| 1 |
- {"ast":null,"code":"// Do not edit.\nimport { ShaderStore } from \"../Engines/shaderStore.js\";\nconst name = \"gpuUpdateParticlesComputeShader\";\nconst shader = `struct Particle {position : vec3<f32>,\nage : f32,\nsize : vec3<f32>,\nlife : f32,\nseed : vec4<f32>,\ndirection : vec3<f32>,\ndummy0: f32,\n#ifdef CUSTOMEMITTER\ninitialPosition : vec3<f32>,\ndummy1: f32,\n#endif\n#ifndef COLORGRADIENTS\ncolor : vec4<f32>,\n#endif\n#ifndef BILLBOARD\ninitialDirection : vec3<f32>,\ndummy2: f32,\n#endif\n#ifdef NOISE\nnoiseCoordinates1 : vec3<f32>,\ndummy3: f32,\nnoiseCoordinates2 : vec3<f32>,\ndummy4: f32,\n#endif\n#ifdef ANGULARSPEEDGRADIENTS\nangle : f32,\n#else\nangle : vec2<f32>,\n#endif\n#ifdef ANIMATESHEET\ncellIndex : f32,\n#ifdef ANIMATESHEETRANDOMSTART\ncellStartOffset : f32,\n#endif\n#endif\n};struct Particles {particles : array<Particle>,};struct SimParams {currentCount : f32,\ntimeDelta : f32,\nstopFactor : f32,\nrandomTextureSize: i32,\nlifeTime : vec2<f32>,\nemitPower : vec2<f32>,\n#ifndef COLORGRADIENTS\ncolor1 : vec4<f32>,\ncolor2 : vec4<f32>,\n#endif\nsizeRange : vec2<f32>,\nscaleRange : vec4<f32>,\nangleRange : vec4<f32>,\ngravity : vec3<f32>,\n#ifdef LIMITVELOCITYGRADIENTS\nlimitVelocityDamping : f32,\n#endif\n#ifdef ANIMATESHEET\ncellInfos : vec4<f32>,\n#endif\n#ifdef NOISE\nnoiseStrength : vec3<f32>,\n#endif\n#ifndef LOCAL\nemitterWM : mat4x4<f32>,\n#endif\n#ifdef BOXEMITTER\ndirection1 : vec3<f32>,\ndirection2 : vec3<f32>,\nminEmitBox : vec3<f32>,\nmaxEmitBox : vec3<f32>,\n#endif\n#ifdef CONEEMITTER\nradius : vec2<f32>,\nconeAngle : f32,\nheight : vec2<f32>,\n#ifdef DIRECTEDCONEEMITTER\ndirection1 : vec3<f32>,\ndirection2 : vec3<f32>,\n#else\ndirectionRandomizer : f32,\n#endif\n#endif\n#ifdef CYLINDEREMITTER\nradius : f32,\nheight : f32,\nradiusRange : f32,\n#ifdef DIRECTEDCYLINDEREMITTER\ndirection1 : vec3<f32>,\ndirection2 : vec3<f32>,\n#else\ndirectionRandomizer : f32,\n#endif\n#endif\n#ifdef HEMISPHERICEMITTER\nradius : f32,\nradiusRange : f32,\ndirectionRandomizer : f32,\n#endif\n#ifdef POINTEMITTER\ndirection1 : vec3<f32>,\ndirection2 : vec3<f32>,\n#endif\n#ifdef SPHEREEMITTER\nradius : f32,\nradiusRange : f32,\n#ifdef DIRECTEDSPHEREEMITTER\ndirection1 : vec3<f32>,\ndirection2 : vec3<f32>,\n#else\ndirectionRandomizer : f32,\n#endif\n#endif\n};@binding(0) @group(0) var<uniform> params : SimParams;@binding(1) @group(0) var<storage,read> particlesIn : Particles;@binding(2) @group(0) var<storage,read_write> particlesOut : Particles;@binding(3) @group(0) var randomTexture : texture_2d<f32>;@binding(4) @group(0) var randomTexture2 : texture_2d<f32>;\n#ifdef SIZEGRADIENTS\n@binding(0) @group(1) var sizeGradientSampler : sampler;@binding(1) @group(1) var sizeGradientTexture : texture_2d<f32>;\n#endif \n#ifdef ANGULARSPEEDGRADIENTS\n@binding(2) @group(1) var angularSpeedGradientSampler : sampler;@binding(3) @group(1) var angularSpeedGradientTexture : texture_2d<f32>;\n#endif \n#ifdef VELOCITYGRADIENTS\n@binding(4) @group(1) var velocityGradientSampler : sampler;@binding(5) @group(1) var velocityGradientTexture : texture_2d<f32>;\n#endif\n#ifdef LIMITVELOCITYGRADIENTS\n@binding(6) @group(1) var limitVelocityGradientSampler : sampler;@binding(7) @group(1) var limitVelocityGradientTexture : texture_2d<f32>;\n#endif\n#ifdef DRAGGRADIENTS\n@binding(8) @group(1) var dragGradientSampler : sampler;@binding(9) @group(1) var dragGradientTexture : texture_2d<f32>;\n#endif\n#ifdef NOISE\n@binding(10) @group(1) var noiseSampler : sampler;@binding(11) @group(1) var noiseTexture : texture_2d<f32>;\n#endif\nfn getRandomVec3(offset : f32,vertexID : f32)->vec3<f32> {return