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        `}),x=new d,S=new g(v,b);x.add(S);let C=e.getRenderTarget(),T=e.autoClear,te=e.xr.enabled,ne=e.shadowMap.enabled;_.texture.generateMipmaps=!0;try{e.xr.enabled=!1,e.shadowMap.enabled=!1,e.autoClear=!0,e.setRenderTarget(_),e.clear(),e.render(x,y)}finally{e.setRenderTarget(C),e.autoClear=T,e.xr.enabled=te,e.shadowMap.enabled=ne,v.dispose(),b.dispose(),x.remove(S)}return _.texture.name=`PMREM_Equirectangular_Texture_`+n.toFixed(2),_.texture.mapping=303,Se&&console.log(`[MaterialX] PMREM to Equirect Render Target:`,{width:_.width,height:_.height,mipmaps:_.texture.mipmaps?.length,roughness:n}),_}var Te=`_`,Ee=Te+`uaddressmode`,De=Te+`vaddressmode`,Oe=Te+`filtertype`,ke=`/`;function A(e,t){let n;if(e)n=[...e.data()];else{n=[];for(let e=0;e<t;++e)n.push(0)}return n}function j(e,t){let n=Array(t);if(e)for(let t=0;t<e.numRows();++t)for(let r=0;r<e.numColumns();++r)n.push(e.getItem(t,r));else for(let e=0;e<t;++e)n.push(0);return n}var Ae=new v;Ae.needsUpdate=!0,Ae.image=new Image,Ae.image.src=`data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAgAAAAIAQMAAAD+wSzIAAAAAXNSR0IB2cksfwAAAAlwSFlzAAALEwAACxMBAJqcGAAAAANQTFRFr6+vGqg52AAAAAxJREFUeJxjZGBEgQAAWAAJLpjsTQAAAABJRU5ErkJggg==`;var je=new v;je.needsUpdate=!0,je.image=new Image,je.image.src=`data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAgAAAAIBAMAAAA2IaO4AAAAAXNSR0IB2cksfwAAAAlwSFlzAAALEwAACxMBAJqcGAAAABJQTFRFgYH4gIH4gYH3gIH3gIH5gID4m94ORAAAADFJREFUeJxjZBBkfMdo9P/BB0aBj/8FGB0ufghgFGT4r8wo+P8rD2Pgo3sMjIz8jAwAMLoN0ZjS5hgAAAAASUVORK5CYII=`;function Me(e){let t=i.enabled;i.enabled=!0;let n=i.get(e);return i.enabled=t,n}function Ne(e,t){let n=i.enabled;i.enabled=!0,i.add(e,t),i.enabled=n,O&&console.log(`[MaterialX] Added to cache:`,e,t)}function M(e,t,n,i,a,o){let s=new re(null);switch(t){case`float`:case`integer`:case`boolean`:s.value=n;break;case`vector2`:s.value=A(n,2);break;case`vector3`:case`color3`:s.value=A(n,3);break;case`vector4`:case`color4`:s.value=A(n,4);break;case`matrix33`:s.value=j(n,9);break;case`matrix44`:s.value=j(n,16);break;case`filename`:if(n){let t=!0,c=o+ke+n;n.startsWith(`blob:`)||n.startsWith(`data:`)?(c=n,t=!1):n.startsWith(`http`)&&(c=n,t=!0);let l=a.cacheKey?.length?`${a.cacheKey}-${c}`:c,u=t?Me(l):null;if(u)O&&console.log(`[MaterialX] Use cached texture: `,l,u),u instanceof Promise?u.then(e=>{e?s.value=e:console.warn(`[MaterialX] Failed to load texture ${i} '${c}'`)}):s.value=u;else{O&&console.log(`[MaterialX] Load texture:`,c),i.toLowerCase().includes(`normal`)?s.value=je:s.value=Ae;let n=s.value,o=a.getTexture(c)?.then(t=>(t&&(t=t.clone(),t.colorSpace=r,Fe(t,i,e)),t)).catch(e=>(console.error(`[MaterialX] Failed to load texture ${i} '${c}'`,e),n));t&&Ne(l,o),o?.then(e=>{t&&e&&Ne(l,e),e?s.value=e:console.warn(`[MaterialX] Failed to load texture ${i} '${c}'`)})}}break;case`samplerCube`:case`string`:case`surfaceshader`:case`displacementshader`:case`volumeshader`:case`lightshader`:break;default:let