@babylonjs/viewer/dist/chunks/pbr-renderable-BR-cc1W5.esm.min.js

The Babylon Viewer aims to simplify a specific but common Babylon.js use case: loading, viewing, and interacting with a 3D model.

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Ge;for(const e of a().values())if(e.frag){const t=e.frag(Ne);t&&(Le.push(t),Ge||=t._pc)}if(de&&H){const e=R.map(e=>({lightIndex:e.lightIndex,shadowType:e.shadowType}));Le.push(H(e))}we&&q&&Le.push(q(le(x)));let Ce=oe(Ae,Le);return Ge&&(Ce=Ge(Ce)),V.set(ae,Ce),Ce}}async function le(e,t,n){const a=e.surface.engine,r=a._device,l=new Map,i=!!n,c=[];for(let t=0;t<e.lights.length;t++){const n=e.lights[t].shadowGenerator;n&&c.push({lightIndex:t,shadowType:n._shadowType,gen:n})}const p=c.length>0;let _=!1,u=!1,m=!1;const v=[];for(const n of t){const t=V(n,e.lights),a=t>0?1:-t;if(_||=a>0,1===a){u=!0;const a=ce(e.lights,t-1);v.includes(a)||v.push(a),m||=n.receiveShadows&&p}else a>0&&(m=!0)}let B=!1,S=!1,T=!1,M=!1,A=!1,L=!1,N=!1,G=!1,C=!1;for(let e=0;e<t.length;e++){const 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ye=se({_singleLightWGSL:te,_getSingleLightBlock:ne,_multiLightWGSL:re,_multiLightLoop:oe,_toneMappingHelpers:ge,_toneMappingCall:he,_fogHelper:be,_fogBlock:xe,_createPbrTemplateExt:le,_flatNormalWgsl:J,_createPbrShadowFragment:ee,_shadowLights:c,_createThinInstanceFragment:ue}),we=(i?f:0)|(ve?F:0)|(e.fog?b:0),Be=new Map,Se=me,$e=de,Fe=(e,t,i)=>{const _=i??t.material,f=_._renderFeatures??=O(_),u=null!=i,m=V(t,e.lights),v=m>0?1:-m,b=f.features,B=f.features2??0,S=!(0!==(B&(w|y)))&&t.receiveShadows&&p,F=0===v?0:1!==v||S?2:1,T=1===F?ce(e.lights,m-1):"",M=z(t,S)|(t._primitiveFeatures??0),A=0!==(B&y)?_._esmShadowDepthCode:"",L=t._gpu._vbLayout,N=t._gpu._vbKey??"",G=_._uv2Mask??0,C=ye(b,B,M,we,F,T,A,L,N,G);C._prim=t._primitive;const I=E(a,b,B,M,we,C,`${F}:${T}${N}:${G}`,_.stencil??null),U=new W(C._meshUboSpec._totalBytes/4),P=a._makePackMeshWorld?.(e)??D;P(U,t.worldMatrix,0,0),V(t,e.lights,U);const k=H(a,U),j=C._materialUboSpec,Y=new W(j._totalBytes/4);_e(Y,_,j);const J=H(a,Y),ee=!!_._transmissive&&0!==(B&R),te=ee?null:q(a,I,C,k,J,_,n??null,t);let ne=null;const ae=S?c:[];if(ae.length>0&&I._shadowBGL){let e=Be.get(I._shadowBGL);if(!e){const t=[];let n=0;for(const e of ae){const a=e.gen;t.push({binding:n++,resource:a._depthTexture.createView()}),t.push({binding:n++,resource:a._depthSampler}),t.push({binding:n++,resource:{buffer:a._shadowUBO}})}e=r.createBindGroup({layout:I._shadowBGL,entries:t}),Be.set(I._shadowBGL,e)}ne=e}const re=K(_);for(const e of re)X(e);e._meshDisposables.set(t,[()=>{k.destroy(),J.destroy()},()=>{for(const e of re)Z(e)}]);const oe=0===(B&(w|y))&&0!==(b&$),se=t.renderOrder??(oe||ee?150:100),le=0!==(b&o),ie=0!==(B&s)&&0!==(M&h),pe=0!==(M&g),ue=0!==(M&d),me=0!==(M&x);let de=t.worldMatrixVersion,ge=e.lights.length,he=null;const ve=oe||ee?[t.worldMatrix[12],t.worldMatrix[13],t.worldMatrix[14]]:null,be=()=>{const n=t.worldMatrixVersion;n===de&&e.lights.length===ge||(ve&&(ve[0]=t.worldMatrix[12],ve[1]=t.worldMatrix[13],ve[2]=t.worldMatrix[14]),P(U,t.worldMatrix,0,0),V(t,e.lights,U),r.queue.writeBuffer(k,0,U),de=n,ge=e.lights.length);const o=_._uboVersion;if(o!