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cn(this,this),this.check()}invert(){return on(this,this),this.check()}lerp(t,n,r){return r===void 0?this.lerp(this,t,n):(hn(this,t,n,r),this.check())}multiplyRight(t){return Yt(this,this,t),this.check()}multiplyLeft(t){return Yt(this,t,this),this.check()}normalize(){let t=this.len(),n=t>0?1/t:0;return this[0]=this[0]*n,this[1]=this[1]*n,this[2]=this[2]*n,this[3]=this[3]*n,t===0&&(this[3]=1),this.check()}rotateX(t){return en(this,this,t),this.check()}rotateY(t){return nn(this,this,t),this.check()}rotateZ(t){return rn(this,this,t),this.check()}scale(t){return fn(this,this,t),this.check()}slerp(t,n,r){let s,i,o;switch(arguments.length){case 1:({start:s=Cr,target:i,ratio:o}=t);break;case 2:s=this,i=t,o=n;break;default:s=t,i=n,o=r}return et(this,s,i,o),this.check()}transformVector4(t,n=new G){return Qe(n,t,this),H(n,4)}lengthSq(){return this.lengthSquared()}setFromAxisAngle(t,n){return this.setAxisAngle(t,n)}premultiply(t){return this.multiplyLeft(t)}multiply(t){return this.multiplyRight(t)}};var rt=D(j(),1);var Br={SCALAR:1,VEC2:2,VEC3:3,VEC4:4,MAT2:4,MAT3:9,MAT4:16},zr={5120:Int8Array,5121:Uint8Array,5122:Int16Array,5123:Uint16Array,5125:Uint32Array,5126:Float32Array},Wt=class{name;startTime=0;playing=!0;speed=1;channels=[];constructor(t){Object.assign(this,t)}animate(t){if(!this.playing)return;let r=(t/1e3-this.startTime)*this.speed;this.channels.forEach(({sampler:s,target:i,path:o})=>{Dr(r,s,i,o),Fr(i,i._node)})}},W=class{animations;constructor(t){this.animations=t.animations.map((n,r)=>{let s=n.name||`Animation-${r}`,i=n.samplers.map(({input:c,interpolation:a="LINEAR",output:f})=>({input:dn(t.accessors[c]),interpolation:a,output:dn(t.accessors[f])})),o=n.channels.map(({sampler:c,target:a})=>({sampler:i[c],target:t.nodes[a.node],path:a.path}));return new Wt({name:s,channels:o})})}animate(t){this.setTime(t)}setTime(t){this.animations.forEach(n=>n.animate(t))}getAnimations(){return this.animations}};function dn(e){if(!e._animation){let t=zr[e.componentType],n=Br[e.type],r=n*e.count,{buffer:s,byteOffset:i}=e.bufferView.data,o=new t(s,i+(e.byteOffset||0),r);if(n===1)e._animation=Array.from(o);else{let c=[];for(let a=0;a<o.length;a+=n)c.push(Array.from(o.slice(a,a+n)));e._animation=c}}return e._animation}var kr=new F;function Fr(e,t){if(t.matrix.identity(),e.translation&&t.matrix.translate(e.translation),e.rotation){let n=kr.fromQuaternion(e.rotation);t.matrix.multiplyRight(n)}e.scale&&t.matrix.scale(e.scale)}var Gt=new nt;function Ur(e,t,n,r,s){if(t==="rotation"){Gt.slerp({start:n,target:r,ratio:s});for(let i=0;i<Gt.length;i++)e[t][i]=Gt[i]}else for(let i=0;i<n.length;i++)e[t][i]=s*r[i]+(1-s)*n[i]}function Vr(e,t,{p0:n,outTangent0:r,inTangent1:s,p1:i,tDiff:o,ratio:c}){for(let