textureLoad(randomTexture2,vec2<i32>(i32(vertexID*offset/params.currentCount*f32(params.randomTextureSize)) % params.randomTextureSize,0),0).rgb;}\nfn getRandomVec4(offset : f32,vertexID : f32)->vec4<f32> {return textureLoad(randomTexture,vec2<i32>(i32(vertexID*offset/params.currentCount*f32(params.randomTextureSize)) % params.randomTextureSize,0),0);}\n@compute @workgroup_size(64)\nfn main(@builtin(global_invocation_id) GlobalInvocationID : vec3<u32>) {let index : u32=GlobalInvocationID.x;let vertexID : f32=f32(index);if (index>=u32(params.currentCount)) {return;}\nlet PI : f32=3.14159;let timeDelta : f32=params.timeDelta;let newAge : f32=particlesIn.particles[index].age+timeDelta;let life : f32=particlesIn.particles[index].life;let seed : vec4<f32>=particlesIn.particles[index].seed;let direction : vec3<f32>=particlesIn.particles[index].direction;if (newAge>=life && params.stopFactor != 0.) {var newPosition : vec3<f32>;var newDirection : vec3<f32>;let randoms : vec4<f32>=getRandomVec4(seed.x,vertexID);let outLife : f32=params.lifeTime.x+(params.lifeTime.y-params.lifeTime.x)*randoms.r;particlesOut.particles[index].life=outLife;particlesOut.particles[index].age=newAge-life;particlesOut.particles[index].seed=seed;var sizex : f32;\n#ifdef SIZEGRADIENTS \nsizex=textureSampleLevel(sizeGradientTexture,sizeGradientSampler,vec2<f32>(0.,0.),0.).r;\n#else\nsizex=params.sizeRange.x+(params.sizeRange.y-params.sizeRange.x)*randoms.g;\n#endif\nparticlesOut.particles[index].size=vec3<f32>(\nsizex,\nparams.scaleRange.x+(params.scaleRange.y-params.scaleRange.x)*randoms.b,\nparams.scaleRange.z+(params.scaleRange.w-params.scaleRange.z)*randoms.a);\n#ifndef COLORGRADIENTS\nparticlesOut.particles[index].color=params.color1+(params.color2-params.color1)*randoms.b;\n#endif\n#ifndef ANGULARSPEEDGRADIENTS \nparticlesOut.particles[index].angle=vec2<f32>(\nparams.angleRange.z+(params.angleRange.w-params.angleRange.z)*randoms.r,\nparams.angleRange.x+(params.angleRange.y-params.angleRange.x)*randoms.a);\n#else\nparticlesOut.particles[index].angle=params.angleRange.z+(params.angleRange.w-params.angleRange.z)*randoms.r;\n#endif \n#if defined(POINTEMITTER)\nlet randoms2 : vec3<f32>=getRandomVec3(seed.y,vertexID);let randoms3 : vec3<f32>=getRandomVec3(seed.z,vertexID);newPosition=vec3<f32>(0.,0.,0.);newDirection=params.direction1+(params.direction2-params.direction1)*randoms3;\n#elif defined(BOXEMITTER)\nlet randoms2 : vec3<f32>=getRandomVec3(seed.y,vertexID);let randoms3 : vec3<f32>=getRandomVec3(seed.z,vertexID);newPosition=params.minEmitBox+(params.maxEmitBox-params.minEmitBox)*randoms2;newDirection=params.direction1+(params.direction2-params.direction1)*randoms3; \n#elif defined(HEMISPHERICEMITTER)\nlet randoms2 : vec3<f32>=getRandomVec3(seed.y,vertexID);let randoms3 : vec3<f32>=getRandomVec3(seed.z,vertexID);let phi : f32=2.0*PI*randoms2.x;let theta : f32=acos(-1.0+2.0*randoms2.y);let randX : f32=cos(phi)*sin(theta);let randY : f32=cos(theta);let randZ : f32=sin(phi)*sin(theta);newPosition=(params.radius-(params.radius*params.radiusRange*randoms2.z))*vec3<f32>(randX,abs(randY),randZ);newDirection=normalize(newPosition+params.directionRandomizer*randoms3);\n#elif defined(SPHEREEMITTER)\nlet randoms2 : vec3<f32>=getRandomVec3(seed.y,vertexID);let randoms3 : vec3<f32>=getRandomVec3(seed.z,vertexID);let phi : f32=2.0*PI*randoms2.x;let theta : f32=acos(-1.0+2.0*randoms2.y);let randX : f32=cos(phi)*sin(theta);let randY : f32=cos(theta);let randZ : f32=sin(phi)*sin(theta);newPosition=(params.radius-(params.radius*params.radiusRange*randoms2.z))*vec3<f32>(randX,randY,randZ);\n#ifdef DIRECTEDSPHEREEMITTER\nnewDirection=normalize(params.direction1+(params.direction2-params.direction1)*randoms3);\n#else\nnewDirection=normalize(newPosition+params.directionRandomizer*randoms3);\n#endif\n#elif defined(CYLINDEREMITTER)\nlet randoms2 : vec3<f32>=getRandomVec3(seed.y,vertexID);let randoms3 : vec3<f32>=getRandomVec3(seed.z,vertexID);let yPos : f32=(-0.5+randoms2.x)*params.height;var angle : f32=randoms2.y*PI*2.;let inverseRadiusRangeSquared : f32=(1.