==Te){Te=o;let e=l.get(j._totalBytes);e?e.fill(0):(e=new W(j._totalBytes/4),l.set(j._totalBytes,e)),_e(e,_,j),r.queue.writeBuffer(J,0,e.buffer,0,e.byteLength)}ue&&(he=$e(a,t.thinInstances,me,t._gpu.indexCount))},xe=a._wrapRenderableForFO?.(be,e,()=>{de=-1})??be,Fe={order:se,isTransparent:oe,_transmissive:ee,mesh:t,bind(r,o){const s=Q(r,o,I),l=ee?q(a,I,C,k,J,_,n??null,t,o._transmissionTexture):te,i=fe?.tryBind(Fe,e,t,a,me,oe||ee,xe,o);return{renderable:Fe,pipeline:s,...i?{_updateBatches:[i._updateBatch]}:{},update:i?i.update:xe,draw:e=>((e,n,r)=>{if(!u&&t.material!==_)return 0;const o=t._gpu;e.setBindGroup(1,n),ne&&e.setBindGroup(2,ne);let s=0;e.setVertexBuffer(s++,o.positionBuffer),e.setVertexBuffer(s++,o.normalBuffer),le&&o.tangentBuffer&&e.setVertexBuffer(s++,o.tangentBuffer),e.setVertexBuffer(s++,o.uvBuffer),ie&&o.uv2Buffer&&e.setVertexBuffer(s++,o.uv2Buffer),pe&&o.colorBuffer&&e.setVertexBuffer(s++,o.colorBuffer);const l=t.skeleton??t.vat;l&&(e.setVertexBuffer(s++,l.jointsBuffer),e.setVertexBuffer(s++,l.weightsBuffer),l.joints1Buffer&&l.weights1Buffer&&(e.setVertexBuffer(s++,l.joints1Buffer),e.setVertexBuffer(s++,l.weights1Buffer)));const i=ue?t.thinInstances:null;return i&&Se&&(s=Se(a,i,e,s,me,r?.cullDrawBufs)),e.setIndexBuffer(o.indexBuffer,o.indexFormat),r?r.draw(e,o.indexCount,i.count):he?e.drawIndexedIndirect(he,0):e.drawIndexed(o.indexCount,i?.count),1})(e,l,i)}}};ve&&(Fe._worldCenter=ve);let Te=_._uboVersion;return Fe},Te=t.map(t=>Fe(e,t));return e._pbrGeomContext={_composePbr:ye,_sceneFeatures:we,_envTextures:n??null,_shadowLights:c,_syncThinInstanceBuffers:me,_syncThinInstanceForDraw:de},e._disposables.push(a._pbrCleanup??=()=>{k(),j(a)}),{renderables:Te,rebuildSingle:Fe,_G:C}}function ie(e){return"hemispheric"===e||"directional"===e||"spot"===e?e:"point"}function ce(e,t){let n=0;for(const a of e)if(a._writeLightUbo){if(n===t)return ie(a.lightType);n++}return"point"}async function pe(e){return"hemispheric"===e?import("./singlelight-hemispheric-wgsl-rP4CfYTw.esm.min.js"):"directional"===e?import("./singlelight-directional-wgsl-CrFE39B8.esm.min.js"):"spot"===e?import("./singlelight-spot-wgsl-8jqb5Mlu.esm.min.js"):import("./singlelight-point-wgsl-D9YuuPZQ.esm.min.js")}function _e(e,t,n){e[0]=t.environmentIntensity??1,e[1]=t.directIntensity??1,e[2]=t.reflectance??.04,e[3]=t.alpha??1;const r=n._offsets.get("baseColorFactor");if(void 0!==r){const n=r/4,a=t.baseColorFactor;e[n]=a?a[0]:1,e[n+1]=a?a[1]:1,e[n+2]=a?a[2]:1,e[n+3]=a?a[3]:1}if(n._offsets.has("metallicFactor")){const a=n._offsets.get("metallicFactor")/4;e[a]=t.metallicFactor??1,e[a+1]=t.roughnessFactor??1,e[a+2]=t.normalTextureScale??1,e[a+3]=!1===t.usePhysicalLightFalloff?0:1}for(const r of a().values())r.writeUbo&&r.writeUbo(e,t,n._offsets)}export{_e as _writeMaterialData,le as buildPbrRenderables};
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