@babylonjs/viewer/dist/chunks/openpbrTransmissionLayerData-CNgPmHmQ.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.

import{S as e}from"./index-BPURObVq.esm.min.js";const n="sceneFragmentDeclaration",i="uniform mat4 viewProjection;\n#ifdef MULTIVIEW\nuniform mat4 viewProjectionR;\n#endif\nuniform mat4 view;uniform mat4 projection;uniform vec4 vEyePosition;uniform mat4 inverseProjection;\n";e.IncludesShadersStore[n]||(e.IncludesShadersStore[n]=i);const r={name:n,shader:i},o="openpbrDielectricReflectance",a="struct ReflectanceParams\n{float F0;float F90;vec3 coloredF0;vec3 coloredF90;};\n#define pbr_inline\nReflectanceParams dielectricReflectance(\nin float insideIOR,in float outsideIOR,in vec3 specularColor,in float specularWeight\n)\n{ReflectanceParams outParams;float dielectricF0=pow((insideIOR-outsideIOR)/(insideIOR+outsideIOR),2.0);float f90Scale=clamp(2.0*abs(insideIOR-outsideIOR),0.0,1.0);\n#if (DIELECTRIC_SPECULAR_MODEL==DIELECTRIC_SPECULAR_MODEL_OPENPBR)\nvec3 dielectricColorF90=specularColor.rgb*vec3(f90Scale);\n#else\nvec3 dielectricColorF90=vec3(f90Scale);\n#endif\n#if DIELECTRIC_SPECULAR_MODEL==DIELECTRIC_SPECULAR_MODEL_GLTF\nfloat maxF0=max(specularColor.r,max(specularColor.g,specularColor.b));outParams.F0=dielectricF0*specularWeight*maxF0;\n#else\noutParams.F0=dielectricF0*specularWeight;\n#endif\noutParams.F90=f90Scale*specularWeight;outParams.coloredF0=vec3(dielectricF0*specularWeight)*specularColor.rgb;outParams.coloredF90=dielectricColorF90*vec3(specularWeight);return outParams;}\n";e.IncludesShadersStore[o]||(e.IncludesShadersStore[o]=a);const t={name:o,shader:a},c="openpbrGeometryInfo",s="struct geometryInfoOutParams\n{float NdotV;float NdotVUnclamped;vec3 environmentBrdf;float horizonOcclusion;};struct geometryInfoAnisoOutParams\n{float NdotV;float NdotVUnclamped;vec3 environmentBrdf;float horizonOcclusion;float anisotropy;vec3 anisotropicTangent;vec3 anisotropicBitangent;mat3 TBN;};\n#define pbr_inline\ngeometryInfoOutParams geometryInfo(\nin vec3 normalW,in vec3 viewDirectionW,in float roughness,in vec3 geometricNormalW\n)\n{geometryInfoOutParams outParams;outParams.NdotVUnclamped=dot(normalW,viewDirectionW);outParams.NdotV=absEps(outParams.NdotVUnclamped);\n#if defined(ENVIRONMENTBRDF)\noutParams.environmentBrdf=getBRDFLookup(outParams.NdotV,roughness);\n#else\noutParams.environmentBrdf=vec3(0.0);\n#endif\noutParams.horizonOcclusion=1.0;\n#if defined(ENVIRONMENTBRDF) && !defined(REFLECTIONMAP_SKYBOX)\n#ifdef HORIZONOCCLUSION\n#if defined(GEOMETRY_NORMAL) || defined(GEOMETRY_COAT_NORMAL)\n#ifdef REFLECTIONMAP_3D\noutParams.horizonOcclusion=environmentHorizonOcclusion(-viewDirectionW,normalW,geometricNormalW);\n#endif\n#endif\n#endif\n#endif\nreturn outParams;}\n#define pbr_inline\ngeometryInfoAnisoOutParams geometryInfoAniso(\nin vec3 normalW,in vec3 viewDirectionW,in float roughness,in