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

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// Do not edit.
import { ShaderStore } from "../../Engines/shaderStore.js";
const name = "shadowsFragmentFunctions";
const shader = `#ifdef SHADOWS
#ifndef SHADOWFLOAT
fn unpack(color: vec4f)->f32
{const bit_shift: vec4f= vec4f(1.0/(255.0*255.0*255.0),1.0/(255.0*255.0),1.0/255.0,1.0);return dot(color,bit_shift);}
#endif
fn computeFallOff(value: f32,clipSpace: vec2f,frustumEdgeFalloff: f32)->f32
{var mask: f32=smoothstep(1.0-frustumEdgeFalloff,1.00000012,clamp(dot(clipSpace,clipSpace),0.,1.));return mix(value,1.0,mask);}
fn computeShadowCube(worldPos: vec3f,lightPosition: vec3f,shadowTexture: texture_cube<f32>,shadowSampler: sampler,darkness: f32,depthValues: vec2f)->f32
{var directionToLight: vec3f=worldPos-lightPosition;var depth: f32=length(directionToLight);depth=(depth+depthValues.x)/(depthValues.y);depth=clamp(depth,0.,1.0);directionToLight=normalize(directionToLight);directionToLight.y=-directionToLight.y;
#ifndef SHADOWFLOAT
var shadow: f32=unpack(textureSample(shadowTexture,shadowSampler,directionToLight));
#else
var shadow: f32=textureSample(shadowTexture,shadowSampler,directionToLight).x;
#endif
return select(1.0,darkness,depth>shadow);}
fn computeShadowWithPoissonSamplingCube(worldPos: vec3f,lightPosition: vec3f,shadowTexture: texture_cube<f32>,shadowSampler: sampler,mapSize: f32,darkness: f32,depthValues: vec2f)->f32
{var directionToLight: vec3f=worldPos-lightPosition;var depth: f32=length(directionToLight);depth=(depth+depthValues.x)/(depthValues.y);depth=clamp(depth,0.,1.0);directionToLight=normalize(directionToLight);directionToLight.y=-directionToLight.y;var visibility: f32=1.;var poissonDisk: array<vec3f,4>;poissonDisk[0]= vec3f(-1.0,1.0,-1.0);poissonDisk[1]= vec3f(1.0,-1.0,-1.0);poissonDisk[2]= vec3f(-1.0,-1.0,-1.0);poissonDisk[3]= vec3f(1.0,-1.0,1.0);
#ifndef SHADOWFLOAT
if (unpack(textureSample(shadowTexture,shadowSampler,directionToLight+poissonDisk[0]*mapSize))<depth) {visibility-=0.25;};if (unpack(textureSample(shadowTexture,shadowSampler,directionToLight+poissonDisk[1]*mapSize))<depth) {visibility-=0.25;};if (unpack(textureSample(shadowTexture,shadowSampler,directionToLight+poissonDisk[2]*mapSize))<depth) {visibility-=0.25;};if (unpack(textureSample(shadowTexture,shadowSampler,directionToLight+poissonDisk[3]*mapSize))<depth) {visibility-=0.25;};
#else
if (textureSample(shadowTexture,shadowSampler,directionToLight+poissonDisk[0]*mapSize).x<depth) {visibility-=0.25;};if (textureSample(shadowTexture,shadowSampler,directionToLight+poissonDisk[1]*mapSize).x<depth) {visibility-=0.25;};if (textureSample(shadowTexture,shadowSampler,directionToLight+poissonDisk[2]*mapSize).x<depth) {visibility-=0.25;};if (textureSample(shadowTexture,shadowSampler,directionToLight+poissonDisk[3]*mapSize).x<depth) {visibility-=0.25;};
#endif
return min(1.0,visibility+darkness);}
fn computeShadowWithESMCube(worldPos: vec3f,lightPosition: vec3f,shadowTexture: texture_cube<f32>,shadowSampler: sampler,darkness: f32,depthScale: f32,depthValues: vec2f)->f32
{var directionToLight: vec3f=worldPos-lightPosition;var depth: f32=length(directionToLight);depth=(depth+depthValues.x)/(depthValues.y);var shadowPixelDepth: f32=clamp(depth,0.,1.0);directionToLight=normalize(directionToLight);directionToLight.y=-directionToLight.y;
#ifndef SHADOWFLOAT
var shadowMapSample: f32=unpack(textureSample(shadowTexture,shadowSampler,directionToLight));
