@babylonjs/core/ShadersWGSL/ShadersInclude/pbrBlockReflection.js

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// Do not edit.
import { ShaderStore } from "../../Engines/shaderStore.js";
const name = "pbrBlockReflection";
const shader = `#ifdef REFLECTION
struct reflectionOutParams
{environmentRadiance: vec4f
,environmentIrradiance: vec3f
#ifdef REFLECTIONMAP_3D
,reflectionCoords: vec3f
#else
,reflectionCoords: vec2f
#endif
#ifdef SS_TRANSLUCENCY
#ifdef USESPHERICALFROMREFLECTIONMAP
#if !defined(NORMAL) || !defined(USESPHERICALINVERTEX)
,irradianceVector: vec3f
#endif
#endif
#endif
};
#define pbr_inline
#ifdef REFLECTIONMAP_3D
fn createReflectionCoords(
vPositionW: vec3f,
normalW: vec3f,
#ifdef ANISOTROPIC
anisotropicOut: anisotropicOutParams,
#endif
)->vec3f
{var reflectionCoords: vec3f;
#else
fn createReflectionCoords(
vPositionW: vec3f,
normalW: vec3f,
#ifdef ANISOTROPIC
anisotropicOut: anisotropicOutParams,
#endif
)->vec2f
{ 
var reflectionCoords: vec2f;
#endif
#ifdef ANISOTROPIC
var reflectionVector: vec3f=computeReflectionCoords( vec4f(vPositionW,1.0),anisotropicOut.anisotropicNormal);
#else
var reflectionVector: vec3f=computeReflectionCoords( vec4f(vPositionW,1.0),normalW);
#endif
#ifdef REFLECTIONMAP_OPPOSITEZ
reflectionVector.z*=-1.0;
#endif
#ifdef REFLECTIONMAP_3D
reflectionCoords=reflectionVector;
#else
reflectionCoords=reflectionVector.xy;
#ifdef REFLECTIONMAP_PROJECTION
reflectionCoords/=reflectionVector.z;
#endif
reflectionCoords.y=1.0-reflectionCoords.y;
#endif
return reflectionCoords;}
#define pbr_inline
fn sampleReflectionTexture(
alphaG: f32
,vReflectionMicrosurfaceInfos: vec3f
,vReflectionInfos: vec2f
,vReflectionColor: vec3f
#if defined(LODINREFLECTIONALPHA) && !defined(REFLECTIONMAP_SKYBOX)
,NdotVUnclamped: f32
#endif
#ifdef LINEARSPECULARREFLECTION
,roughness: f32
#endif
#ifdef REFLECTIONMAP_3D
,reflectionSampler: texture_cube<f32>
,reflectionSamplerSampler: sampler
,reflectionCoords: vec3f
#else
,reflectionSampler: texture_2d<f32>
,reflectionSamplerSampler: sampler
,reflectionCoords: vec2f
#endif
#ifndef LODBASEDMICROSFURACE
#ifdef REFLECTIONMAP_3D
,reflectionLowSampler: texture_cube<f32>
,reflectionLowSamplerSampler: sampler
,reflectionHighSampler: texture_cube<f32>
,reflectionHighSamplerSampler: sampler
#else
,reflectionLowSampler: texture_2d<f32>
,reflectionLowSamplerSampler: sampler
,reflectionHighSampler: texture_2d<f32>
,reflectionHighSamplerSampler: sampler
#endif
#endif
#ifdef REALTIME_FILTERING
,vReflectionFilteringInfo: vec2f
#endif 
)->vec4f
{var environmentRadiance: vec4f;
#if defined(LODINREFLECTIONALPHA) && !defined(REFLECTIONMAP_SKYBOX)
var reflectionLOD: f32=getLodFromAlphaGNdotV(vReflectionMicrosurfaceInfos.x,alphaG,NdotVUnclamped);
#elif defined(LINEARSPECULARREFLECTION)