-params.radiusRange)*(1.-params.radiusRange);let positionRadius : f32=params.radius*sqrt(inverseRadiusRangeSquared+randoms2.z*(1.-inverseRadiusRangeSquared));let xPos : f32=positionRadius*cos(angle);let zPos : f32=positionRadius*sin(angle);newPosition=vec3<f32>(xPos,yPos,zPos);\n#ifdef DIRECTEDCYLINDEREMITTER\nnewDirection=params.direction1+(params.direction2-params.direction1)*randoms3;\n#else\nangle=angle+(-0.5+randoms3.x)*PI*params.directionRandomizer;newDirection=vec3<f32>(cos(angle),(-0.5+randoms3.y)*params.directionRandomizer,sin(angle));newDirection=normalize(newDirection);\n#endif\n#elif defined(CONEEMITTER)\nlet randoms2 : vec3<f32>=getRandomVec3(seed.y,vertexID);let s : f32=2.0*PI*randoms2.x;\n#ifdef CONEEMITTERSPAWNPOINT\nlet h : f32=0.0001;\n#else\nvar h : f32=randoms2.y*params.height.y;h=1.-h*h; \n#endif\nvar lRadius : f32=params.radius.x-params.radius.x*randoms2.z*params.radius.y;lRadius=lRadius*h;let randX : f32=lRadius*sin(s);let randZ : f32=lRadius*cos(s);let randY : f32=h *params.height.x;newPosition=vec3<f32>(randX,randY,randZ); \nlet randoms3 : vec3<f32>=getRandomVec3(seed.z,vertexID);\n#ifdef DIRECTEDCONEEMITTER\nnewDirection=params.direction1+(params.direction2-params.direction1)*randoms3;\n#else\nif (abs(cos(params.coneAngle))==1.0) {newDirection=vec3<f32>(0.,1.0,0.);} else {newDirection=normalize(newPosition+params.directionRandomizer*randoms3); }\n#endif\n#elif defined(CUSTOMEMITTER)\nnewPosition=particlesIn.particles[index].initialPosition;particlesOut.particles[index].initialPosition=newPosition;\n#else \nnewPosition=vec3<f32>(0.,0.,0.);newDirection=2.0*(getRandomVec3(seed.w,vertexID)-vec3<f32>(0.5,0.5,0.5));\n#endif\nlet power : f32=params.emitPower.x+(params.emitPower.y-params.emitPower.x)*randoms.a;\n#ifdef LOCAL\nparticlesOut.particles[index].position=newPosition;\n#else\nparticlesOut.particles[index].position=(params.emitterWM*vec4<f32>(newPosition,1.)).xyz;\n#endif\n#ifdef CUSTOMEMITTER\nparticlesOut.particles[index].direction=direction;\n#ifndef BILLBOARD \nparticlesOut.particles[index].initialDirection=direction;\n#endif\n#else\n#ifdef LOCAL\nlet initial : vec3<f32>=newDirection;\n#else \nlet initial : vec3<f32>=(params.emitterWM*vec4<f32>(newDirection,0.)).xyz;\n#endif\nparticlesOut.particles[index].direction=initial*power;\n#ifndef BILLBOARD \nparticlesOut.particles[index].initialDirection=initial;\n#endif\n#endif\n#ifdef ANIMATESHEET \nparticlesOut.particles[index].cellIndex=params.cellInfos.x;\n#ifdef ANIMATESHEETRANDOMSTART\nparticlesOut.particles[index].cellStartOffset=randoms.a*outLife;\n#endif \n#endif\n#ifdef NOISE\nparticlesOut.particles[index].noiseCoordinates1=particlesIn.particles[index].noiseCoordinates1;particlesOut.particles[index].noiseCoordinates2=particlesIn.particles[index].noiseCoordinates2;\n#endif\n} else {var directionScale : f32=timeDelta;particlesOut.particles[index].age=newAge;let ageGradient : f32=newAge/life;\n#ifdef VELOCITYGRADIENTS\ndirectionScale=directionScale*textureSampleLevel(velocityGradientTexture,velocityGradientSampler,vec2<f32>(ageGradient,0.),0.).r;\n#endif\n#ifdef DRAGGRADIENTS\ndirectionScale=directionScale*(1.0-textureSampleLevel(dragGradientTexture,dragGradientSampler,vec2<f32>(ageGradient,0.),0.).r);\n#endif\nlet position : vec3<f32>=particlesIn.particles[index].position;\n#if