#else
var shadowMapSample: f32=textureSample(shadowTexture,shadowSampler,directionToLight).x;
#endif
var esm: f32=1.0-clamp(exp(min(87.,depthScale*shadowPixelDepth))*shadowMapSample,0.,1.-darkness);return esm;}
fn computeShadowWithCloseESMCube(worldPos: vec3f,lightPosition: vec3f,shadowTexture: texture_cube<f32>,shadowSampler: sampler,darkness: f32,depthScale: f32,depthValues: vec2f)->f32
{var directionToLight: vec3f=worldPos-lightPosition;var depth: f32=length(directionToLight);depth=(depth+depthValues.x)/(depthValues.y);var shadowPixelDepth: f32=clamp(depth,0.,1.0);directionToLight=normalize(directionToLight);directionToLight.y=-directionToLight.y;
#ifndef SHADOWFLOAT
var shadowMapSample: f32=unpack(textureSample(shadowTexture,shadowSampler,directionToLight));
#else
var shadowMapSample: f32=textureSample(shadowTexture,shadowSampler,directionToLight).x;
#endif
var esm: f32=clamp(exp(min(87.,-depthScale*(shadowPixelDepth-shadowMapSample))),darkness,1.);return esm;}
fn computeShadowCSM(layer: i32,vPositionFromLight: vec4f,depthMetric: f32,shadowTexture: texture_2d_array<f32>,shadowSampler: sampler,darkness: f32,frustumEdgeFalloff: f32)->f32
{var clipSpace: vec3f=vPositionFromLight.xyz/vPositionFromLight.w;var uv: vec2f=0.5*clipSpace.xy+ vec2f(0.5);var shadowPixelDepth: f32=clamp(depthMetric,0.,1.0);
#ifndef SHADOWFLOAT
var shadow: f32=unpack(textureSample(shadowTexture,shadowSampler,uv,layer));
#else
var shadow: f32=textureSample(shadowTexture,shadowSampler,uv,layer).x;
#endif
return select(1.,computeFallOff(darkness,clipSpace.xy,frustumEdgeFalloff),shadowPixelDepth>shadow );}
fn computeShadow(vPositionFromLight: vec4f,depthMetric: f32,shadowTexture: texture_2d<f32>,shadowSampler: sampler,darkness: f32,frustumEdgeFalloff: f32)->f32
{var clipSpace: vec3f=vPositionFromLight.xyz/vPositionFromLight.w;var uv: vec2f=0.5*clipSpace.xy+ vec2f(0.5);if (uv.x<0. || uv.x>1.0 || uv.y<0. || uv.y>1.0)
{return 1.0;}
else
{var shadowPixelDepth: f32=clamp(depthMetric,0.,1.0);
#ifndef SHADOWFLOAT
var shadow: f32=unpack(textureSampleLevel(shadowTexture,shadowSampler,uv,0.));
#else
var shadow: f32=textureSampleLevel(shadowTexture,shadowSampler,uv,0.).x;
#endif
return select(1.,computeFallOff(darkness,clipSpace.xy,frustumEdgeFalloff),shadowPixelDepth>shadow );}}
fn computeShadowWithPoissonSampling(vPositionFromLight: vec4f,depthMetric: f32,shadowTexture: texture_2d<f32>,shadowSampler: sampler,mapSize: f32,darkness: f32,frustumEdgeFalloff: f32)->f32
{var clipSpace: vec3f=vPositionFromLight.xyz/vPositionFromLight.w;var uv: vec2f=0.5*clipSpace.xy+ vec2f(0.5);if (uv.x<0. || uv.x>1.0 || uv.y<0. || uv.y>1.0)
{return 1.0;}
else
{var shadowPixelDepth: f32=clamp(depthMetric,0.,1.0);var visibility: f32=1.;var poissonDisk: array<vec2f,4>;poissonDisk[0]= vec2f(-0.94201624,-0.39906216);poissonDisk[1]= vec2f(0.94558609,-0.76890725);poissonDisk[2]= vec2f(-0.094184101,-0.92938870);poissonDisk[3]= vec2f(0.34495938,0.29387760);
#ifndef SHADOWFLOAT
if (unpack(textureSampleLevel(shadowTexture,shadowSampler,uv+poissonDisk[0]*mapSize,0.))<shadowPixelDepth) {visibility-=0.25;}
if (unpack(textureSampleLevel(shadowTexture,shadowSampler,uv+poissonDisk[1]*mapSize,0.))<shadowPixelDepth) {visibility-=0.25;}
if (unpack(textureSampleLevel(shadowTexture,shadowSampler,uv+poissonDisk[2]*mapSize,0.))<shadowPixelDepth) {visibility-=0.25;}
if (unpack(textureSampleLevel(shadowTexture,shadowSampler,uv+poissonDisk[3]*mapSize,0.))<shadowPixelDepth) {visibility-=0.25;}