vec3 geometricNormalW\n,in vec3 vAnisotropy,in mat3 TBN\n)\n{geometryInfoOutParams geoInfo=geometryInfo(normalW,viewDirectionW,roughness,geometricNormalW);geometryInfoAnisoOutParams outParams;outParams.NdotV=geoInfo.NdotV;outParams.NdotVUnclamped=geoInfo.NdotVUnclamped;outParams.environmentBrdf=geoInfo.environmentBrdf;outParams.horizonOcclusion=geoInfo.horizonOcclusion;outParams.anisotropy=vAnisotropy.b;vec3 anisotropyDirection=vec3(vAnisotropy.xy,0.);mat3 anisoTBN=mat3(normalize(TBN[0]),normalize(TBN[1]),normalize(TBN[2]));outParams.anisotropicTangent=normalize(anisoTBN*anisotropyDirection);outParams.anisotropicBitangent=normalize(cross(anisoTBN[2],outParams.anisotropicTangent));outParams.TBN=TBN;return outParams;}";e.IncludesShadersStore[c]||(e.IncludesShadersStore[c]=s);const f={name:c,shader:s},l="openpbrIblFunctions",d="#ifdef REFLECTION\nvec3 sampleIrradiance(\nin vec3 surfaceNormal\n#if defined(NORMAL) && defined(USESPHERICALINVERTEX)\n,in vec3 vEnvironmentIrradianceSH\n#endif\n#if (defined(USESPHERICALFROMREFLECTIONMAP) && (!defined(NORMAL) || !defined(USESPHERICALINVERTEX))) || (defined(USEIRRADIANCEMAP) && defined(REFLECTIONMAP_3D))\n,in mat4 iblMatrix\n#endif\n#ifdef USEIRRADIANCEMAP\n#ifdef REFLECTIONMAP_3D\n,in samplerCube irradianceSampler\n#else\n,in sampler2D irradianceSampler\n#endif\n#ifdef USE_IRRADIANCE_DOMINANT_DIRECTION\n,in vec3 reflectionDominantDirection\n#endif\n#endif\n#ifdef REALTIME_FILTERING\n,in vec2 vReflectionFilteringInfo\n#ifdef IBL_CDF_FILTERING\n,in sampler2D icdfSampler\n#endif\n#endif\n,in vec2 vReflectionInfos\n,in vec3 viewDirectionW\n,in float diffuseRoughness\n,in vec3 surfaceAlbedo\n) {vec3 environmentIrradiance=vec3(0.,0.,0.);\n#if (defined(USESPHERICALFROMREFLECTIONMAP) && (!defined(NORMAL) || !defined(USESPHERICALINVERTEX))) || (defined(USEIRRADIANCEMAP) && defined(REFLECTIONMAP_3D))\nvec3 irradianceVector=(iblMatrix*vec4(surfaceNormal,0)).xyz;vec3 irradianceView=(iblMatrix*vec4(viewDirectionW,0)).xyz;\n#if !defined(USE_IRRADIANCE_DOMINANT_DIRECTION) && !defined(REALTIME_FILTERING)\n#if BASE_DIFFUSE_MODEL != BRDF_DIFFUSE_MODEL_LAMBERT && BASE_DIFFUSE_MODEL != BRDF_DIFFUSE_MODEL_LEGACY\n{float NdotV=max(dot(surfaceNormal,viewDirectionW),0.0);irradianceVector=mix(irradianceVector,irradianceView,(0.5*(1.0-NdotV))*diffuseRoughness);}\n#endif\n#endif\n#ifdef REFLECTIONMAP_OPPOSITEZ\nirradianceVector.z*=-1.0;irradianceView.z*=-1.0;\n#endif\n#ifdef INVERTCUBICMAP\nirradianceVector.y*=-1.0;irradianceView.y*=-1.0;\n#endif\n#endif\n#ifdef USESPHERICALFROMREFLECTIONMAP\n#if defined(NORMAL) && defined(USESPHERICALINVERTEX)\nenvironmentIrradiance=vEnvironmentIrradianceSH;\n#else\n#if defined(REALTIME_FILTERING)\nenvironmentIrradiance=irradiance(reflectionSampler,irradianceVector,vReflectionFilteringInfo,diffuseRoughness,surfaceAlbedo,irradianceView\n#ifdef