import{S as r}from"./index-CDrXokXW.js";import"./index-DWyDLubb.js";const e="iblShadowSpatialBlurPixelShader",a=`#define PI 3.1415927
varying vUV: vec2f;var depthSampler: texture_2d<f32>;var worldNormalSampler: texture_2d<f32>;var voxelTracingSampler : texture_2d<f32>;uniform blurParameters: vec4f;
#define stridef uniforms.blurParameters.x
#define worldScale uniforms.blurParameters.y
const weights=array<f32,5>(0.0625,0.25,0.375,0.25,0.0625);const nbWeights: i32=5;fn max2(v: vec2f,w: vec2f)->vec2f {return vec2f(max(v.x,w.x),max(v.y,w.y));}
@fragment
fn main(input: FragmentInputs)->FragmentOutputs {var gbufferRes=vec2f(textureDimensions(depthSampler,0));var gbufferPixelCoord= vec2i(fragmentInputs.vUV*gbufferRes);var shadowRes=vec2f(textureDimensions(voxelTracingSampler,0));var shadowPixelCoord= vec2i(fragmentInputs.vUV*shadowRes);var N: vec3f=textureLoad(worldNormalSampler,gbufferPixelCoord,0).xyz;if (length(N)<0.01) {fragmentOutputs.color=vec4f(1.0,1.0,0.0,1.0);return fragmentOutputs;}
var depth: f32=-textureLoad(depthSampler,gbufferPixelCoord,0).x;var X: vec4f= vec4f(0.0);for(var y: i32=0; y<nbWeights; y++) {for(var x: i32=0; x<nbWeights; x++) {var gBufferCoords: vec2i=gbufferPixelCoord+i32(stridef)*vec2i(x-(nbWeights>>1),y-(nbWeights>>1));var shadowCoords: vec2i=shadowPixelCoord+i32(stridef)*vec2i(x-(nbWeights>>1),y-(nbWeights>>1));var T : vec3f=textureLoad(voxelTracingSampler,shadowCoords,0).xyz;var ddepth: f32=-textureLoad(depthSampler,gBufferCoords,0).x-depth;var dN: vec3f=textureLoad(worldNormalSampler,gBufferCoords,0).xyz-N;var w: f32=weights[x]*weights[y] *
exp2(max(-1000.0/(worldScale*worldScale),-0.5) *
(ddepth*ddepth) -
1e1*dot(dN,dN));X+= vec4f(w*T.x,w*T.y,w*T.z,w);}}
fragmentOutputs.color= vec4f(X.x/X.w,X.y/X.w,X.z/X.w,1.0);}`;r.ShadersStoreWGSL[e]||(r.ShadersStoreWGSL[e]=a);const f={name:e,shader:a};export{f as iblShadowSpatialBlurPixelShaderWGSL};
