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@luma.gl/shadertools

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Shader module system for luma.gl

visgl/luma.gl

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i},ct=(i,e,t)=>(at(i,e,"default"),t&&at(t,e,"default")),Jt=(i,e,t)=>(t=i!=null?Ss(Ts(i)):{},at(e||!i||!i.__esModule?Ve(t,"default",{value:i,enumerable:!0}):t,i)),Os=i=>at(Ve({},"__esModule",{value:!0}),i);var Hn=(i,e,t)=>(Ms(i,typeof e!="symbol"?e+"":e,t),t);var lt=Cs((so,Gn)=>{Gn.exports=globalThis.luma});var ot={};Ns(ot,{ShaderAssembler:()=>Ge,_getDependencyGraph:()=>He,_resolveModules:()=>nr,assembleGLSLShaderPair:()=>ht,capitalize:()=>ve,checkShaderModuleDeprecations:()=>ze,combineInjects:()=>er,convertToVec4:()=>on,dirlight:()=>Fn,dirlight1:()=>xs,fp32:()=>ns,fp64:()=>is,fp64LowPart:()=>rt,fp64arithmetic:()=>Pn,fp64ify:()=>Fe,fp64ifyMatrix4:()=>st,fromHalfFloat:()=>Jr,generateShaderForModule:()=>_r,geometry1:()=>ds,getPassthroughFS:()=>hr,getQualifierDetails:()=>fr,getShaderInfo:()=>ft,getShaderLayoutFromWGSL:()=>Sr,getShaderModuleDependencies:()=>We,getShaderModuleSource:()=>pt,getShaderModuleUniforms:()=>tr,gouraudLighting:()=>bs,gouraudMaterial:()=>Bn,initializeShaderModule:()=>ut,initializeShaderModules:()=>le,lighting:()=>ce,lights1:()=>Ae,pbr:()=>Is,pbrMaterial:()=>ms,phongLighting:()=>ys,phongMaterial:()=>Vn,picking:()=>os,preprocess:()=>mt,project1:()=>Qt,random:()=>ts,toHalfFloat:()=>Qr,typeToChannelCount:()=>mr,typeToChannelSuffix:()=>pr});ct(ot,Jt(lt(),1));function de(i,e){if(!i)throw new Error(e||"shadertools: assertion failed.")}var en={number:{type:"number",validate(i,e){return Number.isFinite(i)&&typeof e=="object"&&(e.max===void 0||i<=e.max)&&(e.min===void 0||i>=e.min)}},array:{type:"array",validate(i,e){return Array.isArray(i)||ArrayBuffer.isView(i)}}};function jn(i){let e={};for(let[t,n]of Object.entries(i))e[t]=Ps(n);return e}function Xn(i,e,t){let n={};for(let[r,s]of Object.entries(e))i&&r in i&&!s.private?(s.validate&&de(s.validate(i[r],s),`${t}: invalid ${r}`),n[r]=i[r]):n[r]=s.value;return n}function Ps(i){let e=qn(i);if(e!=="object")return{value:i,...en[e],type:e};if(typeof i=="object")return i?i.type!==void 0?{...i,...en[i.type],type:i.type}:i.value===void 0?{type:"object",value:i}:(e=qn(i.value),{...i,...en[e],type:e}):{type:"object",value:null};throw new Error("props")}function qn(i){return Array.isArray(i)||ArrayBuffer.isView(i)?"array":typeof i}var Yn=`#ifdef MODULE_LOGDEPTH logdepth_adjustPosition(gl_Position); #endif 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e&&i.getUniforms?i.getUniforms(e,n):Xn(e,i.instance?.propValidators,i.name)}function ze(i,e,t){i.deprecations?.forEach(n=>{n.regex?.test(e)&&(n.deprecated?t.deprecated(n.old,n.new)():t.removed(n.old,n.new)())})}function Fs(i){return