a=0;a<e[t].length;a++){let f=r[a]*o,l=s[a]*o;e[t][a]=(2*Math.pow(c,3)-3*Math.pow(c,2)+1)*n[a]+(Math.pow(c,3)-2*Math.pow(c,2)+c)*f+(-2*Math.pow(c,3)+3*Math.pow(c,2))*i[a]+(Math.pow(c,3)-Math.pow(c,2))*l}}function qr(e,t,n){for(let r=0;r<n.length;r++)e[t][r]=n[r]}function Dr(e,{input:t,interpolation:n,output:r},s,i){let o=t[t.length-1],c=e%o,a=t.findIndex(p=>p>=c),f=Math.max(0,a-1);if(!Array.isArray(s[i]))switch(i){case"translation":s[i]=[0,0,0];break;case"rotation":s[i]=[0,0,0,1];break;case"scale":s[i]=[1,1,1];break;default:rt.log.warn(`Bad animation path ${i}`)()}(0,rt.assert)(s[i].length===r[f].length);let l=t[f],h=t[a];switch(n){case"STEP":qr(s,i,r[f]);break;case"LINEAR":if(h>l){let p=(c-l)/(h-l);Ur(s,i,r[f],r[a],p)}break;case"CUBICSPLINE":if(h>l){let p=(c-l)/(h-l),m=h-l,x=r[3*f+1],g=r[3*f+2],d=r[3*a+0],S=r[3*a+1];Vr(s,i,{p0:x,outTangent0:g,inTangent1:d,p1:S,tDiff:m,ratio:p})}break;default:rt.log.warn(`Interpolation ${n} not supported`)();break}}var En=D(j(),1);var $t=`#if (defined(SHADER_TYPE_FRAGMENT) && defined(LIGHTING_FRAGMENT)) || (defined(SHADER_TYPE_VERTEX) && defined(LIGHTING_VERTEX))
struct AmbientLight {
vec3 color;
};
struct PointLight {
vec3 color;
vec3 position;
vec3 attenuation;
};
struct DirectionalLight {
vec3 color;
vec3 direction;
};
uniform AmbientLight lighting_uAmbientLight;
uniform PointLight lighting_uPointLight[MAX_LIGHTS];
uniform DirectionalLight lighting_uDirectionalLight[MAX_LIGHTS];
uniform int lighting_uPointLightCount;
uniform int lighting_uDirectionalLightCount;
uniform bool lighting_uEnabled;
float getPointLightAttenuation(PointLight pointLight, float distance) {
return pointLight.attenuation.x
+ pointLight.attenuation.y * distance
+ pointLight.attenuation.z * distance * distance;
}
#endif
`;var Yr={lightSources:{}};function Xt(e={}){let{color:t=[0,0,0],intensity:n=1}=e;return t.map(r=>r*n/255)}function Hr({ambientLight:e,pointLights:t=[],directionalLights:n=[]}){let r={};return e?r["lighting_uAmbientLight.color"]=Xt(e):r["lighting_uAmbientLight.color"]=[0,0,0],t.forEach((s,i)=>{r[`lighting_uPointLight[${i}].color`]=Xt(s),r[`lighting_uPointLight[${i}].position`]=s.position,r[`lighting_uPointLight[${i}].attenuation`]=s.attenuation||[1,0,0]}),r.lighting_uPointLightCount=t.length,n.forEach((s,i)=>{r[`lighting_uDirectionalLight[${i}].color`]=Xt(s),r[`lighting_uDirectionalLight[${i}].direction`]=s.direction}),r.lighting_uDirectionalLightCount=n.length,r}function Mn(e=Yr){if("lightSources"in e){let{ambientLight:t,pointLights:n,directionalLights:r}=e.lightSources||{};return t||n&&n.length>0||r&&r.length>0?Object.assign({},Hr({ambientLight:t,pointLights:n,directionalLights:r}),{lighting_uEnabled:!0}):{lighting_uEnabled:!1}}if("lights"in e){let t={pointLights:[],directionalLights:[]};for(let n of e.lights||[])switch(n.type){case"ambient":t.ambientLight=n;break;case"directional":t.directionalLights?.push(n);break;case"point":t.pointLights?.push(n);break;default:}return Mn({lightSources:t})}return{}}var un={name:"lights",vs:$t,fs:$t,getUniforms:Mn,defines:{MAX_LIGHTS:3}};var _n=`uniform mat4 u_MVPMatrix;