#else
if (textureSampleLevel(shadowTexture,shadowSampler,uv+poissonDisk[0]*mapSize,0.).x<shadowPixelDepth) {visibility-=0.25;}
if (textureSampleLevel(shadowTexture,shadowSampler,uv+poissonDisk[1]*mapSize,0.).x<shadowPixelDepth) {visibility-=0.25;}
if (textureSampleLevel(shadowTexture,shadowSampler,uv+poissonDisk[2]*mapSize,0.).x<shadowPixelDepth) {visibility-=0.25;}
if (textureSampleLevel(shadowTexture,shadowSampler,uv+poissonDisk[3]*mapSize,0.).x<shadowPixelDepth) {visibility-=0.25;}
#endif
return computeFallOff(min(1.0,visibility+darkness),clipSpace.xy,frustumEdgeFalloff);}}
fn computeShadowWithESM(vPositionFromLight: vec4f,depthMetric: f32,shadowTexture: texture_2d<f32>,shadowSampler: sampler,darkness: f32,depthScale: f32,frustumEdgeFalloff: f32)->f32
{var clipSpace: vec3f=vPositionFromLight.xyz/vPositionFromLight.w;var uv: vec2f=0.5*clipSpace.xy+ vec2f(0.5);if (uv.x<0. || uv.x>1.0 || uv.y<0. || uv.y>1.0)
{return 1.0;}
else
{var shadowPixelDepth: f32=clamp(depthMetric,0.,1.0);
#ifndef SHADOWFLOAT
var shadowMapSample: f32=unpack(textureSampleLevel(shadowTexture,shadowSampler,uv,0.));
#else
var shadowMapSample: f32=textureSampleLevel(shadowTexture,shadowSampler,uv,0.).x;
#endif
var esm: f32=1.0-clamp(exp(min(87.,depthScale*shadowPixelDepth))*shadowMapSample,0.,1.-darkness);return computeFallOff(esm,clipSpace.xy,frustumEdgeFalloff);}}
fn computeShadowWithCloseESM(vPositionFromLight: vec4f,depthMetric: f32,shadowTexture: texture_2d<f32>,shadowSampler: sampler,darkness: f32,depthScale: f32,frustumEdgeFalloff: f32)->f32
{var clipSpace: vec3f=vPositionFromLight.xyz/vPositionFromLight.w;var uv: vec2f=0.5*clipSpace.xy+ vec2f(0.5);if (uv.x<0. || uv.x>1.0 || uv.y<0. || uv.y>1.0)
{return 1.0;}
else
{var shadowPixelDepth: f32=clamp(depthMetric,0.,1.0); 
#ifndef SHADOWFLOAT
var shadowMapSample: f32=unpack(textureSampleLevel(shadowTexture,shadowSampler,uv,0.));
#else
var shadowMapSample: f32=textureSampleLevel(shadowTexture,shadowSampler,uv,0.).x;
#endif
var esm: f32=clamp(exp(min(87.,-depthScale*(shadowPixelDepth-shadowMapSample))),darkness,1.);return computeFallOff(esm,clipSpace.xy,frustumEdgeFalloff);}}
fn getZInClip(clipSpace: vec3f,uvDepth: vec3f)->f32
{
#ifdef IS_NDC_HALF_ZRANGE
return clipSpace.z;
#else
return uvDepth.z;
#endif
}
const GREATEST_LESS_THAN_ONE: f32=0.99999994;
#define DISABLE_UNIFORMITY_ANALYSIS
fn computeShadowWithCSMPCF1(layer: i32,vPositionFromLight: vec4f,depthMetric: f32,shadowTexture: texture_depth_2d_array,shadowSampler: sampler_comparison,darkness: f32,frustumEdgeFalloff: f32)->f32
{var clipSpace: vec3f=vPositionFromLight.xyz/vPositionFromLight.w;var uvDepth: vec3f= vec3f(0.5*clipSpace.xyz+ vec3f(0.5));uvDepth.z=clamp(getZInClip(clipSpace,uvDepth),0.,GREATEST_LESS_THAN_ONE);var shadow: f32=textureSampleCompare(shadowTexture,shadowSampler,uvDepth.xy,layer,uvDepth.z);shadow=mix(darkness,1.,shadow);return computeFallOff(shadow,clipSpace.xy,frustumEdgeFalloff);}
fn computeShadowWithCSMPCF3(layer: i32,vPositionFromLight: vec4f,depthMetric: f32,shadowTexture: texture_depth_2d_array,shadowSampler: sampler_comparison,shadowMapSizeAndInverse: vec2f,darkness: f32,frustumEdgeFalloff: f32)->f32
{var clipSpace: vec3f=vPositionFromLight.xyz/vPositionFromLight.w;var uvDepth: vec3f= vec3f(0.5*clipSpace.xyz+ vec3f(0.5));uvDepth.z=clamp(getZInClip(clipSpace,uvDepth),0.,GREATEST_LESS_THAN_ONE);var uv: vec2f=uvDepth.xy*shadowMapSizeAndInverse.x; 
uv+=0.5; 
var st: vec2f=fract(uv); 