defined(CUSTOMEMITTER)\nparticlesOut.particles[index].position=position+(direction-position)*ageGradient; \nparticlesOut.particles[index].initialPosition=particlesIn.particles[index].initialPosition;\n#else\nparticlesOut.particles[index].position=position+direction*directionScale;\n#endif\nparticlesOut.particles[index].life=life;particlesOut.particles[index].seed=seed;\n#ifndef COLORGRADIENTS \nparticlesOut.particles[index].color=particlesIn.particles[index].color;\n#endif\n#ifdef SIZEGRADIENTS\nparticlesOut.particles[index].size=vec3<f32>(\ntextureSampleLevel(sizeGradientTexture,sizeGradientSampler,vec2<f32>(ageGradient,0.),0.).r,\nparticlesIn.particles[index].size.yz);\n#else\nparticlesOut.particles[index].size=particlesIn.particles[index].size;\n#endif \n#ifndef BILLBOARD \nparticlesOut.particles[index].initialDirection=particlesIn.particles[index].initialDirection;\n#endif\n#ifdef CUSTOMEMITTER\nparticlesOut.particles[index].direction=direction;\n#else\nvar updatedDirection : vec3<f32>=direction+params.gravity*timeDelta;\n#ifdef LIMITVELOCITYGRADIENTS\nlet limitVelocity : f32=textureSampleLevel(limitVelocityGradientTexture,limitVelocityGradientSampler,vec2<f32>(ageGradient,0.),0.).r;let currentVelocity : f32=length(updatedDirection);if (currentVelocity>limitVelocity) {updatedDirection=updatedDirection*params.limitVelocityDamping;}\n#endif\nparticlesOut.particles[index].direction=updatedDirection;\n#ifdef NOISE\nlet noiseCoordinates1 : vec3<f32>=particlesIn.particles[index].noiseCoordinates1;let noiseCoordinates2 : vec3<f32>=particlesIn.particles[index].noiseCoordinates2;let fetchedR : f32=textureSampleLevel(noiseTexture,noiseSampler,vec2<f32>(noiseCoordinates1.x,noiseCoordinates1.y)*vec2<f32>(0.5,0.5)+vec2<f32>(0.5,0.5),0.).r;let fetchedG : f32=textureSampleLevel(noiseTexture,noiseSampler,vec2<f32>(noiseCoordinates1.z,noiseCoordinates2.x)*vec2<f32>(0.5,0.5)+vec2<f32>(0.5,0.5),0.).r;let fetchedB : f32=textureSampleLevel(noiseTexture,noiseSampler,vec2<f32>(noiseCoordinates2.y,noiseCoordinates2.z)*vec2<f32>(0.5,0.5)+vec2<f32>(0.5,0.5),0.).r;let force : vec3<f32>=vec3<f32>(-1.+2.*fetchedR,-1.+2.*fetchedG,-1.+2.*fetchedB)*params.noiseStrength;particlesOut.particles[index].direction=particlesOut.particles[index].direction+force*timeDelta;particlesOut.particles[index].noiseCoordinates1=noiseCoordinates1;particlesOut.particles[index].noiseCoordinates2=noiseCoordinates2;\n#endif \n#endif \n#ifdef ANGULARSPEEDGRADIENTS\nlet angularSpeed : f32=textureSampleLevel(angularSpeedGradientTexture,angularSpeedGradientSampler,vec2<f32>(ageGradient,0.),0.).r;particlesOut.particles[index].angle=particlesIn.particles[index].angle+angularSpeed*timeDelta;\n#else\nlet angle : vec2<f32>=particlesIn.particles[index].angle;particlesOut.particles[index].angle=vec2<f32>(angle.x+angle.y*timeDelta,angle.y);\n#endif\n#ifdef ANIMATESHEET \nvar offsetAge : f32=particlesOut.particles[index].age;let dist : f32=params.cellInfos.y-params.cellInfos.x;\n#ifdef ANIMATESHEETRANDOMSTART\nlet cellStartOffset : f32=particlesIn.particles[index].cellStartOffset;particlesOut.particles[index].cellStartOffset=cellStartOffset;offsetAge=offsetAge+cellStartOffset;\n#else\nlet cellStartOffset : f32=0.;\n#endif \nvar ratio : f32;if (params.cellInfos.w==1.0) {ratio=clamp(((cellStartOffset+params.cellInfos.z*offsetAge) % life)/life,0.,1.0);}\nelse {ratio=clamp((cellStartOffset+params.cellInfos.z*offsetAge)/life,0.,1.0);}\nparticlesOut.particles[index].cellIndex=f32(i32(params.cellInfos.x+ratio*dist));\n#endif\n}}\n`;\n// Sideeffect\nShaderStore.ShadersStoreWGSL[name] = shader;\n/** @internal */\nexport const gpuUpdateParticlesComputeShaderWGSL = {\n name,\n shader\n};","map":{"version":3,"names":["ShaderStore","name","shader","ShadersStoreWGSL","gpuUpdateParticlesComputeShaderWGSL"],"sources":["F:/workspace/202226701027/huinongbao-app/node_modules/@babylonjs/core/ShadersWGSL/gpuUpdateParticles.compute.js"],"sourcesContent":["// Do not edit.