uniform mat4 u_ModelMatrix;
uniform mat4 u_NormalMatrix;
out vec3 pbr_vPosition;
out vec2 pbr_vUV;
#ifdef HAS_NORMALS
# ifdef HAS_TANGENTS
out mat3 pbr_vTBN;
# else
out vec3 pbr_vNormal;
# endif
#endif
void pbr_setPositionNormalTangentUV(vec4 position, vec4 normal, vec4 tangent, vec2 uv)
{
vec4 pos = u_ModelMatrix * position;
pbr_vPosition = vec3(pos.xyz) / pos.w;
#ifdef HAS_NORMALS
#ifdef HAS_TANGENTS
vec3 normalW = normalize(vec3(u_NormalMatrix * vec4(normal.xyz, 0.0)));
vec3 tangentW = normalize(vec3(u_ModelMatrix * vec4(tangent.xyz, 0.0)));
vec3 bitangentW = cross(normalW, tangentW) * tangent.w;
pbr_vTBN = mat3(tangentW, bitangentW, normalW);
#else
pbr_vNormal = normalize(vec3(u_ModelMatrix * vec4(normal.xyz, 0.0)));
#endif
#endif
#ifdef HAS_UV
pbr_vUV = uv;
#else
pbr_vUV = vec2(0.,0.);
#endif
}
`;var An=`precision highp float;
uniform bool pbr_uUnlit;
#ifdef USE_IBL
uniform samplerCube u_DiffuseEnvSampler;
uniform samplerCube u_SpecularEnvSampler;
uniform sampler2D u_brdfLUT;
uniform vec2 u_ScaleIBLAmbient;
#endif
#ifdef HAS_BASECOLORMAP
uniform sampler2D u_BaseColorSampler;
#endif
#ifdef HAS_NORMALMAP
uniform sampler2D u_NormalSampler;
uniform float u_NormalScale;
#endif
#ifdef HAS_EMISSIVEMAP
uniform sampler2D u_EmissiveSampler;
uniform vec3 u_EmissiveFactor;
#endif
#ifdef HAS_METALROUGHNESSMAP
uniform sampler2D u_MetallicRoughnessSampler;
#endif
#ifdef HAS_OCCLUSIONMAP
uniform sampler2D u_OcclusionSampler;
uniform float u_OcclusionStrength;
#endif
#ifdef ALPHA_CUTOFF
uniform float u_AlphaCutoff;
#endif
uniform vec2 u_MetallicRoughnessValues;
uniform vec4 u_BaseColorFactor;
uniform vec3 u_Camera;
#ifdef PBR_DEBUG
uniform vec4 u_ScaleDiffBaseMR;
uniform vec4 u_ScaleFGDSpec;
#endif
in vec3 pbr_vPosition;
in vec2 pbr_vUV;
#ifdef HAS_NORMALS
#ifdef HAS_TANGENTS
in mat3 pbr_vTBN;
#else
in vec3 pbr_vNormal;
#endif
#endif
struct PBRInfo
{
float NdotL;
float NdotV;
float NdotH;
float LdotH;
float VdotH;
float perceptualRoughness;
float metalness;
vec3 reflectance0;
vec3 reflectance90;
float alphaRoughness;
vec3 diffuseColor;
vec3 specularColor;
vec3 n;
vec3 v;
};
const float M_PI = 3.141592653589793;
const float c_MinRoughness = 0.04;
vec4 SRGBtoLINEAR(vec4 srgbIn)
{
#ifdef MANUAL_SRGB
#ifdef SRGB_FAST_APPROXIMATION
vec3 linOut = pow(srgbIn.xyz,vec3(2.2));
#else
vec3 bLess = step(vec3(0.04045),srgbIn.xyz);
vec3 linOut = mix( srgbIn.xyz/vec3(12.92), pow((srgbIn.xyz+vec3(0.055))/vec3(1.055),vec3(2.4)), bLess );
