import{S as r}from"./index-T8LZyOXI.js";import"./index-BkylzejB.js";const e="ssao2PixelShader",t=`varying vUV: vec2f;var textureSamplerSampler: sampler;var textureSampler: texture_2d<f32>;
#ifdef SSAO
const scales: array<f32,16>=array<f32,16>(
0.1,
0.11406250000000001,
0.131640625,
0.15625,
0.187890625,
0.2265625,
0.272265625,
0.325,
0.384765625,
0.4515625,
0.525390625,
0.60625,
0.694140625,
0.7890625,
0.891015625,
1.0
);uniform near: f32;uniform radius: f32;var depthSamplerSampler: sampler;var depthSampler: texture_2d<f32>;var randomSamplerSampler: sampler;var randomSampler: texture_2d<f32>;var normalSamplerSampler: sampler;var normalSampler: texture_2d<f32>;uniform randTextureTiles: f32;uniform samplesFactor: f32;uniform sampleSphere: array<vec3f,SAMPLES>;uniform totalStrength: f32;uniform base: f32;
#ifdef ORTHOGRAPHIC_CAMERA
uniform viewport: vec4f;
#else
uniform xViewport: f32;uniform yViewport: f32;
#endif
uniform depthProjection: mat3x3f;uniform maxZ: f32;uniform minZAspect: f32;uniform texelSize: vec2f;uniform projection: mat4x4f;@fragment
fn main(input: FragmentInputs)->FragmentOutputs {var random: vec3f=textureSampleLevel(randomSampler,randomSamplerSampler,input.vUV*uniforms.randTextureTiles,0.0).rgb;var depth: f32=textureSampleLevel(depthSampler,depthSamplerSampler,input.vUV,0.0).r;var depthSign: f32=sign(depth);depth=depth*depthSign;var normal: vec3f=textureSampleLevel(normalSampler,normalSamplerSampler,input.vUV,0.0).rgb;var occlusion: f32=0.0;var correctedRadius: f32=min(uniforms.radius,uniforms.minZAspect*depth/uniforms.near);
#ifdef ORTHOGRAPHIC_CAMERA
var vViewRay: vec3f= vec3f(mix(uniforms.viewport.x,uniforms.viewport.y,input.vUV.x),mix(uniforms.viewport.z,uniforms.viewport.w,input.vUV.y),depthSign);
#else
var vViewRay: vec3f= vec3f((input.vUV.x*2.0-1.0)*uniforms.xViewport,(input.vUV.y*2.0-1.0)*uniforms.yViewport,depthSign);
#endif
var vDepthFactor: vec3f=uniforms.depthProjection* vec3f(1.0,1.0,depth);var origin: vec3f=vViewRay*vDepthFactor;var rvec: vec3f=random*2.0-1.0;rvec.z=0.0;var dotProduct: f32=dot(rvec,normal);rvec=select( vec3f(-rvec.y,0.0,rvec.x),rvec,1.0-abs(dotProduct)>1e-2);var tangent: vec3f=normalize(rvec-normal*dot(rvec,normal));var bitangent: vec3f=cross(normal,tangent);var tbn: mat3x3f= mat3x3f(tangent,bitangent,normal);var difference: f32;for (var i: i32=0; i<SAMPLES; i++) {var samplePosition: vec3f=scales[(i+ i32(random.x*16.0)) % 16]*tbn*uniforms.sampleSphere[(i+ i32(random.y*16.0)) % 16];samplePosition=samplePosition*correctedRadius+origin;var offset: vec4f= vec4f(samplePosition,1.0);offset=uniforms.projection*offset;offset=vec4f(offset.xyz/offset.w,offset.w);offset=vec4f(offset.xy*0.5+0.5,offset.z,offset.w);if (offset.x<0.0 || offset.y<0.0 || offset.x>1.0 || offset.y>1.0) {continue;}
var sampleDepth: f32=abs(textureSampleLevel(depthSampler,depthSamplerSampler,offset.xy,0.0).r);difference=depthSign*samplePosition.z-sampleDepth;var rangeCheck: f32=1.0-smoothstep(correctedRadius*0.5,correctedRadius,difference);occlusion+=step(EPSILON,difference)*rangeCheck;}
occlusion=occlusion*(1.0-smoothstep(uniforms.maxZ*0.75,uniforms.maxZ,depth));var ao: f32=1.0-uniforms.totalStrength*occlusion*uniforms.samplesFactor;var result: f32=clamp(ao+uniforms.base,0.0,1.0);fragmentOutputs.color= vec4f( vec3f(result),1.0);}
#else
#ifdef BLUR
uniform outSize: f32;uniform soften: f32;uniform tolerance: f32;uniform samples: i32;