\nimport { ShaderStore } from \"../Engines/shaderStore.js\";\nconst name = \"gpuUpdateParticlesComputeShader\";\nconst shader = `struct Particle {position : vec3<f32>,\nage : f32,\nsize : vec3<f32>,\nlife : f32,\nseed : vec4<f32>,\ndirection : vec3<f32>,\ndummy0: f32,\n#ifdef CUSTOMEMITTER\ninitialPosition : vec3<f32>,\ndummy1: f32,\n#endif\n#ifndef COLORGRADIENTS\ncolor : vec4<f32>,\n#endif\n#ifndef BILLBOARD\ninitialDirection : vec3<f32>,\ndummy2: f32,\n#endif\n#ifdef NOISE\nnoiseCoordinates1 : vec3<f32>,\ndummy3: f32,\nnoiseCoordinates2 : vec3<f32>,\ndummy4: f32,\n#endif\n#ifdef ANGULARSPEEDGRADIENTS\nangle : f32,\n#else\nangle : vec2<f32>,\n#endif\n#ifdef ANIMATESHEET\ncellIndex : f32,\n#ifdef ANIMATESHEETRANDOMSTART\ncellStartOffset : f32,\n#endif\n#endif\n};struct Particles {particles : array<Particle>,};struct SimParams {currentCount : f32,\ntimeDelta : f32,\nstopFactor : f32,\nrandomTextureSize: i32,\nlifeTime : vec2<f32>,\nemitPower : vec2<f32>,\n#ifndef COLORGRADIENTS\ncolor1 : vec4<f32>,\ncolor2 : vec4<f32>,\n#endif\nsizeRange : vec2<f32>,\nscaleRange : vec4<f32>,\nangleRange : vec4<f32>,\ngravity : vec3<f32>,\n#ifdef LIMITVELOCITYGRADIENTS\nlimitVelocityDamping : f32,\n#endif\n#ifdef ANIMATESHEET\ncellInfos : vec4<f32>,\n#endif\n#ifdef NOISE\nnoiseStrength : vec3<f32>,\n#endif\n#ifndef LOCAL\nemitterWM : mat4x4<f32>,\n#endif\n#ifdef BOXEMITTER\ndirection1 : vec3<f32>,\ndirection2 : vec3<f32>,\nminEmitBox : vec3<f32>,\nmaxEmitBox : vec3<f32>,\n#endif\n#ifdef CONEEMITTER\nradius : vec2<f32>,\nconeAngle : f32,\nheight : vec2<f32>,\n#ifdef DIRECTEDCONEEMITTER\ndirection1 : vec3<f32>,\ndirection2 : vec3<f32>,\n#else\ndirectionRandomizer : f32,\n#endif\n#endif\n#ifdef CYLINDEREMITTER\nradius : f32,\nheight : f32,\nradiusRange : f32,\n#ifdef DIRECTEDCYLINDEREMITTER\ndirection1 : vec3<f32>,\ndirection2 : vec3<f32>,\n#else\ndirectionRandomizer : f32,\n#endif\n#endif\n#ifdef HEMISPHERICEMITTER\nradius : f32,\nradiusRange : f32,\ndirectionRandomizer : f32,\n#endif\n#ifdef POINTEMITTER\ndirection1 : vec3<f32>,\ndirection2 : vec3<f32>,\n#endif\n#ifdef SPHEREEMITTER\nradius : f32,\nradiusRange : f32,\n#ifdef DIRECTEDSPHEREEMITTER\ndirection1 : vec3<f32>,\ndirection2 : vec3<f32>,\n#else\ndirectionRandomizer : f32,\n#endif\n#endif\n};@binding(0) @group(0) var<uniform> params : SimParams;@binding(1) @group(0) var<storage,read> particlesIn : Particles;@binding(2) @group(0) var<storage,read_write> particlesOut : Particles;@binding(3) @group(0) var randomTexture : texture_2d<f32>;@binding(4) @group(0) var randomTexture2 : texture_2d<f32>;\n#ifdef SIZEGRADIENTS\n@binding(0) @group(1) var sizeGradientSampler : sampler;@binding(1) @group(1) var sizeGradientTexture : texture_2d<f32>;\n#endif \n#ifdef ANGULARSPEEDGRADIENTS\n@binding(2) @group(1) var angularSpeedGradientSampler : sampler;@binding(3) @group(1) var angularSpeedGradientTexture : texture_2d<f32>;\n#endif \n#ifdef VELOCITYGRADIENTS\n@binding(4) @group(1) var velocityGradientSampler : sampler;@binding(5) @group(1) var velocityGradientTexture : texture_2d<f32>;\n#endif\n#ifdef LIMITVELOCITYGRADIENTS\n@binding(6) @group(1) var limitVelocityGradientSampler : sampler;@binding(7) @group(1) var limitVelocityGradientTexture : texture_2d<f32>;\n#endif\n#ifdef DRAGGRADIENTS\n@binding(8) @group(1) var dragGradientSampler : sampler;@binding(9) @group(1) var dragGradientTexture : texture_2d<f32>;\n#endif\n#ifdef NOISE\n@binding(10) @group(1) var noiseSampler : sampler;@binding(11) @group(1) var noiseTexture : texture_2d<f32>;\n#endif\nfn getRandomVec3(offset : f32,vertexID : f32)->vec3<f32> {return textureLoad(randomTexture2,vec2<i32>(i32(vertexID*offset/params.currentCount*f32(params.randomTextureSize)) % params.randomTextureSize,0),0).rgb;}\nfn getRandomVec4(offset : f32,vertexID : f32)->vec4<f32> {return textureLoad(randomTexture,vec2<i32>(i32(vertexID*offset/params.currentCount*f32(params.randomTextureSize)) % params.randomTextureSize,0),0);}\n@compute @workgroup_size(64)\nfn main(@builtin(global_invocation_id) GlobalInvocationID : vec3<u32>) {let index : u32=GlobalInvocationID.x;let vertexID : f32=f32(index);if (index>=u32(params.currentCount)) {return;}\nlet PI : f32=3.14159;let timeDelta : f32=params.timeDelta;let newAge : f32=particlesIn.particles[index].age+timeDelta;let life : f32=particlesIn.particles[index].life;let seed : vec4<f32>=particlesIn.particles[index].seed;let direction : vec3<f32>=particlesIn.particles[index].direction;if (newAge>=life && params.stopFactor != 0.) {var newPosition : vec3<f32>;var newDirection : vec3<f32>;let randoms : vec4<f32>=getRandomVec4(seed.x,vertexID);let outLife : f32=params.lifeTime.x+(params.lifeTime.y-params.lifeTime.x)*randoms.r;particlesOut.particles[index].life=outLife;particlesOut.particles[index].age=newAge-life;particlesOut.particles[index].seed=seed;var sizex : f32;\n#ifdef SIZEGRADIENTS \nsizex=textureSampleLevel(sizeGradientTexture,sizeGradientSampler,vec2<f32>(0.,0.),0.).r;\n#else\nsizex=params.sizeRange.x+(params.sizeRange.y-params.sizeRange.x)*randoms.g;\n#endif\nparticlesOut.particles[index].size=vec3<f32>(\nsizex,\nparams.scaleRange.x+(params.scaleRange.y-params.scaleRange.x)*randoms.b,\nparams.scaleRange.z+(params.scaleRange.w-params.scaleRange.z)*randoms.a);\n#ifndef COLORGRADIENTS\nparticlesOut.particles[index].color=params.color1+(params.color2-params.color1)*randoms.b;\n#endif\n#ifndef ANGULARSPEEDGRADIENTS \nparticlesOut.particles[index].angle=vec2<f32>(\nparams.angleRange.z+(params.angleRange.w-params.angleRange.z)*randoms.r,\nparams.angleRange.x+(params.angleRange.y-params.angleRange.x)*randoms.a);\n#else\nparticlesOut.particles[index].angle=params.angleRange.z+(params.angleRange.w-params.angleRange.z)*randoms.r;\n#endif \n#if defined(POINTEMITTER)\nlet randoms2 : vec3<f32>=getRandomVec3(seed.y,vertexID);let randoms3 : vec3<f32>=getRandomVec3(seed.z,vertexID);newPosition=vec3<f32>(0.,0.,0.);newDirection=params.direction1+(params.direction2-params.direction1)*randoms3;\n#elif defined(BOXEMITTER)\nlet randoms2 : vec3<f32>=getRandomVec3(seed.y,vertexID);let randoms3 : vec3<f32>=getRandomVec3(seed.z,vertexID);newPosition=params.minEmitBox+(params.maxEmitBox-params.minEmitBox)*randoms2;newDirection=params.direction1+(params.direction2-params.direction1)*randoms3; \n#elif defined(HEMISPHERICEMITTER)\nlet randoms2 : vec3<f32>=getRandomVec3(seed.y,vertexID);let randoms3 : vec3<f32>=getRandomVec3(seed.z,vertexID);let phi : f32=2.0*PI*randoms2.x;let theta : f32=acos(-1.0+2.0*randoms2.y);let randX : f32=cos(phi)*sin(theta);let randY : f32=cos(theta);let randZ : f32=sin(phi)*sin(theta);newPosition=(params.radius-(params.radius*params.radiusRange*randoms2.z))*vec3<f32>(randX,abs(randY),randZ);newDirection=normalize(newPosition+params.directionRandomizer*randoms3);\n#elif defined(SPHEREEMITTER)\nlet randoms2 : vec3<f32>=getRandomVec3(seed.y,vertexID);let randoms3 : vec3<f32>=getRandomVec3(seed.z,vertexID);let phi : f32=2.0*PI*randoms2.x;let theta : f32=acos(-1.0+2.0*randoms2.y);let randX : f32=cos(phi)*sin(theta);let randY : f32=cos(theta);let randZ : f32=sin(phi)*sin(theta);newPosition=(params.radius-(params.radius*params.radiusRange*randoms2.z))*vec3<f32>(randX,randY,randZ);\n#ifdef DIRECTEDSPHEREEMITTER\nnewDirection=normalize(params.direction1+(params.direction2-params.direction1)*randoms3);\n#else\nnewDirection=normalize(newPosition+params.directionRandomizer*randoms3);\n#endif\n#elif defined(CYLINDEREMITTER)\nlet randoms2 : vec3<f32>=getRandomVec3(seed.y,vertexID);let randoms3 : vec3<f32>=getRandomVec3(seed.z,vertexID);let yPos : f32=(-0.5+randoms2.x)*params.height;var angle : f32=randoms2.y*PI*2.;let inverseRadiusRangeSquared : f32=(1.