#endif
return vec4(linOut,srgbIn.w);;
#else
return srgbIn;
#endif
}
vec3 getNormal()
{
#ifndef HAS_TANGENTS
vec3 pos_dx = dFdx(pbr_vPosition);
vec3 pos_dy = dFdy(pbr_vPosition);
vec3 tex_dx = dFdx(vec3(pbr_vUV, 0.0));
vec3 tex_dy = dFdy(vec3(pbr_vUV, 0.0));
vec3 t = (tex_dy.t * pos_dx - tex_dx.t * pos_dy) / (tex_dx.s * tex_dy.t - tex_dy.s * tex_dx.t);
#ifdef HAS_NORMALS
vec3 ng = normalize(pbr_vNormal);
#else
vec3 ng = cross(pos_dx, pos_dy);
#endif
t = normalize(t - ng * dot(ng, t));
vec3 b = normalize(cross(ng, t));
mat3 tbn = mat3(t, b, ng);
#else
mat3 tbn = pbr_vTBN;
#endif
#ifdef HAS_NORMALMAP
vec3 n = texture(u_NormalSampler, pbr_vUV).rgb;
n = normalize(tbn * ((2.0 * n - 1.0) * vec3(u_NormalScale, u_NormalScale, 1.0)));
#else
vec3 n = normalize(tbn[2].xyz);
#endif
return n;
}
#ifdef USE_IBL
vec3 getIBLContribution(PBRInfo pbrInputs, vec3 n, vec3 reflection)
{
float mipCount = 9.0;
float lod = (pbrInputs.perceptualRoughness * mipCount);
vec3 brdf = SRGBtoLINEAR(texture(u_brdfLUT,
vec2(pbrInputs.NdotV, 1.0 - pbrInputs.perceptualRoughness))).rgb;
vec3 diffuseLight = SRGBtoLINEAR(textureCube(u_DiffuseEnvSampler, n)).rgb;
#ifdef USE_TEX_LOD
vec3 specularLight = SRGBtoLINEAR(textureCubeLod(u_SpecularEnvSampler, reflection, lod)).rgb;
#else
vec3 specularLight = SRGBtoLINEAR(textureCube(u_SpecularEnvSampler, reflection)).rgb;
#endif
vec3 diffuse = diffuseLight * pbrInputs.diffuseColor;
vec3 specular = specularLight * (pbrInputs.specularColor * brdf.x + brdf.y);
diffuse *= u_ScaleIBLAmbient.x;
specular *= u_ScaleIBLAmbient.y;
return diffuse + specular;
}
#endif
vec3 diffuse(PBRInfo pbrInputs)
{
return pbrInputs.diffuseColor / M_PI;
}
vec3 specularReflection(PBRInfo pbrInputs)
{
return pbrInputs.reflectance0 +
(pbrInputs.reflectance90 - pbrInputs.reflectance0) *
pow(clamp(1.0 - pbrInputs.VdotH, 0.0, 1.0), 5.0);
}
float geometricOcclusion(PBRInfo pbrInputs)
{
float NdotL = pbrInputs.NdotL;
float NdotV = pbrInputs.NdotV;
float r = pbrInputs.alphaRoughness;
float attenuationL = 2.0 * NdotL / (NdotL + sqrt(r * r + (1.0 - r * r) * (NdotL * NdotL)));
float attenuationV = 2.0 * NdotV / (NdotV + sqrt(r * r + (1.0 - r * r) * (NdotV * NdotV)));
return attenuationL * attenuationV;
}
float microfacetDistribution(PBRInfo pbrInputs)
{
float roughnessSq = pbrInputs.alphaRoughness * pbrInputs.alphaRoughness;
float f = (pbrInputs.NdotH * roughnessSq - pbrInputs.NdotH) * pbrInputs.NdotH + 1.0;
return roughnessSq / (M_PI * f * f);
}
void PBRInfo_setAmbientLight(inout PBRInfo pbrInputs) {
pbrInputs.NdotL = 1.0;
pbrInputs.NdotH = 0.0;
pbrInputs.LdotH = 0.0;
pbrInputs.VdotH = 1.0;
}
void PBRInfo_setDirectionalLight(inout PBRInfo pbrInputs, vec3 lightDirection) {
vec3 n = pbrInputs.n;
vec3 v = pbrInputs.v;
vec3 l = normalize(lightDirection);