c=t+`:`+i;N.has(c)||(N.set(c,!0),(O||xe())&&console.warn(`MaterialX: Unsupported uniform '${i}': ${t}`));break}return s}var N=new Map;function Pe(e){let t;switch(e){case 1:t=l;break;case 2:t=s;break;case 3:t=_;break;default:t=s;break}return t}function Fe(e,t,n,r=!0){let i=t.lastIndexOf(Te),a=t.substring(0,i)||t;n.find(a+Ee)&&(e.wrapS=Pe(n.find(a+Ee).getValue().getData())),n.find(a+De)&&(e.wrapT=Pe(n.find(a+De).getValue().getData()));let s=n.find(a+Oe)?n.get(a+Oe).value:-1,l=r?c:o;s===0&&(l=r?T:C),e.minFilter=l}function Ie(e){let t=[];for(let n of e.getNodes())n.getType()===`lightshader`&&t.push(n);return t}var P={};function Le(){return{directional:P.ND_directional_light||1,point:P.ND_point_light||2,spot:P.ND_spot_light||3}}async function Re(e,t){P={};let n=t.getOptions().hwMaxActiveLightSources;e.HwShaderGenerator.unbindLightShaders(t);let r=1,i=e.createDocument();await e.readFromXmlString(i,`<?xml version="1.0"?>
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#define gl_FragColor pc_fragColor`),i=i.replace(/^\s*out1\s*=\s*vec4\((.*)\);/gm,`
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void main() {`),r=r.replace(/(\n\s*)\}(\s*)$/,`$1    // Three.js shadow support
$1    vec4 worldPosition = u_worldMatrix * vec4(position, 1.0);
$1    vec3 transformedNormal = normalize(mat3(viewMatrix) * mat3(u_worldInverseTransposeMatrix) * normal);
$1    #include <shadowmap_vertex>
$1}$2`),i=i.replace(/(precision\s+\w+\s+float;)/,`$1

#include <common>
#include <packing>
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        #if NUM_DIR_LIGHT_SHADOWS > ${e}
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            return getShadow(directionalShadowMap[${e}], s.shadowMapSize, s.shadowIntensity, s.shadowBias, s.shadowRadius, vDirectionalShadowCoord[${e}]);
        }
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        }
        #endif`;let a=``;for(let e=0;e<4;e++)a+=`
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            PointLightShadow s = pointLightShadows[${e}];
            return getPointShadow(pointShadowMap[${e}], s.shadowMapSize, s.shadowIntensity, s.shadowBias, s.shadowRadius, vPointShadowCoord[${e}], s.shadowCameraNear, s.shadowCameraFar);
        }
        #endif`;i=i.replace(/void sampleLightSource\(LightData light, vec3 position, out lightshader result\)/,`// MaterialX light type IDs (from registerLights)
#define MX_LIGHT_TYPE_DIRECTIONAL ${e.directional}
#define MX_LIGHT_TYPE_POINT ${e.point}
#define MX_LIGHT_TYPE_SPOT ${e.spot}

// Per-type shadow index counters (global so they persist across sampleLightSource calls)
int mxDirShadowIdx = 0;
int mxSpotShadowIdx = 0;
int mxPointShadowIdx = 0;

// Shadow sampling helpers using constant indices (required for sampler arrays in GLSL ES 3.0)
float sampleMxDirShadow(int idx) {
    #ifdef USE_SHADOWMAP
    #if NUM_DIR_LIGHT_SHADOWS > 0
    ${t}
    #endif
    #endif