var base_uv: vec2f=floor(uv)-0.5; 
base_uv*=shadowMapSizeAndInverse.y; 
var uvw0: vec2f=3.-2.*st;var uvw1: vec2f=1.+2.*st;var u: vec2f= vec2f((2.-st.x)/uvw0.x-1.,st.x/uvw1.x+1.)*shadowMapSizeAndInverse.y;var v: vec2f= vec2f((2.-st.y)/uvw0.y-1.,st.y/uvw1.y+1.)*shadowMapSizeAndInverse.y;var shadow: f32=0.;shadow+=uvw0.x*uvw0.y*textureSampleCompare(shadowTexture,shadowSampler, base_uv.xy+ vec2f(u[0],v[0]),layer,uvDepth.z);shadow+=uvw1.x*uvw0.y*textureSampleCompare(shadowTexture,shadowSampler, base_uv.xy+ vec2f(u[1],v[0]),layer,uvDepth.z);shadow+=uvw0.x*uvw1.y*textureSampleCompare(shadowTexture,shadowSampler, base_uv.xy+ vec2f(u[0],v[1]),layer,uvDepth.z);shadow+=uvw1.x*uvw1.y*textureSampleCompare(shadowTexture,shadowSampler, base_uv.xy+ vec2f(u[1],v[1]),layer,uvDepth.z);shadow=shadow/16.;shadow=mix(darkness,1.,shadow);return computeFallOff(shadow,clipSpace.xy,frustumEdgeFalloff);}
fn computeShadowWithCSMPCF5(layer: i32,vPositionFromLight: vec4f,depthMetric: f32,shadowTexture: texture_depth_2d_array,shadowSampler: sampler_comparison,shadowMapSizeAndInverse: vec2f,darkness: f32,frustumEdgeFalloff: f32)->f32
{var clipSpace: vec3f=vPositionFromLight.xyz/vPositionFromLight.w;var uvDepth: vec3f= vec3f(0.5*clipSpace.xyz+ vec3f(0.5));uvDepth.z=clamp(getZInClip(clipSpace,uvDepth),0.,GREATEST_LESS_THAN_ONE);var uv: vec2f=uvDepth.xy*shadowMapSizeAndInverse.x; 
uv+=0.5; 
var st: vec2f=fract(uv); 
var base_uv: vec2f=floor(uv)-0.5; 
base_uv*=shadowMapSizeAndInverse.y; 
var uvw0: vec2f=4.-3.*st;var uvw1: vec2f= vec2f(7.);var uvw2: vec2f=1.+3.*st;var u: vec3f= vec3f((3.-2.*st.x)/uvw0.x-2.,(3.+st.x)/uvw1.x,st.x/uvw2.x+2.)*shadowMapSizeAndInverse.y;var v: vec3f= vec3f((3.-2.*st.y)/uvw0.y-2.,(3.+st.y)/uvw1.y,st.y/uvw2.y+2.)*shadowMapSizeAndInverse.y;var shadow: f32=0.;shadow+=uvw0.x*uvw0.y*textureSampleCompare(shadowTexture,shadowSampler, base_uv.xy+ vec2f(u[0],v[0]),layer,uvDepth.z);shadow+=uvw1.x*uvw0.y*textureSampleCompare(shadowTexture,shadowSampler, base_uv.xy+ vec2f(u[1],v[0]),layer,uvDepth.z);shadow+=uvw2.x*uvw0.y*textureSampleCompare(shadowTexture,shadowSampler, base_uv.xy+ vec2f(u[2],v[0]),layer,uvDepth.z);shadow+=uvw0.x*uvw1.y*textureSampleCompare(shadowTexture,shadowSampler, base_uv.xy+ vec2f(u[0],v[1]),layer,uvDepth.z);shadow+=uvw1.x*uvw1.y*textureSampleCompare(shadowTexture,shadowSampler, base_uv.xy+ vec2f(u[1],v[1]),layer,uvDepth.z);shadow+=uvw2.x*uvw1.y*textureSampleCompare(shadowTexture,shadowSampler, base_uv.xy+ vec2f(u[2],v[1]),layer,uvDepth.z);shadow+=uvw0.x*uvw2.y*textureSampleCompare(shadowTexture,shadowSampler, base_uv.xy+ vec2f(u[0],v[2]),layer,uvDepth.z);shadow+=uvw1.x*uvw2.y*textureSampleCompare(shadowTexture,shadowSampler, base_uv.xy+ vec2f(u[1],v[2]),layer,uvDepth.z);shadow+=uvw2.x*uvw2.y*textureSampleCompare(shadowTexture,shadowSampler, base_uv.xy+ vec2f(u[2],v[2]),layer,uvDepth.z);shadow=shadow/144.;shadow=mix(darkness,1.,shadow);return computeFallOff(shadow,clipSpace.xy,frustumEdgeFalloff);}
fn computeShadowWithPCF1(vPositionFromLight: vec4f,depthMetric: f32,shadowTexture: texture_depth_2d,shadowSampler: sampler_comparison,darkness: f32,frustumEdgeFalloff: f32)->f32
{if (depthMetric>1.0 || depthMetric<0.0) {return 1.0;}
else
{var clipSpace: vec3f=vPositionFromLight.xyz/vPositionFromLight.w;var uvDepth: vec3f= vec3f(0.5*clipSpace.xyz+ vec3f(0.5));uvDepth.z=getZInClip(clipSpace,uvDepth);var shadow: f32=textureSampleCompareLevel(shadowTexture,shadowSampler,uvDepth.xy,uvDepth.z);shadow=mix(darkness,1.,shadow);return computeFallOff(shadow,clipSpace.xy,frustumEdgeFalloff);}}