vec3 h = normalize(l+v);
pbrInputs.NdotL = clamp(dot(n, l), 0.001, 1.0);
pbrInputs.NdotH = clamp(dot(n, h), 0.0, 1.0);
pbrInputs.LdotH = clamp(dot(l, h), 0.0, 1.0);
pbrInputs.VdotH = clamp(dot(v, h), 0.0, 1.0);
}
void PBRInfo_setPointLight(inout PBRInfo pbrInputs, PointLight pointLight) {
vec3 light_direction = normalize(pointLight.position - pbr_vPosition);
PBRInfo_setDirectionalLight(pbrInputs, light_direction);
}
vec3 calculateFinalColor(PBRInfo pbrInputs, vec3 lightColor) {
vec3 F = specularReflection(pbrInputs);
float G = geometricOcclusion(pbrInputs);
float D = microfacetDistribution(pbrInputs);
vec3 diffuseContrib = (1.0 - F) * diffuse(pbrInputs);
vec3 specContrib = F * G * D / (4.0 * pbrInputs.NdotL * pbrInputs.NdotV);
return pbrInputs.NdotL * lightColor * (diffuseContrib + specContrib);
}
vec4 pbr_filterColor(vec4 colorUnused)
{
#ifdef HAS_BASECOLORMAP
vec4 baseColor = SRGBtoLINEAR(texture(u_BaseColorSampler, pbr_vUV)) * u_BaseColorFactor;
#else
vec4 baseColor = u_BaseColorFactor;
#endif
#ifdef ALPHA_CUTOFF
if (baseColor.a < u_AlphaCutoff) {
discard;
}
#endif
vec3 color = vec3(0, 0, 0);
if(pbr_uUnlit){
color.rgb = baseColor.rgb;
}
else{
float perceptualRoughness = u_MetallicRoughnessValues.y;
float metallic = u_MetallicRoughnessValues.x;
#ifdef HAS_METALROUGHNESSMAP
vec4 mrSample = texture(u_MetallicRoughnessSampler, pbr_vUV);
perceptualRoughness = mrSample.g * perceptualRoughness;
metallic = mrSample.b * metallic;
#endif
perceptualRoughness = clamp(perceptualRoughness, c_MinRoughness, 1.0);
metallic = clamp(metallic, 0.0, 1.0);
float alphaRoughness = perceptualRoughness * perceptualRoughness;
vec3 f0 = vec3(0.04);
vec3 diffuseColor = baseColor.rgb * (vec3(1.0) - f0);
diffuseColor *= 1.0 - metallic;
vec3 specularColor = mix(f0, baseColor.rgb, metallic);
float reflectance = max(max(specularColor.r, specularColor.g), specularColor.b);
float reflectance90 = clamp(reflectance * 25.0, 0.0, 1.0);
vec3 specularEnvironmentR0 = specularColor.rgb;
vec3 specularEnvironmentR90 = vec3(1.0, 1.0, 1.0) * reflectance90;
vec3 n = getNormal();
vec3 v = normalize(u_Camera - pbr_vPosition);
float NdotV = clamp(abs(dot(n, v)), 0.001, 1.0);
vec3 reflection = -normalize(reflect(v, n));
PBRInfo pbrInputs = PBRInfo(
0.0,
NdotV,
0.0,
0.0,
0.0,
perceptualRoughness,
metallic,
specularEnvironmentR0,
specularEnvironmentR90,
alphaRoughness,
diffuseColor,
specularColor,
n,
v
);
#ifdef USE_LIGHTS
PBRInfo_setAmbientLight(pbrInputs);
color += calculateFinalColor(pbrInputs, lighting_uAmbientLight.color);
for(int i = 0; i < lighting_uDirectionalLightCount; i++) {
if (i < lighting_uDirectionalLightCount) {
PBRInfo_setDirectionalLight(pbrInputs, lighting_uDirectionalLight[i].direction);
color += calculateFinalColor(pbrInputs, lighting_uDirectionalLight[i].color);