    return 1.0;
}

float sampleMxSpotShadow(int idx) {
    #ifdef USE_SHADOWMAP
    #if NUM_SPOT_LIGHT_SHADOWS > 0
    ${n}
    #endif
    #endif
    return 1.0;
}

float sampleMxPointShadow(int idx) {
    #ifdef USE_SHADOWMAP
    #if NUM_POINT_LIGHT_SHADOWS > 0
    ${a}
    #endif
    #endif
    return 1.0;
}

void sampleLightSource(LightData light, vec3 position, out lightshader result)`),i=i.replace(/(void sampleLightSource\(LightData light, vec3 position, out lightshader result\)\s*\{[\s\S]*?)(^\})/m,`$1    // Apply Three.js shadow and increment per-type shadow counters
    if (light.type == MX_LIGHT_TYPE_DIRECTIONAL) {
        result.intensity *= sampleMxDirShadow(mxDirShadowIdx);
        mxDirShadowIdx++;
    } else if (light.type == MX_LIGHT_TYPE_SPOT) {
        result.intensity *= sampleMxSpotShadow(mxSpotShadowIdx);
        mxSpotShadowIdx++;
    } else if (light.type == MX_LIGHT_TYPE_POINT) {
        result.intensity *= sampleMxPointShadow(mxPointShadowIdx);
        mxPointShadowIdx++;
    }
$2`)}let f=e.parameters?.transparent??!1;t={name:e.name,uniforms:{},vertexShader:r,fragmentShader:i,glslVersion:x,depthTest:!0,depthWrite:!f,defines:a,lights:!0,...e.parameters}}super(t),e&&(this.shaderName=e.shaderName||null,this._context=e.context,this._shader=e.shader,this._needsTangents=r.includes(`in vec4 tangent;`)||r.includes(`in vec3 tangent;`),Object.assign(this.uniforms,{...p.lights,...Ge(e.shader.getStage(`vertex`),e.loaders,``),...Ge(e.shader.getStage(`pixel`),e.loaders,``),u_worldMatrix:{value:new m},u_viewProjectionMatrix:{value:new m},u_viewPosition:{value:new n},u_worldInverseTransposeMatrix:{value:new m},u_envMatrix:{value:new m},u_envRadiance:{value:null,type:`t`},u_envRadianceMips:{value:8,type:`i`},u_envRadianceSamples:{value:8,type:`i`},u_envIrradiance:{value:null,type:`t`},envMapIntensity:{value:1},u_refractionEnv:{value:!0},u_numActiveLightSources:{value:0},u_lightData:{value:[],needsUpdate:!1}}),Ke(this,e.shader.getStage(`pixel`)),Ke(this,e.shader.getStage(`vertex`)),(O||e.debug)&&(console.group(`[MaterialX]: `,this.name),console.log(`Vertex shader length: ${r.length}\n`,r),console.log(`Fragment shader length: ${i.length}\n`,i),console.groupEnd()))}_missingTangentsWarned=!1;onBeforeRender(e,t,n,r,i,a){this._needsTangents&&!r.attributes.tangent&&(this._missingTangentsWarned||(this._missingTangentsWarned=!0,console.warn(`[MaterialX] Tangents are required for this material (${this.name}) but not present in the geometry.`)));let o=this._context?.getTime?.()||he(),s=this._context?.getFrame?.