fn computeShadowWithPCF3(vPositionFromLight: vec4f,depthMetric: f32,shadowTexture: texture_depth_2d,shadowSampler: sampler_comparison,shadowMapSizeAndInverse: vec2f,darkness: f32,frustumEdgeFalloff: f32)->f32
{if (depthMetric>1.0 || depthMetric<0.0) {return 1.0;}
else
{var clipSpace: vec3f=vPositionFromLight.xyz/vPositionFromLight.w;var uvDepth: vec3f= vec3f(0.5*clipSpace.xyz+ vec3f(0.5));uvDepth.z=getZInClip(clipSpace,uvDepth);var uv: vec2f=uvDepth.xy*shadowMapSizeAndInverse.x; 
uv+=0.5; 
var st: vec2f=fract(uv); 
var base_uv: vec2f=floor(uv)-0.5; 
base_uv*=shadowMapSizeAndInverse.y; 
var uvw0: vec2f=3.-2.*st;var uvw1: vec2f=1.+2.*st;var u: vec2f= vec2f((2.-st.x)/uvw0.x-1.,st.x/uvw1.x+1.)*shadowMapSizeAndInverse.y;var v: vec2f= vec2f((2.-st.y)/uvw0.y-1.,st.y/uvw1.y+1.)*shadowMapSizeAndInverse.y;var shadow: f32=0.;shadow+=uvw0.x*uvw0.y*textureSampleCompareLevel(shadowTexture,shadowSampler, base_uv.xy+ vec2f(u[0],v[0]),uvDepth.z);shadow+=uvw1.x*uvw0.y*textureSampleCompareLevel(shadowTexture,shadowSampler, base_uv.xy+ vec2f(u[1],v[0]),uvDepth.z);shadow+=uvw0.x*uvw1.y*textureSampleCompareLevel(shadowTexture,shadowSampler, base_uv.xy+ vec2f(u[0],v[1]),uvDepth.z);shadow+=uvw1.x*uvw1.y*textureSampleCompareLevel(shadowTexture,shadowSampler, base_uv.xy+ vec2f(u[1],v[1]),uvDepth.z);shadow=shadow/16.;shadow=mix(darkness,1.,shadow);return computeFallOff(shadow,clipSpace.xy,frustumEdgeFalloff);}}
fn computeShadowWithPCF5(vPositionFromLight: vec4f,depthMetric: f32,shadowTexture: texture_depth_2d,shadowSampler: sampler_comparison,shadowMapSizeAndInverse: vec2f,darkness: f32,frustumEdgeFalloff: f32)->f32
{if (depthMetric>1.0 || depthMetric<0.0) {return 1.0;}
else
{var clipSpace: vec3f=vPositionFromLight.xyz/vPositionFromLight.w;var uvDepth: vec3f= vec3f(0.5*clipSpace.xyz+ vec3f(0.5));uvDepth.z=getZInClip(clipSpace,uvDepth);var uv: vec2f=uvDepth.xy*shadowMapSizeAndInverse.x; 
uv+=0.5; 
var st: vec2f=fract(uv); 
var base_uv: vec2f=floor(uv)-0.5; 
base_uv*=shadowMapSizeAndInverse.y; 
var uvw0: vec2f=4.-3.*st;var uvw1: vec2f= vec2f(7.);var uvw2: vec2f=1.+3.*st;var u: vec3f= vec3f((3.-2.*st.x)/uvw0.x-2.,(3.+st.x)/uvw1.x,st.x/uvw2.x+2.)*shadowMapSizeAndInverse.y;var v: vec3f= vec3f((3.-2.*st.y)/uvw0.y-2.,(3.+st.y)/uvw1.y,st.y/uvw2.y+2.)*shadowMapSizeAndInverse.y;var shadow: f32=0.;shadow+=uvw0.x*uvw0.y*textureSampleCompareLevel(shadowTexture,shadowSampler, base_uv.xy+ vec2f(u[0],v[0]),uvDepth.z);shadow+=uvw1.x*uvw0.y*textureSampleCompareLevel(shadowTexture,shadowSampler, base_uv.xy+ vec2f(u[1],v[0]),uvDepth.z);shadow+=uvw2.x*uvw0.y*textureSampleCompareLevel(shadowTexture,shadowSampler, base_uv.xy+ vec2f(u[2],v[0]),uvDepth.z);shadow+=uvw0.x*uvw1.y*textureSampleCompareLevel(shadowTexture,shadowSampler, base_uv.xy+ vec2f(u[0],v[1]),uvDepth.z);shadow+=uvw1.x*uvw1.y*textureSampleCompareLevel(shadowTexture,shadowSampler, base_uv.xy+ vec2f(u[1],v[1]),uvDepth.z);shadow+=uvw2.x*uvw1.y*textureSampleCompareLevel(shadowTexture,shadowSampler, base_uv.xy+ vec2f(u[2],v[1]),uvDepth.z);shadow+=uvw0.x*uvw2.y*textureSampleCompareLevel(shadowTexture,shadowSampler, base_uv.xy+ vec2f(u[0],v[2]),uvDepth.z);shadow+=uvw1.x*uvw2.y*textureSampleCompareLevel(shadowTexture,shadowSampler, base_uv.xy+ vec2f(u[1],v[2]),uvDepth.z);shadow+=uvw2.x*uvw2.y*textureSampleCompareLevel(shadowTexture,shadowSampler, base_uv.xy+ vec2f(u[2],v[2]),uvDepth.z);shadow=shadow/144.;shadow=mix(darkness,1.,shadow);return computeFallOff(shadow,clipSpace.xy,frustumEdgeFalloff);}}