i.forEach(e=>{switch(e.type){case"function":e.regex=new RegExp(`\\b${e.old}\\(`);break;default:e.regex=new RegExp(`${e.type} ${e.old};`)}}),i}function We(i){le(i);let e={},t={};He({modules:i,level:0,moduleMap:e,moduleDepth:t});let n=Object.keys(t).sort((r,s)=>t[s]-t[r]).map(r=>e[r]);return le(n),n}function He(i){let{modules:e,level:t,moduleMap:n,moduleDepth:r}=i;if(t>=5)throw new Error("Possible loop in shader dependency graph");for(let s of e)n[s.name]=s,(r[s.name]===void 0||r[s.name]<t)&&(r[s.name]=t);for(let s of e)s.dependencies&&He({modules:s.dependencies,level:t+1,moduleMap:n,moduleDepth:r})}function Bs(i){le(i);let e={},t={};return He({modules:i,level:0,moduleMap:e,moduleDepth:t}),i=Object.keys(t).sort((n,r)=>t[r]-t[n]).map(n=>e[n]),le(i),i}function nr(i){return Bs(i)}function rr(i){switch(i?.gpu.toLowerCase()){case"apple":return`#define APPLE_GPU // Apple optimizes away the calculation necessary for emulated fp64 #define LUMA_FP64_CODE_ELIMINATION_WORKAROUND 1 #define LUMA_FP32_TAN_PRECISION_WORKAROUND 1 // Intel GPU doesn't have full 32 bits precision in same cases, causes overflow #define LUMA_FP64_HIGH_BITS_OVERFLOW_WORKAROUND 1 `;case"nvidia":return`#define NVIDIA_GPU // Nvidia optimizes away the calculation necessary for emulated fp64 #define LUMA_FP64_CODE_ELIMINATION_WORKAROUND 1 `;case"intel":return`#define INTEL_GPU // Intel optimizes away the calculation necessary for emulated fp64 #define LUMA_FP64_CODE_ELIMINATION_WORKAROUND 1 // Intel's built-in 'tan' function doesn't have acceptable precision #define LUMA_FP32_TAN_PRECISION_WORKAROUND 1 // Intel GPU doesn't have full 32 bits precision in same cases, causes overflow #define LUMA_FP64_HIGH_BITS_OVERFLOW_WORKAROUND 1 `;case"amd":return`#define AMD_GPU `;default:return`#define DEFAULT_GPU // Prevent driver from optimizing away the calculation necessary for emulated fp64 #define LUMA_FP64_CODE_ELIMINATION_WORKAROUND 1 // Headless Chrome's software shader 'tan' function doesn't have acceptable precision #define LUMA_FP32_TAN_PRECISION_WORKAROUND 1 // If the GPU doesn't have full 32 bits precision, will causes overflow #define LUMA_FP64_HIGH_BITS_OVERFLOW_WORKAROUND 1 `}}function ir(i,e){if(Number(i.match(/^#version[ \t]+(\d+)/m)?.[1]||100)!==300)throw new Error("luma.gl v9 only supports GLSL 3.00 shader sources");switch(e){case"vertex":return i=sr(i,Vs),i;case"fragment":return i=sr(i,$s),i;default:throw new Error(e)}}var or=[[/^(#version[ \t]+(100|300[ \t]+es))?[ \t]*\n/,`#version 300 es `],[/\btexture(2D|2DProj|Cube)Lod(EXT)?\(/g,"textureLod("],[/\btexture(2D|2DProj|Cube)(EXT)?