-params.radiusRange)*(1.-params.radiusRange);let positionRadius : f32=params.radius*sqrt(inverseRadiusRangeSquared+randoms2.z*(1.-inverseRadiusRangeSquared));let xPos : f32=positionRadius*cos(angle);let zPos : f32=positionRadius*sin(angle);newPosition=vec3<f32>(xPos,yPos,zPos);\n#ifdef DIRECTEDCYLINDEREMITTER\nnewDirection=params.direction1+(params.direction2-params.direction1)*randoms3;\n#else\nangle=angle+(-0.5+randoms3.x)*PI*params.directionRandomizer;newDirection=vec3<f32>(cos(angle),(-0.5+randoms3.y)*params.directionRandomizer,sin(angle));newDirection=normalize(newDirection);\n#endif\n#elif defined(CONEEMITTER)\nlet randoms2 : vec3<f32>=getRandomVec3(seed.y,vertexID);let s : f32=2.0*PI*randoms2.x;\n#ifdef CONEEMITTERSPAWNPOINT\nlet h : f32=0.0001;\n#else\nvar h : f32=randoms2.y*params.height.y;h=1.-h*h; \n#endif\nvar lRadius : f32=params.radius.x-params.radius.x*randoms2.z*params.radius.y;lRadius=lRadius*h;let randX : f32=lRadius*sin(s);let randZ : f32=lRadius*cos(s);let randY : f32=h *params.height.x;newPosition=vec3<f32>(randX,randY,randZ); \nlet randoms3 : vec3<f32>=getRandomVec3(seed.z,vertexID);\n#ifdef DIRECTEDCONEEMITTER\nnewDirection=params.direction1+(params.direction2-params.direction1)*randoms3;\n#else\nif (abs(cos(params.coneAngle))==1.0) {newDirection=vec3<f32>(0.,1.0,0.);} else {newDirection=normalize(newPosition+params.directionRandomizer*randoms3); }\n#endif\n#elif defined(CUSTOMEMITTER)\nnewPosition=particlesIn.particles[index].initialPosition;particlesOut.particles[index].initialPosition=newPosition;\n#else \nnewPosition=vec3<f32>(0.,0.,0.);newDirection=2.0*(getRandomVec3(seed.w,vertexID)-vec3<f32>(0.5,0.5,0.5));\n#endif\nlet power : f32=params.emitPower.x+(params.emitPower.y-params.emitPower.x)*randoms.a;\n#ifdef LOCAL\nparticlesOut.particles[index].position=newPosition;\n#else\nparticlesOut.particles[index].position=(params.emitterWM*vec4<f32>(newPosition,1.)).xyz;\n#endif\n#ifdef CUSTOMEMITTER\nparticlesOut.particles[index].direction=direction;\n#ifndef BILLBOARD \nparticlesOut.particles[index].initialDirection=direction;\n#endif\n#else\n#ifdef LOCAL\nlet initial : vec3<f32>=newDirection;\n#else \nlet initial : vec3<f32>=(params.emitterWM*vec4<f32>(newDirection,0.)).xyz;\n#endif\nparticlesOut.particles[index].direction=initial*power;\n#ifndef BILLBOARD \nparticlesOut.particles[index].initialDirection=initial;\n#endif\n#endif\n#ifdef ANIMATESHEET \nparticlesOut.particles[index].cellIndex=params.cellInfos.x;\n#ifdef ANIMATESHEETRANDOMSTART\nparticlesOut.particles[index].cellStartOffset=randoms.a*outLife;\n#endif \n#endif\n#ifdef NOISE\nparticlesOut.particles[index].noiseCoordinates1=particlesIn.particles[index].noiseCoordinates1;particlesOut.particles[index].noiseCoordinates2=particlesIn.particles[index].noiseCoordinates2;\n#endif\n} else {var directionScale : f32=timeDelta;particlesOut.particles[index].age=newAge;let ageGradient : f32=newAge/life;\n#ifdef VELOCITYGRADIENTS\ndirectionScale=directionScale*textureSampleLevel(velocityGradientTexture,velocityGradientSampler,vec2<f32>(ageGradient,0.),0.).r;\n#endif\n#ifdef DRAGGRADIENTS\ndirectionScale=directionScale*(1.0-textureSampleLevel(dragGradientTexture,dragGradientSampler,vec2<f32>(ageGradient,0.),0.).r);\n#endif\nlet position : vec3<f32>=particlesIn.particles[index].position;\n#if