}
}
for(int i = 0; i < lighting_uPointLightCount; i++) {
if (i < lighting_uPointLightCount) {
PBRInfo_setPointLight(pbrInputs, lighting_uPointLight[i]);
float attenuation = getPointLightAttenuation(lighting_uPointLight[i], distance(lighting_uPointLight[i].position, pbr_vPosition));
color += calculateFinalColor(pbrInputs, lighting_uPointLight[i].color / attenuation);
}
}
#endif
#ifdef USE_IBL
color += getIBLContribution(pbrInputs, n, reflection);
#endif
#ifdef HAS_OCCLUSIONMAP
float ao = texture(u_OcclusionSampler, pbr_vUV).r;
color = mix(color, color * ao, u_OcclusionStrength);
#endif
#ifdef HAS_EMISSIVEMAP
vec3 emissive = SRGBtoLINEAR(texture(u_EmissiveSampler, pbr_vUV)).rgb * u_EmissiveFactor;
color += emissive;
#endif
#ifdef PBR_DEBUG
color = mix(color, baseColor.rgb, u_ScaleDiffBaseMR.y);
color = mix(color, vec3(metallic), u_ScaleDiffBaseMR.z);
color = mix(color, vec3(perceptualRoughness), u_ScaleDiffBaseMR.w);
#endif
}
return vec4(pow(color,vec3(1.0/2.2)), baseColor.a);
}
`;var jt={name:"pbr",vs:_n,fs:An,defines:{LIGHTING_FRAGMENT:1},dependencies:[un]};var Et=D(Pt(),1);var Gr=`
#pragma vscode_glsllint_stage: vert
#if (__VERSION__ < 300)
  #define _attr attribute
#else
  #define _attr in
#endif

  // _attr vec4 POSITION;
  _attr vec4 positions;

  #ifdef HAS_NORMALS
    // _attr vec4 NORMAL;
    _attr vec4 normals;
  #endif

  #ifdef HAS_TANGENTS
    _attr vec4 TANGENT;
  #endif

  #ifdef HAS_UV
    // _attr vec2 TEXCOORD_0;
    _attr vec2 texCoords;
  #endif

  void main(void) {
    vec4 _NORMAL = vec4(0.);
    vec4 _TANGENT = vec4(0.);
    vec2 _TEXCOORD_0 = vec2(0.);

    #ifdef HAS_NORMALS
      _NORMAL = normals;
    #endif

    #ifdef HAS_TANGENTS
      _TANGENT = TANGENT;
    #endif

    #ifdef HAS_UV
      _TEXCOORD_0 = texCoords;
    #endif

    pbr_setPositionNormalTangentUV(positions, _NORMAL, _TANGENT, _TEXCOORD_0);
    gl_Position = u_MVPMatrix * positions;
  }
`,Wr=`
#pragma vscode_glsllint_stage: frag
#if (__VERSION__ < 300)
  #define fragmentColor gl_FragColor
#else
  out vec4 fragmentColor;
#endif

  void main(void) {
    vec3 pos = pbr_vPosition;
    fragmentColor = pbr_filterColor(vec4(1.0));
  }
`;function yn(e,t){let{id:n,geometry:r,material:s,vertexCount:i,materialOptions:o,modelOptions:c}=t,a=at(e,s,r.attributes,o);En.log.info(4,"createGLTFModel defines: ",a.defines)();let f=[],l={depthWriteEnabled:!0,depthCompare:"less",depthFormat:"depth24plus",cullMode:"back"},h={id:n,geometry:r,topology:r.topology,vertexCount:i,modules:[jt],vs:Sn(e,Gr),fs:Sn(e,Wr),...c,bindings:{...a.bindings,...c.bindings},defines:{...a.defines,...c.defines},parameters:{...l,...a.parameters,...c.parameters},uniforms:{...a.uniforms,...c.uniforms}},p=new Et.Model(e,h);return new Et.ModelNode({managedResources:f,model:p})}function Sn(e,t){return`#version 300 es
