register(function(X){return new FX(X)}),this.register(function(X){return new GX(X)}),this.register(function(X){return new KX(X)}),this.register(function(X){return new CX(X)}),this.register(function(X){return new EX(X)}),this.register(function(X){return new RX(X)}),this.register(function(X){return new OX(X)}),this.register(function(X){return new _X(X)}),this.register(function(X){return new zX(X)}),this.register(function(X){return new QX(X)}),this.register(function(X){return new EJ(X,K.EXT_MESHOPT_COMPRESSION)}),this.register(function(X){return new EJ(X,K.KHR_MESHOPT_COMPRESSION)}),this.register(function(X){return new SX(X)})}load(J,X,Z,Y){let $=this,H;if(this.resourcePath!=="")H=this.resourcePath;else if(this.path!==""){let W=y.extractUrlBase(J);H=y.resolveURL(W,this.path)}else H=y.extractUrlBase(J);this.manager.itemStart(J);let Q=function(W){if(Y)Y(W);else console.error(W);$.manager.itemError(J),$.manager.itemEnd(J)},q=new _J(this.manager);q.setPath(this.path),q.setResponseType("arraybuffer"),q.setRequestHeader(this.requestHeader),q.setWithCredentials(this.withCredentials),q.load(J,function(W){try{$.parse(W,H,function(E){X(E),$.manager.itemEnd(J)},Q)}catch(E){Q(E)}},Z,Q)}setDRACOLoader(J){return this.dracoLoader=J,this}setKTX2Loader(J){return this.ktx2Loader=J,this}setMeshoptDecoder(J){return this.meshoptDecoder=J,this}register(J){if(this.pluginCallbacks.indexOf(J)===-1)this.pluginCallbacks.push(J);return this}unregister(J){if(this.pluginCallbacks.indexOf(J)!==-1)this.pluginCallbacks.splice(this.pluginCallbacks.indexOf(J),1);return this}parse(J,X,Z,Y){let $,H={},Q={},q=new TextDecoder;if(typeof J==="string")$=JSON.parse(J);else if(J instanceof ArrayBuffer)if(q.decode(new Uint8Array(J,0,4))===wX){try{H[K.KHR_BINARY_GLTF]=new NX(J)}catch(U){if(Y)Y(U);return}$=JSON.parse(H[K.KHR_BINARY_GLTF].content)}else $=JSON.parse(q.decode(J));else $=J;if($.asset===void 0||$.asset.version[0]<2){if(Y)Y(Error("THREE.GLTFLoader: Unsupported asset. glTF versions >=2.0 are supported."));return}let W=new jX($,{path:X||this.resourcePath||"",crossOrigin:this.crossOrigin,requestHeader:this.requestHeader,manager:this.manager,ktx2Loader:this.ktx2Loader,meshoptDecoder:this.meshoptDecoder});W.fileLoader.setRequestHeader(this.requestHeader);for(let E=0;E<this.pluginCallbacks.length;E++){let U=this.pluginCallbacks[E](W);if(!U.name)console.error("THREE.GLTFLoader: Invalid plugin found: missing name");Q[U.name]=U,H[U.name]=!0}if($.extensionsUsed)for(let E=0;E<$.extensionsUsed.length;++E){let U=$.extensionsUsed[E],L=$.extensionsRequired||[];switch(U){case K.KHR_MATERIALS_UNLIT:H[U]=new WX;break;case K.KHR_DRACO_MESH_COMPRESSION:H[U]=new TX($,this.dracoLoader);break;case K.KHR_TEXTURE_TRANSFORM:H[U]=new kX;break;case K.KHR_MESH_QUANTIZATION:H[U]=new MX;break;default:if(L.indexOf(U)>=0&&Q[U]===void 0)console.warn('THREE.GLTFLoader: Unknown extension "'+U+'".')