defined(CUSTOMEMITTER)\nparticlesOut.particles[index].position=position+(direction-position)*ageGradient; \nparticlesOut.particles[index].initialPosition=particlesIn.particles[index].initialPosition;\n#else\nparticlesOut.particles[index].position=position+direction*directionScale;\n#endif\nparticlesOut.particles[index].life=life;particlesOut.particles[index].seed=seed;\n#ifndef COLORGRADIENTS \nparticlesOut.particles[index].color=particlesIn.particles[index].color;\n#endif\n#ifdef SIZEGRADIENTS\nparticlesOut.particles[index].size=vec3<f32>(\ntextureSampleLevel(sizeGradientTexture,sizeGradientSampler,vec2<f32>(ageGradient,0.),0.).r,\nparticlesIn.particles[index].size.yz);\n#else\nparticlesOut.particles[index].size=particlesIn.particles[index].size;\n#endif \n#ifndef BILLBOARD \nparticlesOut.particles[index].initialDirection=particlesIn.particles[index].initialDirection;\n#endif\n#ifdef CUSTOMEMITTER\nparticlesOut.particles[index].direction=direction;\n#else\nvar updatedDirection : vec3<f32>=direction+params.gravity*timeDelta;\n#ifdef LIMITVELOCITYGRADIENTS\nlet limitVelocity : f32=textureSampleLevel(limitVelocityGradientTexture,limitVelocityGradientSampler,vec2<f32>(ageGradient,0.),0.).r;let currentVelocity : f32=length(updatedDirection);if (currentVelocity>limitVelocity) {updatedDirection=updatedDirection*params.limitVelocityDamping;}\n#endif\nparticlesOut.particles[index].direction=updatedDirection;\n#ifdef NOISE\nlet noiseCoordinates1 : vec3<f32>=particlesIn.particles[index].noiseCoordinates1;let noiseCoordinates2 : vec3<f32>=particlesIn.particles[index].noiseCoordinates2;let fetchedR : f32=textureSampleLevel(noiseTexture,noiseSampler,vec2<f32>(noiseCoordinates1.x,noiseCoordinates1.y)*vec2<f32>(0.5,0.5)+vec2<f32>(0.5,0.5),0.).r;let fetchedG : f32=textureSampleLevel(noiseTexture,noiseSampler,vec2<f32>(noiseCoordinates1.z,noiseCoordinates2.x)*vec2<f32>(0.5,0.5)+vec2<f32>(0.5,0.5),0.).r;let fetchedB : f32=textureSampleLevel(noiseTexture,noiseSampler,vec2<f32>(noiseCoordinates2.y,noiseCoordinates2.z)*vec2<f32>(0.5,0.5)+vec2<f32>(0.5,0.5),0.).r;let force : vec3<f32>=vec3<f32>(-1.+2.*fetchedR,-1.+2.*fetchedG,-1.+2.*fetchedB)*params.noiseStrength;particlesOut.particles[index].direction=particlesOut.particles[index].direction+force*timeDelta;particlesOut.particles[index].noiseCoordinates1=noiseCoordinates1;particlesOut.particles[index].noiseCoordinates2=noiseCoordinates2;\n#endif \n#endif \n#ifdef ANGULARSPEEDGRADIENTS\nlet angularSpeed : f32=textureSampleLevel(angularSpeedGradientTexture,angularSpeedGradientSampler,vec2<f32>(ageGradient,0.),0.).r;particlesOut.particles[index].angle=particlesIn.particles[index].angle+angularSpeed*timeDelta;\n#else\nlet angle : vec2<f32>=particlesIn.particles[index].angle;particlesOut.particles[index].angle=vec2<f32>(angle.x+angle.y*timeDelta,angle.y);\n#endif\n#ifdef ANIMATESHEET \nvar offsetAge : f32=particlesOut.particles[index].age;let dist : f32=params.cellInfos.y-params.cellInfos.x;\n#ifdef ANIMATESHEETRANDOMSTART\nlet cellStartOffset : f32=particlesIn.particles[index].cellStartOffset;particlesOut.particles[index].cellStartOffset=cellStartOffset;offsetAge=offsetAge+cellStartOffset;\n#else\nlet cellStartOffset : f32=0.;\n#endif \nvar ratio : f32;if (params.cellInfos.w==1.0) {ratio=clamp(((cellStartOffset+params.cellInfos.z*offsetAge) % life)/life,0.,1.0);}\nelse {ratio=clamp((cellStartOffset+params.cellInfos.z*offsetAge)/life,0.,1.0);}\nparticlesOut.particles[index].cellIndex=f32(i32(params.cellInfos.x+ratio*dist));\n#endif\n}}\n`;\n// Sideeffect\nShaderStore.ShadersStoreWGSL[name] = shader;\n/** @internal */\nexport const gpuUpdateParticlesComputeShaderWGSL = { name, shader 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