const PoissonSamplers32: array<vec3f,64>=array<vec3f,64> (
vec3f(0.06407013,0.05409927,0.),
vec3f(0.7366577,0.5789394,0.),
vec3f(-0.6270542,-0.5320278,0.),
vec3f(-0.4096107,0.8411095,0.),
vec3f(0.6849564,-0.4990818,0.),
vec3f(-0.874181,-0.04579735,0.),
vec3f(0.9989998,0.0009880066,0.),
vec3f(-0.004920578,-0.9151649,0.),
vec3f(0.1805763,0.9747483,0.),
vec3f(-0.2138451,0.2635818,0.),
vec3f(0.109845,0.3884785,0.),
vec3f(0.06876755,-0.3581074,0.),
vec3f(0.374073,-0.7661266,0.),
vec3f(0.3079132,-0.1216763,0.),
vec3f(-0.3794335,-0.8271583,0.),
vec3f(-0.203878,-0.07715034,0.),
vec3f(0.5912697,0.1469799,0.),
vec3f(-0.88069,0.3031784,0.),
vec3f(0.5040108,0.8283722,0.),
vec3f(-0.5844124,0.5494877,0.),
vec3f(0.6017799,-0.1726654,0.),
vec3f(-0.5554981,0.1559997,0.),
vec3f(-0.3016369,-0.3900928,0.),
vec3f(-0.5550632,-0.1723762,0.),
vec3f(0.925029,0.2995041,0.),
vec3f(-0.2473137,0.5538505,0.),
vec3f(0.9183037,-0.2862392,0.),
vec3f(0.2469421,0.6718712,0.),
vec3f(0.3916397,-0.4328209,0.),
vec3f(-0.03576927,-0.6220032,0.),
vec3f(-0.04661255,0.7995201,0.),
vec3f(0.4402924,0.3640312,0.),
vec3f(0.),
vec3f(0.),
vec3f(0.),
vec3f(0.),
vec3f(0.),
vec3f(0.),
vec3f(0.),
vec3f(0.),
vec3f(0.),
vec3f(0.),
vec3f(0.),
vec3f(0.),
vec3f(0.),
vec3f(0.),
vec3f(0.),
vec3f(0.),
vec3f(0.),
vec3f(0.),
vec3f(0.),
vec3f(0.),
vec3f(0.),
vec3f(0.),
vec3f(0.),
vec3f(0.),
vec3f(0.),
vec3f(0.),
vec3f(0.),
vec3f(0.),
vec3f(0.),
vec3f(0.),
vec3f(0.),
vec3f(0.)
);const PoissonSamplers64: array<vec3f,64>=array<vec3f,64> (
vec3f(-0.613392,0.617481,0.),
vec3f(0.170019,-0.040254,0.),
vec3f(-0.299417,0.791925,0.),
vec3f(0.645680,0.493210,0.),
vec3f(-0.651784,0.717887,0.),
vec3f(0.421003,0.027070,0.),
vec3f(-0.817194,-0.271096,0.),
vec3f(-0.705374,-0.668203,0.),
vec3f(0.977050,-0.108615,0.),
vec3f(0.063326,0.142369,0.),
vec3f(0.203528,0.214331,0.),
vec3f(-0.667531,0.326090,0.),
vec3f(-0.098422,-0.295755,0.),
vec3f(-0.885922,0.215369,0.),
vec3f(0.566637,0.605213,0.),
vec3f(0.039766,-0.396100,0.),
vec3f(0.751946,0.453352,0.),
vec3f(0.078707,-0.715323,0.),
vec3f(-0.075838,-0.529344,0.),
vec3f(0.724479,-0.580798,0.),
vec3f(0.222999,-0.215125,0.),
vec3f(-0.467574,-0.405438,0.),
vec3f(-0.248268,-0.814753,0.),
vec3f(0.354411,-0.887570,0.),
vec3f(0.175817,0.382366,0.),
vec3f(0.487472,-0.063082,0.),
vec3f(-0.084078,0.898312,0.),
vec3f(0.488876,-0.783441,0.),
vec3f(0.470016,0.217933,0.),
vec3f(-0.696890,-0.549791,0.),
vec3f(-0.149693,0.605762,0.),
vec3f(0.034211,0.979980,0.),
vec3f(0.503098,-0.308878,0.),
vec3f(-0.016205,-0.872921,0.),
vec3f(0.385784,-0.393902,0.),
vec3f(-0.146886,-0.859249,0.),
vec3f(0.643361,0.164098,0.),
vec3f(0.634388,-0.049471,0.),
vec3f(-0.688894,0.007843,0.),
vec3f(0.464034,-0.188818,0.),
vec3f(-0.440840,0.137486,0.),
vec3f(0.364483,0.511704,0.),
vec3f(0.034028,0.325968,0.),
vec3f(0.099094,-0.308023,0.),
vec3f(0.693960,-0.366253,0.),
vec3f(0.678884,-0.204688,0.),
vec3f(0.001801,0.780328,0.),
vec3f(0.145177,-0.898984,0.),
vec3f(0.062655,-0.611866,0.),
vec3f(0.315226,-0.604297,0.),
vec3f(-0.780145,0.486251,0.),
vec3f(-0.371868,0.882138,0.),
vec3f(0.200476,0.494430,0.),
vec3f(-0.494552,-0.711051,0.),
vec3f(0.612476,0.705252,0.),
vec3f(-0.578845,-0.768792,0.),
vec3f(-0.772454,-0.090976,0.),
vec3f(0.504440,0.372295,0.),
vec3f(0.155736,0.065157,0.),
vec3f(0.391522,0.849605,0.),
vec3f(-0.620106,-0.328104,0.),
vec3f(0.789239,-0.419965,0.),
vec3f(-0.545396,0.538133,0.),
vec3f(-0.178564,-0.596057,0.)