}}W.setExtensions(H),W.setPlugins(Q),W.parse(Z,Y)}parseAsync(J,X){let Z=this;return new Promise(function(Y,$){Z.parse(J,X,Y,$)})}}function AX(){let J={};return{get:function(X){return J[X]},add:function(X,Z){J[X]=Z},remove:function(X){delete J[X]},removeAll:function(){J={}}}}function P(J,X,Z){let Y=J.json.materials[X];if(Y.extensions&&Y.extensions[Z])return Y.extensions[Z];return null}var K={KHR_BINARY_GLTF:"KHR_binary_glTF",KHR_DRACO_MESH_COMPRESSION:"KHR_draco_mesh_compression",KHR_LIGHTS_PUNCTUAL:"KHR_lights_punctual",KHR_MATERIALS_CLEARCOAT:"KHR_materials_clearcoat",KHR_MATERIALS_DISPERSION:"KHR_materials_dispersion",KHR_MATERIALS_IOR:"KHR_materials_ior",KHR_MATERIALS_SHEEN:"KHR_materials_sheen",KHR_MATERIALS_SPECULAR:"KHR_materials_specular",KHR_MATERIALS_TRANSMISSION:"KHR_materials_transmission",KHR_MATERIALS_IRIDESCENCE:"KHR_materials_iridescence",KHR_MATERIALS_ANISOTROPY:"KHR_materials_anisotropy",KHR_MATERIALS_UNLIT:"KHR_materials_unlit",KHR_MATERIALS_VOLUME:"KHR_materials_volume",KHR_TEXTURE_BASISU:"KHR_texture_basisu",KHR_TEXTURE_TRANSFORM:"KHR_texture_transform",KHR_MESH_QUANTIZATION:"KHR_mesh_quantization",KHR_MATERIALS_EMISSIVE_STRENGTH:"KHR_materials_emissive_strength",EXT_MATERIALS_BUMP:"EXT_materials_bump",EXT_TEXTURE_WEBP:"EXT_texture_webp",EXT_TEXTURE_AVIF:"EXT_texture_avif",EXT_MESHOPT_COMPRESSION:"EXT_meshopt_compression",KHR_MESHOPT_COMPRESSION:"KHR_meshopt_compression",EXT_MESH_GPU_INSTANCING:"EXT_mesh_gpu_instancing"};class QX{constructor(J){this.parser=J,this.name=K.KHR_LIGHTS_PUNCTUAL,this.cache={refs:{},uses:{}}}_markDefs(){let J=this.parser,X=this.parser.json.nodes||[];for(let Z=0,Y=X.length;Z<Y;Z++){let $=X[Z];if($.extensions&&$.extensions[this.name]&&$.extensions[this.name].light!==void 0)J._addNodeRef(this.cache,$.extensions[this.name].light)}}_loadLight(J){let X=this.parser,Z="light:"+J,Y=X.cache.get(Z);if(Y)return Y;let $=X.json,q=(($.extensions&&$.extensions[this.name]||{}).lights||[])[J],W,E=new v(16777215);if(q.color!==void 0)E.setRGB(q.color[0],q.color[1],q.color[2],k);let U=q.range!==void 0?q.range:0;switch(q.type){case"directional":W=new $X(E),W.target.position.set(0,0,-1),W.add(W.target);break;case"point":W=new YX(E),W.distance=U;break;case"spot":W=new XX(E),W.distance=U,q.spot=q.spot||{},q.spot.innerConeAngle=q.spot.innerConeAngle!==void 0?q.spot.innerConeAngle:0,q.spot.outerConeAngle=q.spot.outerConeAngle!==void 0?q.spot.outerConeAngle:Math.PI/4,W.angle=q.spot.outerConeAngle,W.penumbra=1-q.spot.innerConeAngle/q.spot.outerConeAngle,W.target.position.set(0,0,-1),W.add(W.target);break;default:throw Error("THREE.GLTFLoader: Unexpected light type: "+q.type)}if(W.position.set(0,0,0),T(W,q),q.intensity!==void 0)W.intensity=q.intensity;return W.name=X.createUniqueName(q.name||"light_"+J),Y=Promise.resolve(W),X.cache.add(Z,Y),Y}getDependency(J,X){if(J!=="light")return;return this._loadLight(X)}createNodeAttachment(J){let X=this,Z=this.parser,$=Z.json.nodes[J],Q=($.extensions&&$.extensions[this.name]||{}).light;if(Q===void 0)return null;return this._loadLight(Q).then(function(q){return Z._getNodeRef(X.cache,Q,q)})}}class WX{constructor(){this.name=K.KHR_MATERIALS_UNLIT}getMaterialType(){return h}extendParams(J,X,Z){let Y=[];J.color=new v(1,1,1),J.opacity=1;let $=X.pbrMetallicRoughness;if($){if(Array.isArray($.baseColorFactor)){let H=$.baseColorFactor;J.color.setRGB(H[0],H[1],H[2],k),J.opacity=H[3]}if($.baseColorTexture!