IBL_CDF_FILTERING\n,icdfSampler\n#endif\n);\n#else\nenvironmentIrradiance=computeEnvironmentIrradiance(irradianceVector);\n#endif\n#endif\n#elif defined(USEIRRADIANCEMAP)\n#ifdef REFLECTIONMAP_3D\nvec4 environmentIrradianceFromTexture=sampleReflection(irradianceSampler,irradianceVector);\n#else\nvec4 environmentIrradianceFromTexture=sampleReflection(irradianceSampler,reflectionCoords);\n#endif\nenvironmentIrradiance=environmentIrradianceFromTexture.rgb;\n#ifdef RGBDREFLECTION\nenvironmentIrradiance.rgb=fromRGBD(environmentIrradianceFromTexture);\n#endif\n#ifdef GAMMAREFLECTION\nenvironmentIrradiance.rgb=toLinearSpace(environmentIrradiance.rgb);\n#endif\n#ifdef USE_IRRADIANCE_DOMINANT_DIRECTION\nvec3 Ls=normalize(reflectionDominantDirection);float NoL=dot(irradianceVector,Ls);float NoV=dot(irradianceVector,irradianceView);vec3 diffuseRoughnessTerm=vec3(1.0);\n#if BASE_DIFFUSE_MODEL==BRDF_DIFFUSE_MODEL_EON\nfloat LoV=dot (Ls,irradianceView);float mag=length(reflectionDominantDirection)*2.0;vec3 clampedAlbedo=clamp(surfaceAlbedo,vec3(0.1),vec3(1.0));diffuseRoughnessTerm=diffuseBRDF_EON(clampedAlbedo,diffuseRoughness,NoL,NoV,LoV)*PI;diffuseRoughnessTerm=diffuseRoughnessTerm/clampedAlbedo;diffuseRoughnessTerm=mix(vec3(1.0),diffuseRoughnessTerm,sqrt(clamp(mag*NoV,0.0,1.0)));\n#elif BASE_DIFFUSE_MODEL==BRDF_DIFFUSE_MODEL_BURLEY\nvec3 H=(irradianceView+Ls)*0.5;float VoH=dot(irradianceView,H);diffuseRoughnessTerm=vec3(diffuseBRDF_Burley(NoL,NoV,VoH,diffuseRoughness)*PI);\n#endif\nenvironmentIrradiance=environmentIrradiance.rgb*diffuseRoughnessTerm;\n#endif\n#endif\nenvironmentIrradiance*=vReflectionInfos.x;return environmentIrradiance;}\n#define pbr_inline\n#ifdef REFLECTIONMAP_3D\nvec3 createReflectionCoords(\n#else\nvec2 createReflectionCoords(\n#endif\nin vec3 vPositionW\n,in vec3 normalW\n)\n{vec3 reflectionVector=computeReflectionCoords(vec4(vPositionW,1.0),normalW);\n#ifdef REFLECTIONMAP_OPPOSITEZ\nreflectionVector.z*=-1.0;\n#endif\n#ifdef REFLECTIONMAP_3D\nvec3 reflectionCoords=reflectionVector;\n#else\nvec2 reflectionCoords=reflectionVector.xy;\n#ifdef REFLECTIONMAP_PROJECTION\nreflectionCoords/=reflectionVector.z;\n#endif\nreflectionCoords.y=1.0-reflectionCoords.y;\n#endif\nreturn reflectionCoords;}\n#define pbr_inline\n#define inline\nvec3 sampleRadiance(\nin float alphaG\n,in vec3 vReflectionMicrosurfaceInfos\n,in vec2 vReflectionInfos\n,in geometryInfoOutParams geoInfo\n#ifdef REFLECTIONMAP_3D\n,in samplerCube reflectionSampler\n,const vec3 reflectionCoords\n#else\n,in sampler2D reflectionSampler\n,const vec2 reflectionCoords\n#endif\n#ifdef REALTIME_FILTERING\n,in vec2 vReflectionFilteringInfo\n#endif\n)\n{vec4 environmentRadiance=vec4(0.,0.,0.,0.);\n#if defined(LODINREFLECTIONALPHA) && !defined(REFLECTIONMAP_SKYBOX)\nfloat reflectionLOD=getLodFromAlphaG(vReflectionMicrosurfaceInfos.x,alphaG,geoInfo.NdotVUnclamped);\n#elif