);fn computeShadowWithCSMPCSS(layer: i32,vPositionFromLight: vec4f,depthMetric: f32,depthTexture: texture_2d_array<f32>,depthSampler: sampler,shadowTexture: texture_depth_2d_array,shadowSampler: sampler_comparison,shadowMapSizeInverse: f32,lightSizeUV: f32,darkness: f32,frustumEdgeFalloff: f32,searchTapCount: i32,pcfTapCount: i32,poissonSamplers: array<vec3f,64>,lightSizeUVCorrection: vec2f,depthCorrection: f32,penumbraDarkness: f32)->f32
{var clipSpace: vec3f=vPositionFromLight.xyz/vPositionFromLight.w;var uvDepth: vec3f= vec3f(0.5*clipSpace.xyz+ vec3f(0.5));uvDepth.z=clamp(getZInClip(clipSpace,uvDepth),0.,GREATEST_LESS_THAN_ONE);var uvDepthLayer: vec4f= vec4f(uvDepth.x,uvDepth.y,f32(layer),uvDepth.z);var blockerDepth: f32=0.0;var sumBlockerDepth: f32=0.0;var numBlocker: f32=0.0;for (var i: i32=0; i<searchTapCount; i ++) {blockerDepth=textureSample(depthTexture,depthSampler, uvDepth.xy+(lightSizeUV*lightSizeUVCorrection*shadowMapSizeInverse*PoissonSamplers32[i].xy),layer).r;numBlocker+=select(0.,1.,blockerDepth<depthMetric);sumBlockerDepth+=select(0.,blockerDepth,blockerDepth<depthMetric);}
var avgBlockerDepth: f32=sumBlockerDepth/numBlocker;var AAOffset: f32=shadowMapSizeInverse*10.;var penumbraRatio: f32=((depthMetric-avgBlockerDepth)*depthCorrection+AAOffset);var filterRadius: vec4f= vec4f(penumbraRatio*lightSizeUV*lightSizeUVCorrection*shadowMapSizeInverse,0.,0.);var random: f32=getRand(vPositionFromLight.xy);var rotationAngle: f32=random*3.1415926;var rotationVector: vec2f= vec2f(cos(rotationAngle),sin(rotationAngle));var shadow: f32=0.;for (var i: i32=0; i<pcfTapCount; i++) {var offset: vec4f= vec4f(poissonSamplers[i],0.);offset= vec4f(offset.x*rotationVector.x-offset.y*rotationVector.y,offset.y*rotationVector.x+offset.x*rotationVector.y,0.,0.);let coords=uvDepthLayer+offset*filterRadius;shadow+=textureSampleCompare(shadowTexture,shadowSampler,coords.xy,i32(coords.z),coords.w);}
shadow/= f32(pcfTapCount);shadow=mix(shadow,1.,min((depthMetric-avgBlockerDepth)*depthCorrection*penumbraDarkness,1.));shadow=mix(darkness,1.,shadow);return select(computeFallOff(shadow,clipSpace.xy,frustumEdgeFalloff),1.0,numBlocker<1.0);}
fn computeShadowWithPCSS(vPositionFromLight: vec4f,depthMetric: f32,depthTexture: texture_2d<f32>,depthSampler: sampler,shadowTexture: texture_depth_2d,shadowSampler: sampler_comparison,shadowMapSizeInverse: f32,lightSizeUV: f32,darkness: f32,frustumEdgeFalloff: f32,searchTapCount: i32,pcfTapCount: i32,poissonSamplers: array<vec3f,64>)->f32
{var clipSpace: vec3f=vPositionFromLight.xyz/vPositionFromLight.w;var uvDepth: vec3f= vec3f(0.5*clipSpace.xyz+ vec3f(0.5));uvDepth.z=getZInClip(clipSpace,uvDepth);var blockerDepth: f32=0.0;var sumBlockerDepth: f32=0.0;var numBlocker: f32=0.0;var exitCondition: bool=depthMetric>1.0 || depthMetric<0.0;for (var i: i32=0; i<searchTapCount; i ++) {if (exitCondition) {break;}
blockerDepth=textureSampleLevel(depthTexture,depthSampler,uvDepth.xy+(lightSizeUV*shadowMapSizeInverse*PoissonSamplers32[i].xy),0).r;numBlocker+=select(0.,1.,blockerDepth<depthMetric);sumBlockerDepth+=select(0.,blockerDepth,blockerDepth<depthMetric);}
exitCondition=exitCondition || numBlocker<1.0;var avgBlockerDepth: f32=sumBlockerDepth/numBlocker;var AAOffset: f32=shadowMapSizeInverse*10.;var penumbraRatio: f32=((depthMetric-avgBlockerDepth)+AAOffset);var filterRadius: f32=penumbraRatio*lightSizeUV*shadowMapSizeInverse;var random: f32=getRand(vPositionFromLight.xy);var rotationAngle: f32=random*3.1415926;var rotationVector: vec2f= vec2f(cos(rotationAngle),sin(rotationAngle));var shadow: f32=0.;for (var i: i32=0; i<pcfTapCount; i++) {if (exitCondition) {break;}
var offset: vec3f=poissonSamplers[i];offset= vec3f(offset.x*rotationVector.x-offset.y*rotationVector.y,offset.y*rotationVector.x+offset.x*rotationVector.y,0.);let coords=uvDepth+offset*filterRadius;shadow+=textureSampleCompareLevel(shadowTexture,shadowSampler,coords.xy,coords.z);}