==void 0)Y.push(Z.assignTexture(J,"map",$.baseColorTexture,f))}return Promise.all(Y)}}class EX{constructor(J){this.parser=J,this.name=K.KHR_MATERIALS_EMISSIVE_STRENGTH}extendMaterialParams(J,X){let Z=P(this.parser,J,this.name);if(Z===null)return Promise.resolve();if(Z.emissiveStrength!==void 0)X.emissiveIntensity=Z.emissiveStrength;return Promise.resolve()}}class UX{constructor(J){this.parser=J,this.name=K.KHR_MATERIALS_CLEARCOAT}getMaterialType(J){return P(this.parser,J,this.name)!==null?N:null}extendMaterialParams(J,X){let Z=P(this.parser,J,this.name);if(Z===null)return Promise.resolve();let Y=[];if(Z.clearcoatFactor!==void 0)X.clearcoat=Z.clearcoatFactor;if(Z.clearcoatTexture!==void 0)Y.push(this.parser.assignTexture(X,"clearcoatMap",Z.clearcoatTexture));if(Z.clearcoatRoughnessFactor!==void 0)X.clearcoatRoughness=Z.clearcoatRoughnessFactor;if(Z.clearcoatRoughnessTexture!==void 0)Y.push(this.parser.assignTexture(X,"clearcoatRoughnessMap",Z.clearcoatRoughnessTexture));if(Z.clearcoatNormalTexture!==void 0){if(Y.push(this.parser.assignTexture(X,"clearcoatNormalMap",Z.clearcoatNormalTexture)),Z.clearcoatNormalTexture.scale!==void 0){let $=Z.clearcoatNormalTexture.scale;X.clearcoatNormalScale=new KJ($,$)}}return Promise.all(Y)}}class LX{constructor(J){this.parser=J,this.name=K.KHR_MATERIALS_DISPERSION}getMaterialType(J){return P(this.parser,J,this.name)!==null?N:null}extendMaterialParams(J,X){let Z=P(this.parser,J,this.name);if(Z===null)return Promise.resolve();return X.dispersion=Z.dispersion!==void 0?Z.dispersion:0,Promise.resolve()}}class OX{constructor(J){this.parser=J,this.name=K.KHR_MATERIALS_IRIDESCENCE}getMaterialType(J){return P(this.parser,J,this.name)!==null?N:null}extendMaterialParams(J,X){let Z=P(this.parser,J,this.name);if(Z===null)return Promise.resolve();let Y=[];if(Z.iridescenceFactor!==void 0)X.iridescence=Z.iridescenceFactor;if(Z.iridescenceTexture!==void 0)Y.push(this.parser.assignTexture(X,"iridescenceMap",Z.iridescenceTexture));if(Z.iridescenceIor!==void 0)X.iridescenceIOR=Z.iridescenceIor;if(X.iridescenceThicknessRange===void 0)X.iridescenceThicknessRange=[100,400];if(Z.iridescenceThicknessMinimum!==void 0)X.iridescenceThicknessRange[0]=Z.iridescenceThicknessMinimum;if(Z.iridescenceThicknessMaximum!==void 0)X.iridescenceThicknessRange[1]=Z.iridescenceThicknessMaximum;if(Z.iridescenceThicknessTexture!==void 0)Y.push(this.parser.assignTexture(X,"iridescenceThicknessMap",Z.iridescenceThicknessTexture));return Promise.all(Y)}}class FX{constructor(J){this.parser=J,this.name=K.KHR_MATERIALS_SHEEN}getMaterialType(J){return P(this.parser,J,this.name)!==null?N:null}extendMaterialParams(J,X){let Z=P(this.parser,J,this.name);if(Z===null)return Promise.resolve();let Y=[];if(X.sheenColor=new v(0,0,0),X.sheenRoughness=0,X.sheen=1,Z.sheenColorFactor!==void 0){let $=Z.sheenColorFactor;X.sheenColor.setRGB($[0],$[1],$[2],k)}if(Z.sheenRoughnessFactor!