\(/g,"texture("]],Vs=[...or,[nn("attribute"),"in $1"],[nn("varying"),"out $1"]],$s=[...or,[nn("varying"),"in $1"]];function sr(i,e){for(let[t,n]of e)i=i.replace(t,n);return i}function nn(i){return new RegExp(`\\b${i}[ \\t]+(\\w+[ \\t]+\\w+(\\[\\w+\\])?;)`,"g")}function rn(i,e){let t="";for(let n in i){let r=i[n];if(t+=`void ${r.signature} { `,r.header&&(t+=` ${r.header}`),e[n]){let s=e[n];s.sort((a,o)=>a.order-o.order);for(let a of s)t+=` ${a.injection} `}r.footer&&(t+=` ${r.footer}`),t+=`} `}return t}function sn(i){let e={vertex:{},fragment:{}};for(let t of i){let n,r;typeof t!="string"?(n=t,r=n.hook):(n={},r=t),r=r.trim();let[s,a]=r.split(":"),o=r.replace(/\(.+/,""),c=Object.assign(n,{signature:a});switch(s){case"vs":e.vertex[o]=c;break;case"fs":e.fragment[o]=c;break;default:throw new Error(s)}}return e}function ft(i,e){return{name:Us(i,e),language:"glsl",version:zs(i)}}function Us(i,e="unnamed"){let n=/#define[^\S\r\n]*SHADER_NAME[^\S\r\n]*([A-Za-z0-9_-]+)\s*/.exec(i);return n?n[1]:e}function zs(i){let e=100,t=i.match(/[^\s]+/g);if(t&&t.length>=2&&t[0]==="#version"){let 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k=/^(v|f)s:#([\w-]+)$/.exec(T);if(k){let C=k[2]==="decl"?_:b;C[T]=C[T]||[],C[T].push(E[T])}else f[T]=f[T]||[],f[T].push(E[T])}}return l+=cr,l=Ue(l,n,_),l+=rn(u[n],f),l+=c,l=Ue(l,n,b),l}function ar(i,e){let{id:t,source:n,stage:r,language:s="glsl",modules:a,defines:o={},hookFunctions:c=[],inject:l={},prologue:u=!0,log:f}=e;de(typeof n=="string","shader source must be a string");let _=s==="glsl"?ft(n).version:-1,b=i.shaderLanguageVersion,w=_===100?"#version 100":"#version 300 es",S=n.split(` `).slice(1).join(` `),E={};a.forEach(O=>{Object.assign(E,O.defines)}),Object.assign(E,o);let T="";switch(s){case"wgsl":break;case"glsl":T=u?`${w} // ----- PROLOGUE ------------------------- ${Gs({id:t,source:n,stage:r})} ${`#define SHADER_TYPE_${r.toUpperCase()}`} ${rr(i)} ${r==="fragment"?Ws:""} // ----- APPLICATION DEFINES ------------------------- ${qs(E)} `:`${w} `;break}let k=sn(c),I={},C={},M={};for(let O in l){let V=typeof l[O]=="string"?{injection:l[O],order:0}:l[O],F=/^(v|f)s:(#)?([\w-]+)$/.exec(O);if(F){let D=F[2],W=F[3];D?W==="decl"?C[O]=[V]:M[O]=[V]:I[O]=[V]}else M[O]=[V]}for(let O of a){f&&ze(O,S,f);let V=pt(O,r);T+=V;let F=O.instance?.normalizedInjections[r]||{};for(let D in F){let W=/^(v|f)s:#([\w-]+)$/.exec(D);if(W){let j=W[2]==="decl"?C:M;j[D]=j[D]||[],j[D].push(F[D])}else I[D]=I[D]||[],I[D].push(F[D])}}return T+="// ----- MAIN SHADER SOURCE -------------------------",T+=cr,T=Ue(T,r,C),T+=rn(k[r],I),T+=S,T=Ue(T,r,M),s==="glsl"&&_!==b&&(T=ir(T,r)),T.trim()}function ur(i){return function(t){let n={};for(let r of i){let s=r.getUniforms?.(t,n);Object.assign(n,s)}return n}}function Gs(i){let{id:e,source:t,stage:n}=i;return e&&t.indexOf("SHADER_NAME")===-1?