defined(LINEARSPECULARREFLECTION)\nfloat reflectionLOD=getLinearLodFromRoughness(vReflectionMicrosurfaceInfos.x,roughness);\n#else\nfloat reflectionLOD=getLodFromAlphaG(vReflectionMicrosurfaceInfos.x,alphaG);\n#endif\nreflectionLOD=reflectionLOD*vReflectionMicrosurfaceInfos.y+vReflectionMicrosurfaceInfos.z;\n#ifdef REALTIME_FILTERING\nenvironmentRadiance=vec4(radiance(alphaG,reflectionSampler,reflectionCoords,vReflectionFilteringInfo),1.0);\n#else\nenvironmentRadiance=sampleReflectionLod(reflectionSampler,reflectionCoords,reflectionLOD);\n#endif\n#ifdef RGBDREFLECTION\nenvironmentRadiance.rgb=fromRGBD(environmentRadiance);\n#endif\n#ifdef GAMMAREFLECTION\nenvironmentRadiance.rgb=toLinearSpace(environmentRadiance.rgb);\n#endif\nenvironmentRadiance.rgb*=vec3(vReflectionInfos.x);return environmentRadiance.rgb;}\n#if defined(ANISOTROPIC)\n#define pbr_inline\n#define inline\nvec3 sampleRadianceAnisotropic(\nin float alphaG\n,in vec3 vReflectionMicrosurfaceInfos\n,in vec2 vReflectionInfos\n,in geometryInfoAnisoOutParams geoInfo\n,const vec3 normalW\n,const vec3 viewDirectionW\n,const vec3 positionW\n,const vec3 noise\n,bool isRefraction\n,float ior\n#ifdef REFLECTIONMAP_3D\n,in samplerCube reflectionSampler\n#else\n,in sampler2D reflectionSampler\n#endif\n#ifdef REALTIME_FILTERING\n,in vec2 vReflectionFilteringInfo\n#endif\n)\n{vec4 environmentRadiance=vec4(0.,0.,0.,0.);float alphaT=alphaG*sqrt(2.0/(1.0+(1.0-geoInfo.anisotropy)*(1.0-geoInfo.anisotropy)));float alphaB=(1.0-geoInfo.anisotropy)*alphaT;alphaG=alphaB;\n#if defined(LODINREFLECTIONALPHA) && !defined(REFLECTIONMAP_SKYBOX)\nfloat reflectionLOD=getLodFromAlphaG(vReflectionMicrosurfaceInfos.x,alphaG,geoInfo.NdotVUnclamped);\n#elif defined(LINEARSPECULARREFLECTION)\nfloat reflectionLOD=getLinearLodFromRoughness(vReflectionMicrosurfaceInfos.x,roughness);\n#else\nfloat reflectionLOD=getLodFromAlphaG(vReflectionMicrosurfaceInfos.x,alphaG);\n#endif\nreflectionLOD=reflectionLOD*vReflectionMicrosurfaceInfos.y+vReflectionMicrosurfaceInfos.z;\n#ifdef REALTIME_FILTERING\nvec3 view=(reflectionMatrix*vec4(viewDirectionW,0.0)).xyz;vec3 tangent=(reflectionMatrix*vec4(geoInfo.anisotropicTangent,0.0)).xyz;vec3 bitangent=(reflectionMatrix*vec4(geoInfo.anisotropicBitangent,0.0)).xyz;vec3 normal=(reflectionMatrix*vec4(normalW,0.0)).xyz;\n#ifdef REFLECTIONMAP_OPPOSITEZ\nview.z*=-1.0;tangent.z*=-1.0;bitangent.z*=-1.0;normal.z*=-1.0;\n#endif\nenvironmentRadiance =\nvec4(radianceAnisotropic(alphaT,alphaB,reflectionSampler,\nview,tangent,\nbitangent,normal,\nvReflectionFilteringInfo,noise.xy,isRefraction,ior),\n1.0);\n#else\nconst int samples=16;vec4 radianceSample=vec4(0.0);vec3 reflectionCoords=vec3(0.0);float sample_weight=0.0;float total_weight=0.0;float step=1.0/float(max(samples-1,1));for (int i=0; i<samples; ++i) {float