#ifndef BLUR_BYPASS
var depthSamplerSampler: sampler;var depthSampler: texture_2d<f32>;
#ifdef BLUR_LEGACY
fn blur13Bilateral(image: texture_2d<f32>,imageSampler: sampler,uv: vec2f,step: vec2f)->f32 {var result: f32=0.0;var off1: vec2f= vec2f(1.411764705882353)*step;var off2: vec2f= vec2f(3.2941176470588234)*step;var off3: vec2f= vec2f(5.176470588235294)*step;var compareDepth: f32=abs(textureSampleLevel(depthSampler,depthSamplerSampler,uv,0.0).r);var sampleDepth: f32;var weight: f32;var weightSum: f32=30.0;result+=textureSampleLevel(image,imageSampler,uv,0.0).r*30.0;sampleDepth=abs(textureSampleLevel(depthSampler,depthSamplerSampler,uv+off1,0.0).r);weight=clamp(1.0/( 0.003+abs(compareDepth-sampleDepth)),0.0,30.0);weightSum+= weight;result+=textureSampleLevel(image,imageSampler,uv+off1,0.0).r*weight;sampleDepth=abs(textureSampleLevel(depthSampler,depthSamplerSampler,uv-off1,0.0).r);weight=clamp(1.0/( 0.003+abs(compareDepth-sampleDepth)),0.0,30.0);weightSum+= weight;result+=textureSampleLevel(image,imageSampler,uv-off1,0.0).r*weight;sampleDepth=abs(textureSampleLevel(depthSampler,depthSamplerSampler,uv+off2,0.0).r);weight=clamp(1.0/( 0.003+abs(compareDepth-sampleDepth)),0.0,30.0);weightSum+=weight;result+=textureSampleLevel(image,imageSampler,uv+off2,0.0).r*weight;sampleDepth=abs(textureSampleLevel(depthSampler,depthSamplerSampler,uv-off2,0.0).r);weight=clamp(1.0/( 0.003+abs(compareDepth-sampleDepth)),0.0,30.0);weightSum+=weight;result+=textureSampleLevel(image,imageSampler,uv-off2,0.0).r*weight;sampleDepth=abs(textureSampleLevel(depthSampler,depthSamplerSampler,uv+off3,0.0).r);weight=clamp(1.0/( 0.003+abs(compareDepth-sampleDepth)),0.0,30.0);weightSum+=weight;result+=textureSampleLevel(image,imageSampler,uv+off3,0.0).r*weight;sampleDepth=abs(textureSampleLevel(depthSampler,depthSamplerSampler,uv-off3,0.0).r);weight=clamp(1.0/( 0.003+abs(compareDepth-sampleDepth)),0.0,30.0);weightSum+=weight;result+=textureSampleLevel(image,imageSampler,uv-off3,0.0).r*weight;return result/weightSum;}
#endif
#endif
@fragment
fn main(input: FragmentInputs)->FragmentOutputs {var result: f32=0.0;
#ifdef BLUR_BYPASS
result=textureSampleLevel(textureSampler,textureSamplerSampler,input.vUV,0.0).r;
#else
#ifdef BLUR_H
var step: vec2f= vec2f(1.0/uniforms.outSize,0.0);
#else
var step: vec2f= vec2f(0.0,1.0/uniforms.outSize);
#endif
#ifdef BLUR_LEGACY
result=blur13Bilateral(textureSampler,textureSamplerSampler,input.vUV,step);
#else
var compareDepth: f32=abs(textureSampleLevel(depthSampler,depthSamplerSampler,input.vUV,0.0).r);var weightSum: f32=0.0;for (var i: i32=-uniforms.samples; i<uniforms.samples; i+=2)
{var samplePos: vec2f=input.vUV+step*( f32(i)+0.5);var sampleDepth: f32=abs(textureSampleLevel(depthSampler,depthSamplerSampler,samplePos,0.0).r);var falloff: f32=smoothstep(0.0,
f32(uniforms.samples),
f32(uniforms.samples)-abs( f32(i))*uniforms.soften);var minDivider: f32=uniforms.tolerance*0.5+0.003;var weight: f32=falloff/( minDivider+abs(compareDepth-sampleDepth));result+=textureSampleLevel(textureSampler,textureSamplerSampler,samplePos,0.0).r*weight;weightSum+=weight;}
result/=weightSum;
#endif
#endif
fragmentOutputs.color=vec4f(result,result,result,1.0);}
#endif
#endif
`;r.ShadersStoreWGSL[e]||(r.ShadersStoreWGSL[e]=t);const p={name:e,shader:t};export{p as ssao2PixelShaderWGSL};