()||_e(),c=Xe.get(t);c&&(c.update(s,t,e),this.updateEnvironmentUniforms(c,t)),this.updateUniforms(e,i,n,o,s)}envMapIntensity=1;envMap=null;updateUniforms=(e,t,n,r,i)=>{let a=this.uniforms;a.u_worldMatrix&&(a.u_worldMatrix.value.copy(t.matrixWorld),a.u_worldMatrix.needsUpdate=!0),a.u_viewPosition&&(a.u_viewPosition.value.setFromMatrixPosition(n.matrixWorld),a.u_viewPosition.needsUpdate=!0),a.u_viewProjectionMatrix&&(a.u_viewProjectionMatrix.value.multiplyMatrices(n.projectionMatrix,n.matrixWorldInverse),a.u_viewProjectionMatrix.needsUpdate=!0),a.u_worldInverseTransposeMatrix&&(a.u_worldInverseTransposeMatrix.value.setFromMatrix3(Ze.getNormalMatrix(t.matrixWorld)),a.u_worldInverseTransposeMatrix.needsUpdate=!0),a.u_time&&(r===void 0&&(r=he()),a.u_time.value=r),a.u_frame&&(i===void 0&&(i=_e()),a.u_frame.value=i),this.uniformsNeedUpdate=!0};updateEnvironmentUniforms=(e,t)=>{let n=this.uniforms,r=e.lightData||null,i=e.lightCount||0,a=e.getTextures(this)||null;if(n.u_numActiveLightSources&&i>=0&&(n.u_numActiveLightSources.value=i),r?.length&&(n.u_lightData.value=r,`needsUpdate`in n.u_lightData&&n.u_lightData.needsUpdate===!1&&(O&&console.debug(`[MaterialX] LightData assigned (${this.name}, ${this.uuid})`,r),n.u_lightData.needsUpdate=void 0)),n.u_envRadiance){let e=n.u_envRadiance.value;n.u_envRadiance.value=a.radianceTexture,e!=a.radianceTexture&&(n.u_envRadiance.needsUpdate=!0)}if(n.u_envRadianceMips&&(n.u_envRadianceMips.value=Math.trunc(Math.log2(Math.max(a.radianceTexture?.source.data.width??0,a.radianceTexture?.source.data.height??0)))+1),n.u_envIrradiance){let e=n.u_envIrradiance.value;n.u_envIrradiance.value=a.irradianceTexture,e!=a.irradianceTexture&&(n.u_envIrradiance.needsUpdate=!0)}n.envMapIntensity&&(n.envMapIntensity.value=(this.envMapIntensity??1)*(t.environmentIntensity??1)),this.uniformsNeedUpdate=!0}},Qe=class{name=`NEEDLE_materials_mtlx`;_generatedMaterials=[];_documentReadyPromise=null;get materialX_root_data(){let e=this.parser.json.extensions?.[this.name];if(!e)return null;let t=null;return t=`documents`in e&&Array.isArray(e.documents)?e.documents:[e],t}get materials(){return this._generatedMaterials}constructor(e,t,n){this.parser=e,this.options=t,this.context=n,O&&console.log(`MaterialXLoader created for parser`),this.materialX_root_data&&Ye()}loadMaterial(e){return(this.parser.json.materials?.[e])?.extensions?.[this.name]?this._loadMaterialAsync(e):null}async _loadMaterialAsync(e){let t=this.parser.json.materials?.[e],n=t.extensions?.[this.name],r=n.document||0,i=this.materialX_root_data?.[r],a=i.mtlx||null;if(O&&console.debug(`[MaterialX] extension found in material[${e}]:`,t.extensions?.[this.name],`
→ MTLX root data:`,i),n&&a){let e={...this.options};return e.parameters||={},e.parameters?.side===void 0&&t.doubleSided!==void 0&&(e.parameters.side=t.doubleSided?2:0),tt(a,n.name,{cacheKey:this.options.cacheKey||``,getTexture:async e=>{let t=e.split(`/`).pop()?.split(`.