Intensity),this.reflectivity!==void 0&&(n.reflectivity=this.reflectivity),this.refractionRatio!==void 0&&(n.refractionRatio=this.refractionRatio),this.gradientMap&&this.gradientMap.isTexture&&(n.gradientMap=this.gradientMap.toJSON(t).uuid),this.transmission!==void 0&&(n.transmission=this.transmission),this.transmissionMap&&this.transmissionMap.isTexture&&(n.transmissionMap=this.transmissionMap.toJSON(t).uuid),this.thickness!==void 0&&(n.thickness=this.thickness),this.thicknessMap&&this.thicknessMap.isTexture&&(n.thicknessMap=this.thicknessMap.toJSON(t).uuid),this.attenuationDistance!==void 0&&(n.attenuationDistance=this.attenuationDistance),this.attenuationColor!==void 0&&(n.attenuationColor=this.attenuationColor.getHex()),this.size!==void 0&&(n.size=this.size),this.sizeAttenuation!==void 0&&(n.sizeAttenuation=this.sizeAttenuation),Array.isArray(this.clippingPlanes)&&this.clippingPlanes.length>0&&(n.clippingPlanes=this.clippingPlanes.map(r=>r.toJSON())),this.rotation!==void 0&&(n.rotation=this.rotation),this.depthPacking!==void 0&&(n.depthPacking=this.depthPacking),this.linewidth!==void 0&&(n.linewidth=this.linewidth),this.linecap!==void 0&&(n.linecap=this.linecap),this.linejoin!==void 0&&(n.linejoin=this.linejoin),this.dashSize!==void 0&&(n.dashSize=this.dashSize),this.gapSize!==void 0&&(n.gapSize=this.gapSize),this.scale!==void 0&&(n.scale=this.scale),this.wireframe!==void 0&&(n.wireframe=this.wireframe),this.wireframeLinewidth!==void 0&&(n.wireframeLinewidth=this.wireframeLinewidth),this.wireframeLinecap!==void 0&&(n.wireframeLinecap=this.wireframeLinecap),this.wireframeLinejoin!==void 0&&(n.wireframeLinejoin=this.wireframeLinejoin),this.flatShading!==void 0&&(n.flatShading=this.flatShading),this.fog!==void 0&&(n.fog=this.fog),Object.keys(this.userData).length>0&&(n.userData=this.userData);function i(r){let a=[];for(let o in r){let l=r[o];delete l.metadata,a.push(l)}return a}if(e){let r=i(t.textures),a=i(t.images);r.length>0&&(n.textures=r),a.length>0&&(n.images=a)}return n}fromJSON(t,e){if(t.uuid!==void 0&&(this.uuid=t.uuid),t.name!==void 0&&(this.name=t.name),t.color!==void 0&&this.color!==void 0&&this.color.setHex(t.color),t.roughness!==void 0&&(this.roughness=t.roughness),t.metalness!==void 0&&(this.metalness=t.metalness),t.sheen!==void 0&&(this.sheen=t.sheen),t.sheenColor!==void 0&&(this.sheenColor=new Mt().setHex(t.sheenColor)),t.sheenRoughness!==void 0&&(this.sheenRoughness=t.sheenRoughness),t.emissive!==void 0&&this.emissive!==void 0&&this.emissive.setHex(t.emissive),t.specular!==void 0&&this.specular!==void 0&&this.specular.setHex(t.specular),t.specularIntensity!==void 0&&(this.specularIntensity=t.specularIntensity),t.specularColor!==void 0&&this.specularColor!==void 0&&this.specularColor.setHex(t.specularColor),t.shininess!==void 0&&(this.shininess=t.shininess),t.clearcoat!==void 0&&(this.clearcoat=t.clearcoat),t.clearcoatRoughness!==void 0&&(this.clearcoatRoughness=t.clearcoatRoughness),t.dispersion!==void 0&&(this.dispersion=t.dispersion),t.retroreflectivity!==void 0&&(this.retroreflectivity=t.retroreflectivity),t.iridescence!==void 0&&(this.iridescence=t.iridescence),t.iridescenceIOR!==void 0&&(this.iridescenceIOR=t.iridescenceIOR),t.iridescenceThicknessRange!==void 0&&(this.iridescenceThicknessRange=t.iridescenceThicknessRange),t.transmission!==void 0&&(this.transmission=t.transmission),t.thickness!==void 0&&(this.thickness=t.thickness),t.attenuationDistance!==void 0&&(this.attenuationDistance=t.attenuationDistance),t.attenuationColor!==void 0&&this.attenuationColor!==void 0&&this.attenuationColor.setHex(t.attenuationColor),t.anisotropy!==void 0&&(this.anisotropy=t.anisotropy),t.anisotropyRotation!==void 0&&(this.anisotropyRotation=t.anisotropyRotation),t.fog!==void 0&&(this.fog=t.fog),t.flatShading!==void 0&&(this.flatShading=t.flatShading),t.blending!==void 0&&(this.blending=t.blending),t.combine!==void 0&&(this.combine=t.combine),t.side!==void 0&&(this.side=t.side),t.shadowSide!==void 0&&(this.shadowSide=t.shadowSide),t.opacity!==void 0&&(this.opacity=t.opacity),t.transparent!==void 0&&(this.transparent=t.transparent),t.alphaTest!==void 0&&(this.alphaTest=t.alphaTest),t.alphaHash!==void 0&&(this.alphaHash=t.alphaHash),t.depthFunc!==void 0&&(this.depthFunc=t.depthFunc),t.depthTest!==void 0&&(this.depthTest=t.depthTest),t.depthWrite!==void 0&&(this.depthWrite=t.depthWrite),t.colorWrite!==void 0&&(this.colorWrite=t.colorWrite),t.clippingPlanes!==void 0&&(this.clippingPlanes=t.clippingPlanes.map(n=>new yn().fromJSON(n))),t.clipIntersection!==void 0&&(this.clipIntersection=t.clipIntersection),t.clipShadows!==void 0&&(this.clipShadows=t.clipShadows),t.depthPacking!==void 0&&(this.depthPacking=t.depthPacking),t.blendSrc!==void 0&&(this.blendSrc=t.blendSrc),t.blendDst!==void 0&&(this.blendDst=t.blendDst),t.blendEquation!==void 0&&(this.blendEquation=t.blendEquation),t.blendSrcAlpha!==void 0&&(this.blendSrcAlpha=t.blendSrcAlpha),t.blendDstAlpha!==void 0&&(this.blendDst