var reflectionLOD: f32=getLinearLodFromRoughness(vReflectionMicrosurfaceInfos.x,roughness);
#else
var reflectionLOD: f32=getLodFromAlphaG(vReflectionMicrosurfaceInfos.x,alphaG);
#endif
#ifdef LODBASEDMICROSFURACE
reflectionLOD=reflectionLOD*vReflectionMicrosurfaceInfos.y+vReflectionMicrosurfaceInfos.z;
#ifdef LODINREFLECTIONALPHA
var automaticReflectionLOD: f32=UNPACK_LOD(textureSample(reflectionSampler,reflectionSamplerSampler,reflectionCoords).a);var requestedReflectionLOD: f32=max(automaticReflectionLOD,reflectionLOD);
#else
var requestedReflectionLOD: f32=reflectionLOD;
#endif
#ifdef REALTIME_FILTERING
environmentRadiance= vec4f(radiance(alphaG,reflectionSampler,reflectionSamplerSampler,reflectionCoords,vReflectionFilteringInfo),1.0);
#else
environmentRadiance=textureSampleLevel(reflectionSampler,reflectionSamplerSampler,reflectionCoords,reflectionLOD);
#endif
#else
var lodReflectionNormalized: f32=saturate(reflectionLOD/log2(vReflectionMicrosurfaceInfos.x));var lodReflectionNormalizedDoubled: f32=lodReflectionNormalized*2.0;var environmentMid: vec4f=textureSample(reflectionSampler,reflectionSamplerSampler,reflectionCoords);if (lodReflectionNormalizedDoubled<1.0){environmentRadiance=mix(
textureSample(reflectionHighSampler,reflectionHighSamplerSampler,reflectionCoords),
environmentMid,
lodReflectionNormalizedDoubled
);} else {environmentRadiance=mix(
environmentMid,
textureSample(reflectionLowSampler,reflectionLowSamplerSampler,reflectionCoords),
lodReflectionNormalizedDoubled-1.0
);}
#endif
var envRadiance=environmentRadiance.rgb;
#ifdef RGBDREFLECTION
envRadiance=fromRGBD(environmentRadiance);
#endif
#ifdef GAMMAREFLECTION
envRadiance=toLinearSpaceVec3(environmentRadiance.rgb);
#endif
envRadiance*=vReflectionInfos.x;envRadiance*=vReflectionColor.rgb;return vec4f(envRadiance,environmentRadiance.a);}
#define pbr_inline
fn reflectionBlock(
vPositionW: vec3f
,normalW: vec3f
,alphaG: f32
,vReflectionMicrosurfaceInfos: vec3f
,vReflectionInfos: vec2f
,vReflectionColor: vec3f
#ifdef ANISOTROPIC
,anisotropicOut: anisotropicOutParams
#endif
#if defined(LODINREFLECTIONALPHA) && !defined(REFLECTIONMAP_SKYBOX)
,NdotVUnclamped: f32
#endif
#ifdef LINEARSPECULARREFLECTION
,roughness: f32
#endif
#ifdef REFLECTIONMAP_3D
,reflectionSampler: texture_cube<f32>
,reflectionSamplerSampler: sampler
#else
,reflectionSampler: texture_2d<f32>
,reflectionSamplerSampler: sampler
#endif
#if defined(NORMAL) && defined(USESPHERICALINVERTEX)
,vEnvironmentIrradiance: vec3f
#endif
#if (defined(USESPHERICALFROMREFLECTIONMAP) && (!defined(NORMAL) || !defined(USESPHERICALINVERTEX))) || (defined(USEIRRADIANCEMAP) && defined(REFLECTIONMAP_3D))
,reflectionMatrix: mat4x4f
#endif
#ifdef USEIRRADIANCEMAP
#ifdef REFLECTIONMAP_3D