==void 0)X.sheenRoughness=Z.sheenRoughnessFactor;if(Z.sheenColorTexture!==void 0)Y.push(this.parser.assignTexture(X,"sheenColorMap",Z.sheenColorTexture,f));if(Z.sheenRoughnessTexture!==void 0)Y.push(this.parser.assignTexture(X,"sheenRoughnessMap",Z.sheenRoughnessTexture));return Promise.all(Y)}}class GX{constructor(J){this.parser=J,this.name=K.KHR_MATERIALS_TRANSMISSION}getMaterialType(J){return P(this.parser,J,this.name)!==null?N:null}extendMaterialParams(J,X){let Z=P(this.parser,J,this.name);if(Z===null)return Promise.resolve();let Y=[];if(Z.transmissionFactor!==void 0)X.transmission=Z.transmissionFactor;if(Z.transmissionTexture!==void 0)Y.push(this.parser.assignTexture(X,"transmissionMap",Z.transmissionTexture));return Promise.all(Y)}}class KX{constructor(J){this.parser=J,this.name=K.KHR_MATERIALS_VOLUME}getMaterialType(J){return P(this.parser,J,this.name)!==null?N:null}extendMaterialParams(J,X){let Z=P(this.parser,J,this.name);if(Z===null)return Promise.resolve();let Y=[];if(X.thickness=Z.thicknessFactor!==void 0?Z.thicknessFactor:0,Z.thicknessTexture!==void 0)Y.push(this.parser.assignTexture(X,"thicknessMap",Z.thicknessTexture));X.attenuationDistance=Z.attenuationDistance||1/0;let $=Z.attenuationColor||[1,1,1];return X.attenuationColor=new v().setRGB($[0],$[1],$[2],k),Promise.all(Y)}}class CX{constructor(J){this.parser=J,this.name=K.KHR_MATERIALS_IOR}getMaterialType(J){return P(this.parser,J,this.name)!==null?N:null}extendMaterialParams(J,X){let Z=P(this.parser,J,this.name);if(Z===null)return Promise.resolve();return X.ior=Z.ior!==void 0?Z.ior:1.5,Promise.resolve()}}class RX{constructor(J){this.parser=J,this.name=K.KHR_MATERIALS_SPECULAR}getMaterialType(J){return P(this.parser,J,this.name)!==null?N:null}extendMaterialParams(J,X){let Z=P(this.parser,J,this.name);if(Z===null)return Promise.resolve();let Y=[];if(X.specularIntensity=Z.specularFactor!==void 0?Z.specularFactor:1,Z.specularTexture!==void 0)Y.push(this.parser.assignTexture(X,"specularIntensityMap",Z.specularTexture));let $=Z.specularColorFactor||[1,1,1];if(X.specularColor=new v().setRGB($[0],$[1],$[2],k),Z.specularColorTexture!==void 0)Y.push(this.parser.assignTexture(X,"specularColorMap",Z.specularColorTexture,f));return Promise.all(Y)}}class zX{constructor(J){this.parser=J,this.name=K.EXT_MATERIALS_BUMP}getMaterialType(J){return P(this.parser,J,this.name)!==null?N:null}extendMaterialParams(J,X){let Z=P(this.parser,J,this.name);if(Z===null)return Promise.resolve();let Y=[];if(X.bumpScale=Z.bumpFactor!==void 0?Z.bumpFactor:1,Z.bumpTexture!==void 0)Y.push(this.parser.assignTexture(X,"bumpMap",Z.bumpTexture));return Promise.all(Y)}}class _X{constructor(J){this.parser=J,this.name=K.KHR_MATERIALS_ANISOTROPY}getMaterialType(J){return P(this.parser,J,this.name)!==null?N:null}extendMaterialParams(J,X){let Z=P(this.parser,J,this.name);if(Z===null)return Promise.resolve();let Y=[];if(Z.anisotropyStrength!==void 0)X.anisotropy=Z.anisotropyStrength;if(Z.anisotropyRotation!==void 0)X.anisotropyRotation=Z.anisotropyRotation;if(Z.anisotropyTexture!