shadow/= f32(pcfTapCount);shadow=mix(shadow,1.,depthMetric-avgBlockerDepth);shadow=mix(darkness,1.,shadow);return select(computeFallOff(shadow,clipSpace.xy,frustumEdgeFalloff),1.0,exitCondition);}
fn computeShadowWithPCSS16(vPositionFromLight: vec4f,depthMetric: f32,depthTexture: texture_2d<f32>,depthSampler: sampler,shadowTexture: texture_depth_2d,shadowSampler: sampler_comparison,shadowMapSizeInverse: f32,lightSizeUV: f32,darkness: f32,frustumEdgeFalloff: f32)->f32
{return computeShadowWithPCSS(vPositionFromLight,depthMetric,depthTexture,depthSampler,shadowTexture,shadowSampler,shadowMapSizeInverse,lightSizeUV,darkness,frustumEdgeFalloff,16,16,PoissonSamplers32);}
fn computeShadowWithPCSS32(vPositionFromLight: vec4f,depthMetric: f32,depthTexture: texture_2d<f32>,depthSampler: sampler,shadowTexture: texture_depth_2d,shadowSampler: sampler_comparison,shadowMapSizeInverse: f32,lightSizeUV: f32,darkness: f32,frustumEdgeFalloff: f32)->f32
{return computeShadowWithPCSS(vPositionFromLight,depthMetric,depthTexture,depthSampler,shadowTexture,shadowSampler,shadowMapSizeInverse,lightSizeUV,darkness,frustumEdgeFalloff,16,32,PoissonSamplers32);}
fn computeShadowWithPCSS64(vPositionFromLight: vec4f,depthMetric: f32,depthTexture: texture_2d<f32>,depthSampler: sampler,shadowTexture: texture_depth_2d,shadowSampler: sampler_comparison,shadowMapSizeInverse: f32,lightSizeUV: f32,darkness: f32,frustumEdgeFalloff: f32)->f32
{return computeShadowWithPCSS(vPositionFromLight,depthMetric,depthTexture,depthSampler,shadowTexture,shadowSampler,shadowMapSizeInverse,lightSizeUV,darkness,frustumEdgeFalloff,32,64,PoissonSamplers64);}
fn computeShadowWithCSMPCSS16(layer: i32,vPositionFromLight: vec4f,depthMetric: f32,depthTexture: texture_2d_array<f32>,depthSampler: sampler,shadowTexture: texture_depth_2d_array,shadowSampler: sampler_comparison,shadowMapSizeInverse: f32,lightSizeUV: f32,darkness: f32,frustumEdgeFalloff: f32,lightSizeUVCorrection: vec2f,depthCorrection: f32,penumbraDarkness: f32)->f32
{return computeShadowWithCSMPCSS(layer,vPositionFromLight,depthMetric,depthTexture,depthSampler,shadowTexture,shadowSampler,shadowMapSizeInverse,lightSizeUV,darkness,frustumEdgeFalloff,16,16,PoissonSamplers32,lightSizeUVCorrection,depthCorrection,penumbraDarkness);}
fn computeShadowWithCSMPCSS32(layer: i32,vPositionFromLight: vec4f,depthMetric: f32,depthTexture: texture_2d_array<f32>,depthSampler: sampler,shadowTexture: texture_depth_2d_array,shadowSampler: sampler_comparison,shadowMapSizeInverse: f32,lightSizeUV: f32,darkness: f32,frustumEdgeFalloff: f32,lightSizeUVCorrection: vec2f,depthCorrection: f32,penumbraDarkness: f32)->f32
{return computeShadowWithCSMPCSS(layer,vPositionFromLight,depthMetric,depthTexture,depthSampler,shadowTexture,shadowSampler,shadowMapSizeInverse,lightSizeUV,darkness,frustumEdgeFalloff,16,32,PoissonSamplers32,lightSizeUVCorrection,depthCorrection,penumbraDarkness);}
fn computeShadowWithCSMPCSS64(layer: i32,vPositionFromLight: vec4f,depthMetric: f32,depthTexture: texture_2d_array<f32>,depthSampler: sampler,shadowTexture: texture_depth_2d_array,shadowSampler: sampler_comparison,shadowMapSizeInverse: f32,lightSizeUV: f32,darkness: f32,frustumEdgeFalloff: f32,lightSizeUVCorrection: vec2f,depthCorrection: f32,penumbraDarkness: f32)->f32
{return computeShadowWithCSMPCSS(layer,vPositionFromLight,depthMetric,depthTexture,depthSampler,shadowTexture,shadowSampler,shadowMapSizeInverse,lightSizeUV,darkness,frustumEdgeFalloff,32,64,PoissonSamplers64,lightSizeUVCorrection,depthCorrection,penumbraDarkness);}
#endif
`;
// Sideeffect
if (!ShaderStore.IncludesShadersStoreWGSL[name]) {
    ShaderStore.IncludesShadersStoreWGSL[name] = shader;
}
/** @internal */
export const shadowsFragmentFunctionsWGSL = { name, shader };
//# sourceMappingURL=shadowsFragmentFunctions.js.map