,irradianceSampler: texture_cube<f32>
,irradianceSamplerSampler: sampler 
#else
,irradianceSampler: texture_2d<f32>
,irradianceSamplerSampler: sampler 
#endif
#ifdef USE_IRRADIANCE_DOMINANT_DIRECTION
,reflectionDominantDirection: vec3f
#endif
#endif
#ifndef LODBASEDMICROSFURACE
#ifdef REFLECTIONMAP_3D
,reflectionLowSampler: texture_cube<f32>
,reflectionLowSamplerSampler: sampler 
,reflectionHighSampler: texture_cube<f32>
,reflectionHighSamplerSampler: sampler 
#else
,reflectionLowSampler: texture_2d<f32>
,reflectionLowSamplerSampler: sampler 
,reflectionHighSampler: texture_2d<f32>
,reflectionHighSamplerSampler: sampler 
#endif
#endif
#ifdef REALTIME_FILTERING
,vReflectionFilteringInfo: vec2f
#ifdef IBL_CDF_FILTERING
,icdfSampler: texture_2d<f32>
,icdfSamplerSampler: sampler
#endif
#endif
,viewDirectionW: vec3f
,diffuseRoughness: f32
,surfaceAlbedo: vec3f
)->reflectionOutParams
{var outParams: reflectionOutParams;var environmentRadiance: vec4f= vec4f(0.,0.,0.,0.);
#ifdef REFLECTIONMAP_3D
var reflectionCoords: vec3f= vec3f(0.);
#else
var reflectionCoords: vec2f= vec2f(0.);
#endif
reflectionCoords=createReflectionCoords(
vPositionW,
normalW,
#ifdef ANISOTROPIC
anisotropicOut,
#endif 
);environmentRadiance=sampleReflectionTexture(
alphaG
,vReflectionMicrosurfaceInfos
,vReflectionInfos
,vReflectionColor
#if defined(LODINREFLECTIONALPHA) && !defined(REFLECTIONMAP_SKYBOX)
,NdotVUnclamped
#endif
#ifdef LINEARSPECULARREFLECTION
,roughness
#endif
#ifdef REFLECTIONMAP_3D
,reflectionSampler
,reflectionSamplerSampler
,reflectionCoords
#else
,reflectionSampler
,reflectionSamplerSampler
,reflectionCoords
#endif
#ifndef LODBASEDMICROSFURACE
,reflectionLowSampler
,reflectionLowSamplerSampler
,reflectionHighSampler
,reflectionHighSamplerSampler
#endif
#ifdef REALTIME_FILTERING
,vReflectionFilteringInfo
#endif 
);var environmentIrradiance: vec3f= vec3f(0.,0.,0.);
#if (defined(USESPHERICALFROMREFLECTIONMAP) && (!defined(NORMAL) || !defined(USESPHERICALINVERTEX))) || (defined(USEIRRADIANCEMAP) && defined(REFLECTIONMAP_3D))
#ifdef ANISOTROPIC
var irradianceVector: vec3f= (reflectionMatrix* vec4f(anisotropicOut.anisotropicNormal,0)).xyz;
#else
var irradianceVector: vec3f= (reflectionMatrix* vec4f(normalW,0)).xyz;
#endif
var irradianceView: vec3f= (reflectionMatrix* vec4f(viewDirectionW,0)).xyz;
#if !defined(USE_IRRADIANCE_DOMINANT_DIRECTION) && !defined(REALTIME_FILTERING)
#if BASE_DIFFUSE_MODEL != BRDF_DIFFUSE_MODEL_LAMBERT && BASE_DIFFUSE_MODEL != BRDF_DIFFUSE_MODEL_LEGACY
var NdotV: f32=max(dot(normalW,viewDirectionW),0.0);irradianceVector=mix(irradianceVector,irradianceView,(0.5*(1.0-NdotV))*diffuseRoughness);
#endif
#endif
#ifdef REFLECTIONMAP_OPPOSITEZ
irradianceVector.z*=-1.0;
#endif
#ifdef INVERTCUBICMAP