==void 0)Y.push(this.parser.assignTexture(X,"anisotropyMap",Z.anisotropyTexture));return Promise.all(Y)}}class BX{constructor(J){this.parser=J,this.name=K.KHR_TEXTURE_BASISU}loadTexture(J){let X=this.parser,Z=X.json,Y=Z.textures[J];if(!Y.extensions||!Y.extensions[this.name])return null;let $=Y.extensions[this.name],H=X.options.ktx2Loader;if(!H)if(Z.extensionsRequired&&Z.extensionsRequired.indexOf(this.name)>=0)throw Error("THREE.GLTFLoader: setKTX2Loader must be called before loading KTX2 textures");else return null;return X.loadTextureImage(J,$.source,H)}}class PX{constructor(J){this.parser=J,this.name=K.EXT_TEXTURE_WEBP}loadTexture(J){let X=this.name,Z=this.parser,Y=Z.json,$=Y.textures[J];if(!$.extensions||!$.extensions[X])return null;let H=$.extensions[X],Q=Y.images[H.source],q=Z.textureLoader;if(Q.uri){let W=Z.options.manager.getHandler(Q.uri);if(W!==null)q=W}return Z.loadTextureImage(J,H.source,q)}}class VX{constructor(J){this.parser=J,this.name=K.EXT_TEXTURE_AVIF}loadTexture(J){let X=this.name,Z=this.parser,Y=Z.json,$=Y.textures[J];if(!$.extensions||!$.extensions[X])return null;let H=$.extensions[X],Q=Y.images[H.source],q=Z.textureLoader;if(Q.uri){let W=Z.options.manager.getHandler(Q.uri);if(W!==null)q=W}return Z.loadTextureImage(J,H.source,q)}}class EJ{constructor(J,X){this.name=X,this.parser=J}loadBufferView(J){let X=this.parser.json,Z=X.bufferViews[J];if(Z.extensions&&Z.extensions[this.name]){let Y=Z.extensions[this.name],$=this.parser.getDependency("buffer",Y.buffer),H=this.parser.options.meshoptDecoder;if(!H||!H.supported)if(X.extensionsRequired&&X.extensionsRequired.indexOf(this.name)>=0)throw Error("THREE.GLTFLoader: setMeshoptDecoder must be called before loading compressed files");else return null;return $.then(function(Q){let q=Y.byteOffset||0,W=Y.byteLength||0,E=Y.count,U=Y.byteStride,L=new Uint8Array(Q,q,W);if(H.decodeGltfBufferAsync)return H.decodeGltfBufferAsync(E,U,L,Y.mode,Y.filter).then(function(O){return O.buffer});else return H.ready.then(function(){let O=new ArrayBuffer(E*U);return H.decodeGltfBuffer(new Uint8Array(O),E,U,L,Y.mode,Y.filter),O})})}else return null}}class SX{constructor(J){this.name=K.EXT_MESH_GPU_INSTANCING,this.parser=J}createNodeMesh(J){let X=this.parser.json,Z=X.nodes[J];if(!Z.extensions||!Z.extensions[this.name]||Z.mesh===void 0)return null;let Y=X.meshes[Z.mesh];for(let W of Y.primitives)if(W.mode!==S.TRIANGLES&&W.mode!==S.TRIANGLE_STRIP&&W.mode!==S.TRIANGLE_FAN&&W.mode!==void 0)return null;let H=Z.extensions[this.name].attributes,Q=[],q={};for(let W in H)Q.push(this.parser.getDependency("accessor",H[W]).then((E)=>{return q[W]=E,q[W]}));if(Q.length<1)return null;return Q.push(this.parser.createNodeMesh(J)),Promise.all(Q).then((W)=>{let 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Y)console.warn(`THREE.GLTFLoader: Converting vertex colors from "srgb-linear" to "${$J.workingColorSpace}" not supported.`);return T(J,X),uX(J,X,Z),Promise.all($).then(function(){return X.targets!==void 0?xX(J,X.targets,Z):J})}export{vX as a};