t=mix(-1.0,1.0,float(i)*step);t+=step*2.0*noise.x;sample_weight=max(1.0-abs(t),0.001);sample_weight*=sample_weight;t*=min(4.0*alphaT*geoInfo.anisotropy,1.0);vec3 bentNormal;if (t<0.0) {float blend=t+1.0;bentNormal=normalize(mix(-geoInfo.anisotropicTangent,normalW,blend));} else if (t>0.0) {float blend=t;bentNormal=normalize(mix(normalW,geoInfo.anisotropicTangent,blend));} else {bentNormal=normalW;}\nif (isRefraction) {reflectionCoords=double_refract(-viewDirectionW,bentNormal,ior);} else {reflectionCoords=reflect(-viewDirectionW,bentNormal);}\nreflectionCoords=vec3(reflectionMatrix*vec4(reflectionCoords,0));\n#ifdef REFLECTIONMAP_OPPOSITEZ\nreflectionCoords.z*=-1.0;\n#endif\nradianceSample=sampleReflectionLod(reflectionSampler,reflectionCoords,reflectionLOD);\n#ifdef RGBDREFLECTION\nenvironmentRadiance.rgb+=sample_weight*fromRGBD(radianceSample);\n#elif defined(GAMMAREFLECTION)\nenvironmentRadiance.rgb+=sample_weight*toLinearSpace(radianceSample.rgb);\n#else\nenvironmentRadiance.rgb+=sample_weight*radianceSample.rgb;\n#endif\ntotal_weight+=sample_weight;}\nenvironmentRadiance=vec4(environmentRadiance.xyz/float(total_weight),1.0);\n#endif\nenvironmentRadiance.rgb*=vec3(vReflectionInfos.x);return environmentRadiance.rgb;}\n#endif\n#endif\n#if defined(ENVIRONMENTBRDF)\n#define pbr_inline\nfloat computeDielectricIblFresnel(in ReflectanceParams reflectance,in vec3 environmentBrdf)\n{float dielectricIblFresnel=getReflectanceFromBRDFLookup(vec3(reflectance.F0),vec3(reflectance.F90),environmentBrdf).r;float dielectricECF=1.0+reflectance.F0*(1.0/environmentBrdf.y-1.0);return clamp(dielectricIblFresnel*dielectricECF,0.0,1.0);}\n#define pbr_inline\nvec3 computeConductorIblFresnel(in ReflectanceParams reflectance,in vec3 environmentBrdf)\n{\n#if (CONDUCTOR_SPECULAR_MODEL==CONDUCTOR_SPECULAR_MODEL_OPENPBR) && defined(ENVIRONMENTBRDF)\nvec3 openPBRBrdf=vec3(environmentBrdf.xy,environmentBrdf.z/BRDF_Z_SCALE);vec3 b =getF82B(reflectance.coloredF0,reflectance.coloredF90);vec3 E_F82=getF82DirectionalAlbedo(reflectance.coloredF0,vec3(1.0),b,openPBRBrdf);vec3 F_avg=getF82AverageFresnel(reflectance.coloredF0,b);vec3 ECF =vec3(1.0)+F_avg*(vec3(1.0)/openPBRBrdf.y-vec3(1.0));return clamp(E_F82*ECF,vec3(0.0),vec3(1.0));\n#else\nreturn getReflectanceFromBRDFLookup(reflectance.coloredF0,reflectance.coloredF90,environmentBrdf);\n#endif\n}\n#endif\n";e.IncludesShadersStore[l]||(e.IncludesShadersStore[l]=d);const m={name:l,shader:d},R="openpbrSubsurfaceLayerData",u="float subsurface_weight=vSubsurfaceWeight;vec3 subsurface_color=vSubsurfaceColor.rgb;float subsurface_radius=vSubsurfaceRadius;vec3 subsurface_radius_scale=vSubsurfaceRadiusScale;float subsurface_scatter_anisotropy=clamp(vSubsurfaceScatterAnisotropy,-0.9999,0.9999);\n#ifdef SUBSURFACE_WEIGHT\nvec4 subsurfaceWeightFromTexture=TEXRD(subsurfaceWeightSampler,vSubsurfaceWeightUV+uvOffset);\n#endif\n#ifdef SUBSURFACE_COLOR\nvec4 