irradianceVector.y*=-1.0;
#endif
#endif
#ifdef USESPHERICALFROMREFLECTIONMAP
#if defined(NORMAL) && defined(USESPHERICALINVERTEX)
environmentIrradiance=vEnvironmentIrradiance;
#else
#if defined(REALTIME_FILTERING)
environmentIrradiance=irradiance(reflectionSampler,reflectionSamplerSampler,irradianceVector,vReflectionFilteringInfo,diffuseRoughness,surfaceAlbedo,irradianceView
#ifdef IBL_CDF_FILTERING
,icdfSampler
,icdfSamplerSampler
#endif
);
#else
environmentIrradiance=computeEnvironmentIrradiance(irradianceVector);
#endif
#ifdef SS_TRANSLUCENCY
outParams.irradianceVector=irradianceVector;
#endif
#endif
#elif defined(USEIRRADIANCEMAP)
#ifdef REFLECTIONMAP_3D
var environmentIrradiance4: vec4f=textureSample(irradianceSampler,irradianceSamplerSampler,irradianceVector);
#else
var environmentIrradiance4: vec4f=textureSample(irradianceSampler,irradianceSamplerSampler,reflectionCoords);
#endif
#ifdef USE_IRRADIANCE_DOMINANT_DIRECTION
var Ls: vec3f=normalize(reflectionDominantDirection);var NoL: f32=dot(irradianceVector,Ls);var NoV: f32=dot(irradianceVector,irradianceView);var diffuseRoughnessTerm: vec3f=vec3f(1.0);
#if BASE_DIFFUSE_MODEL==BRDF_DIFFUSE_MODEL_EON
var LoV: f32=dot(Ls,irradianceView);var mag: f32=length(reflectionDominantDirection)*2.0f;var clampedAlbedo: vec3f=clamp(surfaceAlbedo,vec3f(0.1),vec3f(1.0));diffuseRoughnessTerm=diffuseBRDF_EON(clampedAlbedo,diffuseRoughness,NoL,NoV,LoV)*PI;diffuseRoughnessTerm=diffuseRoughnessTerm/clampedAlbedo;diffuseRoughnessTerm=mix(vec3f(1.0),diffuseRoughnessTerm,sqrt(clamp(mag*NoV,0.0,1.0f)));
#elif BASE_DIFFUSE_MODEL==BRDF_DIFFUSE_MODEL_BURLEY
var H: vec3f=(irradianceView+Ls)*0.5f;var VoH: f32=dot(irradianceView,H);diffuseRoughnessTerm=vec3f(diffuseBRDF_Burley(NoL,NoV,VoH,diffuseRoughness)*PI);
#endif
environmentIrradiance=environmentIrradiance4.rgb*diffuseRoughnessTerm;
#else
environmentIrradiance=environmentIrradiance4.rgb;
#endif
#ifdef RGBDREFLECTION
environmentIrradiance=fromRGBD(environmentIrradiance4);
#endif
#ifdef GAMMAREFLECTION
environmentIrradiance=toLinearSpaceVec3(environmentIrradiance.rgb);
#endif
#endif
environmentIrradiance*=vReflectionColor.rgb*vReflectionInfos.x;
#ifdef MIX_IBL_RADIANCE_WITH_IRRADIANCE
outParams.environmentRadiance=vec4f(mix(environmentRadiance.rgb,environmentIrradiance,alphaG),environmentRadiance.a);
#else
outParams.environmentRadiance=environmentRadiance;
#endif
outParams.environmentIrradiance=environmentIrradiance;outParams.reflectionCoords=reflectionCoords;return outParams;}
#endif
`;
// Sideeffect
if (!ShaderStore.IncludesShadersStoreWGSL[name]) {
    ShaderStore.IncludesShadersStoreWGSL[name] = shader;
}
/** @internal */
export const pbrBlockReflectionWGSL = { name, shader };
//# sourceMappingURL=pbrBlockReflection.js.map