${t}`}var $r={modelOptions:{},pbrDebug:!1,imageBasedLightingEnvironment:null,lights:!0,useTangents:!1},yt=class{device;options;gltf;constructor(t,n={}){this.device=t,this.options={...$r,...n}}instantiate(t){return this.gltf=t,(t.scenes||[]).map(r=>this.createScene(r))}createAnimator(){return Array.isArray(this.gltf.animations)?new W(this.gltf):null}createScene(t){let r=(t.nodes||[]).map(i=>this.createNode(i));return new $.GroupNode({id:t.name||t.id,children:r})}createNode(t){if(!t._node){let r=(t.children||[]).map(i=>this.createNode(i));t.mesh&&r.push(this.createMesh(t.mesh));let s=new $.GroupNode({id:t.name||t.id,children:r});if(t.matrix)s.setMatrix(t.matrix);else{if(s.matrix.identity(),t.translation&&s.matrix.translate(t.translation),t.rotation){let i=new F().fromQuaternion(t.rotation);s.matrix.multiplyRight(i)}t.scale&&s.matrix.scale(t.scale)}t._node=s}return t._node}createMesh(t){if(!t._mesh){let r=(t.primitives||[]).map((i,o)=>this.createPrimitive(i,o,t)),s=new $.GroupNode({id:t.name||t.id,children:r});t._mesh=s}return t._mesh}createPrimitive(t,n,r){let s=t.name||`${r.name||r.id}-primitive-${n}`,i=Xr(t.mode||4),o=t.indices?t.indices.count:this.getVertexCount(t.attributes),c=yn(this.device,{id:s,geometry:this.createGeometry(s,t,i),material:t.material,materialOptions:this.options,modelOptions:this.options.modelOptions,vertexCount:o});return c.bounds=[t.attributes.POSITION.min,t.attributes.POSITION.max],c}getVertexCount(t){throw new Error("getVertexCount not implemented")}createGeometry(t,n,r){let s={};for(let[i,o]of Object.entries(n.attributes)){let{components:c,size:a,value:f}=o;s[i]={size:a??c,value:f}}return new $.Geometry({id:t,topology:r,indices:n.indices.value,attributes:s})}createBuffer(t,n){t.bufferView||(t.bufferView={});let{bufferView:r}=t;return r.lumaBuffers||(r.lumaBuffers={}),r.lumaBuffers[n]||(r.lumaBuffers[n]=this.device.createBuffer({id:`from-${r.id}`,data:r.data||t.value})),r.lumaBuffers[n]}createSampler(t){return t}needsPOT(){return!1}},U;(function(e){e[e.POINTS=0]="POINTS",e[e.LINES=1]="LINES",e[e.LINE_LOOP=2]="LINE_LOOP",e[e.LINE_STRIP=3]="LINE_STRIP",e[e.TRIANGLES=4]="TRIANGLES",e[e.TRIANGLE_STRIP=5]="TRIANGLE_STRIP",e[e.TRIANGLE_FAN=6]="TRIANGLE_FAN"})(U||(U={}));function Xr(e){switch(e){case U.POINTS:return"point-list";case U.LINES:return"line-list";case U.LINE_STRIP:return"line-strip";case U.LINE_LOOP:return"line-loop-webgl";case U.TRIANGLES:return"triangle-list";case U.TRIANGLE_STRIP:return"triangle-strip";case U.TRIANGLE_FAN:return"triangle-fan-webgl";default:throw new Error(e)}}function Tn(e,t,n){let r=new yt(e,n),s=r.instantiate(t),i=r.createAnimator();return{scenes:s,animator:i}}return bn(st);})();
      return __exports__;
      });