subsurfaceColorFromTexture=TEXRD(subsurfaceColorSampler,vSubsurfaceColorUV+uvOffset);\n#endif\n#ifdef SUBSURFACE_RADIUS_SCALE\nvec4 subsurfaceRadiusScaleFromTexture=TEXRD(subsurfaceRadiusScaleSampler,vSubsurfaceRadiusScaleUV+uvOffset);\n#endif\n#ifdef SUBSURFACE_WEIGHT\n#ifdef SUBSURFACE_WEIGHT_FROM_TEXTURE_ALPHA\nsubsurface_weight*=subsurfaceWeightFromTexture.a;\n#else\nsubsurface_weight*=subsurfaceWeightFromTexture.r;\n#endif\n#endif\n#ifdef SUBSURFACE_COLOR\n#ifdef SUBSURFACE_COLOR_GAMMA\nsubsurface_color*=toLinearSpace(subsurfaceColorFromTexture.rgb);\n#else\nsubsurface_color*=subsurfaceColorFromTexture.rgb;\n#endif\nsubsurface_color*=vSubsurfaceColorInfos.y;\n#endif\n#ifdef SUBSURFACE_RADIUS_SCALE\nsubsurface_radius_scale*=subsurfaceRadiusScaleFromTexture.rgb;\n#endif\n";e.IncludesShadersStore[R]||(e.IncludesShadersStore[R]=u);const I={name:R,shader:u},v="openpbrTransmissionLayerData",E="float transmission_weight=vTransmissionWeight;vec3 transmission_color=vTransmissionColor.rgb;float transmission_depth=vTransmissionDepth;vec3 transmission_scatter=vTransmissionScatter.rgb;float transmission_scatter_anisotropy=clamp(vTransmissionScatterAnisotropy,-0.9999,0.9999);float transmission_dispersion_scale=vTransmissionDispersionScale;float transmission_dispersion_abbe_number=vTransmissionDispersionAbbeNumber;\n#ifdef TRANSMISSION_WEIGHT\nvec4 transmissionWeightFromTexture=TEXRD(transmissionWeightSampler,vTransmissionWeightUV+uvOffset);\n#endif\n#ifdef TRANSMISSION_COLOR\nvec4 transmissionColorFromTexture=TEXRD(transmissionColorSampler,vTransmissionColorUV+uvOffset);\n#endif\n#ifdef TRANSMISSION_DEPTH\nvec4 transmissionDepthFromTexture=TEXRD(transmissionDepthSampler,vTransmissionDepthUV+uvOffset);\n#endif\n#ifdef TRANSMISSION_SCATTER\nvec4 transmissionScatterFromTexture=TEXRD(transmissionScatterSampler,vTransmissionScatterUV+uvOffset);\n#endif\n#ifdef TRANSMISSION_DISPERSION_SCALE\nvec4 transmissionDispersionScaleFromTexture=TEXRD(transmissionDispersionScaleSampler,vTransmissionDispersionScaleUV+uvOffset);\n#endif\n#ifdef TRANSMISSION_WEIGHT\ntransmission_weight*=transmissionWeightFromTexture.r;\n#endif\n#ifdef TRANSMISSION_COLOR\n#ifdef TRANSMISSION_COLOR_GAMMA\ntransmission_color*=toLinearSpace(transmissionColorFromTexture.rgb);\n#else\ntransmission_color*=transmissionColorFromTexture.rgb;\n#endif\ntransmission_color*=vTransmissionColorInfos.y;\n#endif\n#ifdef TRANSMISSION_DEPTH\ntransmission_depth*=transmissionDepthFromTexture.r;\n#endif\n#ifdef TRANSMISSION_SCATTER\ntransmission_scatter*=transmissionScatterFromTexture.rgb;\n#endif\n#ifdef TRANSMISSION_DISPERSION_SCALE\ntransmission_dispersion_scale*=transmissionDispersionScaleFromTexture.r;\n#endif\n";e.IncludesShadersStore[v]||(e.IncludesShadersStore[v]=E);const S={name:v,shader:E};export{f as a,m as b,I as c,S as d,t as o,r as s};
//# sourceMappingURL=openpbrTransmissionLayerData-CNgPmHmQ.esm.min.js.map