`).shift()||``;if(i){let e=i.textures||[],n=-1;for(let r of e)if(r.name===t){let e=r.pointer,i=e.substring(10);if(n=parseInt(i),isNaN(n)||n<0){console.error(`[MaterialX] Invalid texture index in pointer:`,e);return}else O&&console.log(`[MaterialX] Texture index found:`,n,`for`,t)}if(n<0){console.error(`[MaterialX] Texture not found in parser:`,t,this.parser.json);return}return this.parser.getDependency(`texture`,n)}return null}},e,this.context).then(e=>(e instanceof L&&this._generatedMaterials.push(e),e))}let o=new b;return o.name=`MaterialX_Fallback`,o}};function $e(e,t,n){e.register(e=>new Qe(e,t||{},n||{}))}async function et(e){if(await Ye(),!I.materialXModule)throw Error(`[MaterialX] module failed to initialize`);let t=I.materialXModule.createDocument();return t.setDataLibrary(I.materialXStdLib),await I.materialXModule.readFromXmlString(t,e,``),O&&console.log(`[MaterialX] root document parsed successfully`),t}async function tt(e,t,n,r,i){try{O&&console.log(`Creating MaterialX material: ${t}`);let a=await et(e);if(!I.materialXModule||!I.materialXGenerator||!I.materialXGenContext){console.warn(`[MaterialX] WASM module not ready, returning fallback material`);let e=new b;return e.name=`MaterialX_Fallback_${t}`,e}let o=null;O&&console.log(`[MaterialX] document`,a);let s=a.getMaterialNodes();O&&console.log(`[MaterialX] Found ${s.length} material nodes in document`,s);for(let e=0;e<s.length;++e){let n=s[e];if(n){let r=n.getNamePath();if(O&&console.log(`[MaterialX] Scan material[${e}]: ${r}`),s.length===1||r==t||e===t){t=r,o=n,O&&console.log(`[MaterialX] Use material node: '${r}'`);break}}}if(!o){s.length<=0?console.warn(`[MaterialX] No material nodes found in MaterialX document.`):console.warn(`[MaterialX] No renderable element found in MaterialX document (${t}) → Please provide a name or index. ${s.length} options: ${s.map(e=>e.getNamePath()).join(`, `)}`);let e=new b;return e.color.set(16711935),e.name=`MaterialX_NoRenderable_${t}`,e}O&&console.log(`[MaterialX] Using renderable element for shader generation`);let c=I.materialXGenerator.getTarget(),l=typeof I.materialXModule.getAlphaMode==`function`?I.materialXModule.getAlphaMode(o,c):I.materialXModule.isTransparentSurface(o,c)?`blend`:`opaque`,u=l===`mask`,d=l===`blend`,f=u||d;{let e=I.materialXGenContext.getOptions();e.hwTransparency=f,e.hwTexcoordVerticalFlip=!0,e.fileTextureVerticalFlip=!0}O&&console.log(`[MaterialX] Generating MaterialX shaders...`);let p=o.getNamePath?o.getNamePath():o.getName(),m=I.materialXGenerator.generate(p,o,I.materialXGenContext),h=new L({name:t,shaderName:null,shader:m,context:i||{},parameters:{transparent:d,alphaTest:u?1e-4:0,...r?.parameters},loaders:n});return O&&console.log(`[MaterialX]  material created:`,h.name),h}catch(n){let r=n;if(typeof n==`number`&&I?.materialXModule)try{let e=I.materialXModule.getExceptionDetailedMessage,t=I.materialXModule.getExceptionMessage;r=(typeof e==`function`?e(n):null)||(typeof t==`function`?t(n):null)||`WASM exception code ${n}`}catch{r=`WASM exception code ${n}`}console.error(`[MaterialX v${qe}] Error creating MaterialX material (${t}):\n${r}\n→ MaterialX source:\n`,e);let i=new b;return i.color.set(16711935),i.name=`MaterialX_Error_${t}`,i}}var nt={createMaterialXMaterial:tt};export{Xe as a,ue as c,se as d,L as i,le as l,Qe as n,Je as o,$e as r,Ye as s,nt as t,ce as u};