` #define SHADER_NAME ${e}_${n}`:""}function qs(i={}){let e="";for(let t in i){let n=i[t];(n||Number.isFinite(n))&&(e+=`#define ${t.toUpperCase()} ${i[t]} `)}return e}function pt(i,e){let t;switch(e){case"vertex":t=i.vs||"";break;case"fragment":t=i.fs||"";break;case"wgsl":t=i.source||"";break;default:de(!1)}if(!i.name)throw new Error("Shader module must have a name");let n=i.name.toUpperCase().replace(/[^0-9a-z]/gi,"_"),r=`// ----- MODULE ${i.name} --------------- `;return e!=="wgsl"&&(r+=`#define MODULE_${n} `),r+=`${t} `,r}var js=/^\s*\#\s*ifdef\s*([a-zA-Z_]+)\s*$/,Xs=/^\s*\#\s*endif\s*$/;function mt(i,e){let t=i.split(` `),n=[],r=!0,s=null;for(let a of t){let o=a.match(js),c=a.match(Xs);o?(s=o[1],r=Boolean(e?.defines?.[s])):c?r=!0:r&&n.push(a)}return n.join(` `)}var Le=class{_hookFunctions=[];_defaultModules=[];static getDefaultShaderAssembler(){return Le.defaultShaderAssembler=Le.defaultShaderAssembler||new Le,Le.defaultShaderAssembler}addDefaultModule(e){this._defaultModules.find(t=>t.name===(typeof e=="string"?e:e.name))||this._defaultModules.push(e)}removeDefaultModule(e){let t=typeof e=="string"?e:e.name;this._defaultModules=this._defaultModules.filter(n=>n.name!==t)}addShaderHook(e,t){t&&(e=Object.assign(t,{hook:e})),this._hookFunctions.push(e)}assembleWGSLShader(e){let t=this._getModuleList(e.modules),n=this._hookFunctions,{source:r,getUniforms:s}=lr({...e,source:e.source,modules:t,hookFunctions:n});return{source:e.platformInfo.shaderLanguage==="wgsl"?mt(r):r,getUniforms:s,modules:t}}assembleGLSLShaderPair(e){let t=this._getModuleList(e.modules),n=this._hookFunctions;return{...ht({...e,vs:e.vs,fs:e.fs,modules:t,hookFunctions:n}),modules:t}}_getModuleList(e=[]){let t=new Array(this._defaultModules.length+e.length),n={},r=0;for(let s=0,a=this._defaultModules.length;s<a;++s){let o=this._defaultModules[s],c=o.name;t[r++]=o,n[c]=!0}for(let s=0,a=e.length;s<a;++s){let o=e[s],c=o.name;n[c]||(t[r++]=o,n[c]=!0)}return t.length=r,le(t),t}},Ge=Le;Hn(Ge,"defaultShaderAssembler");var Ys=`out vec4 transform_output; void main() { transform_output = vec4(0); }`,Ks=`#version 300 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i;default:throw new Error(`invalid channels: ${e}`)}}function ve(i){return typeof i=="string"?i.charAt(0).toUpperCase()+i.slice(1):i}function dr(i,e){return Qs(i,e)}function Qs(i,e){let t=[];switch(e.uniforms){case"scoped-interface-blocks":case"unscoped-interface-blocks":t.push(`uniform ${ve(i.name)} {`);break;case"uniforms":}for(let[n,r]of Object.entries(i.uniformTypes||{})){let s=Js(r);switch(e.uniforms){case"scoped-interface-blocks":t.push(` ${s} ${n};`);break;case"unscoped-interface-blocks":t.push(` ${s} ${i.name}_${n};`);break;case"uniforms":t.push(`uniform ${s} ${i.name}_${n};`)}}switch(e.uniforms){case"scoped-interface-blocks":t.push(`} ${i.name};`);break;case"unscoped-interface-blocks":t.push("};");break;case"uniforms":}return t.push(""),t.join(` `)}function 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