{"ast":null,"code":"// Do not edit.\nimport { ShaderStore } from \"../Engines/shaderStore.js\";\nconst name = \"noisePixelShader\";\nconst shader = `uniform float brightness;uniform float persistence;uniform float timeScale;varying vec2 vUV;vec2 hash22(vec2 p)\n{p=p*mat2(127.1,311.7,269.5,183.3);p=-1.0+2.0*fract(sin(p)*43758.5453123);return sin(p*6.283+timeScale);}\nfloat interpolationNoise(vec2 p)\n{vec2 pi=floor(p);vec2 pf=p-pi;vec2 w=pf*pf*(3.-2.*pf);float f00=dot(hash22(pi+vec2(.0,.0)),pf-vec2(.0,.0));float f01=dot(hash22(pi+vec2(.0,1.)),pf-vec2(.0,1.));float f10=dot(hash22(pi+vec2(1.0,0.)),pf-vec2(1.0,0.));float f11=dot(hash22(pi+vec2(1.0,1.)),pf-vec2(1.0,1.));float xm1=mix(f00,f10,w.x);float xm2=mix(f01,f11,w.x);float ym=mix(xm1,xm2,w.y); \nreturn ym;}\nfloat perlinNoise2D(float x,float y)\n{float sum=0.0;float frequency=0.0;float amplitude=0.0;for(int i=0; i<OCTAVES; i++)\n{frequency=pow(2.0,float(i));amplitude=pow(persistence,float(i));sum=sum+interpolationNoise(vec2(x*frequency,y*frequency))*amplitude;}\nreturn sum;}\n#define CUSTOM_FRAGMENT_DEFINITIONS\nvoid main(void)\n{float x=abs(vUV.x);float y=abs(vUV.y);float noise=brightness+(1.0-brightness)*perlinNoise2D(x,y);gl_FragColor=vec4(noise,noise,noise,1.0);}\n`;\n// Sideeffect\nShaderStore.ShadersStore[name] = shader;\n/** @internal */\nexport const noisePixelShader = {\n  name,\n  shader\n};","map":{"version":3,"names":["ShaderStore","name","shader","ShadersStore","noisePixelShader"],"sources":["F:/workspace/202226701027/huinongbao-app/node_modules/@babylonjs/core/Shaders/noise.fragment.js"],"sourcesContent":["// Do not edit.\nimport { ShaderStore } from \"../Engines/shaderStore.js\";\nconst name = \"noisePixelShader\";\nconst shader = `uniform float brightness;uniform float persistence;uniform float timeScale;varying vec2 vUV;vec2 hash22(vec2 p)\n{p=p*mat2(127.1,311.7,269.5,183.3);p=-1.0+2.0*fract(sin(p)*43758.5453123);return sin(p*6.283+timeScale);}\nfloat interpolationNoise(vec2 p)\n{vec2 pi=floor(p);vec2 pf=p-pi;vec2 w=pf*pf*(3.-2.*pf);float f00=dot(hash22(pi+vec2(.0,.0)),pf-vec2(.0,.0));float f01=dot(hash22(pi+vec2(.0,1.)),pf-vec2(.0,1.));float f10=dot(hash22(pi+vec2(1.0,0.)),pf-vec2(1.0,0.));float f11=dot(hash22(pi+vec2(1.0,1.)),pf-vec2(1.0,1.));float xm1=mix(f00,f10,w.x);float xm2=mix(f01,f11,w.x);float ym=mix(xm1,xm2,w.y); \nreturn ym;}\nfloat perlinNoise2D(float x,float y)\n{float sum=0.0;float frequency=0.0;float amplitude=0.0;for(int i=0; i<OCTAVES; i++)\n{frequency=pow(2.0,float(i));amplitude=pow(persistence,float(i));sum=sum+interpolationNoise(vec2(x*frequency,y*frequency))*amplitude;}\nreturn sum;}\n#define CUSTOM_FRAGMENT_DEFINITIONS\nvoid main(void)\n{float x=abs(vUV.x);float y=abs(vUV.y);float noise=brightness+(1.0-brightness)*perlinNoise2D(x,y);gl_FragColor=vec4(noise,noise,noise,1.0);}\n`;\n// Sideeffect\nShaderStore.ShadersStore[name] = shader;\n/** @internal */\nexport const noisePixelShader = { name, shader };\n"],"mappings":"AAAA;AACA,SAASA,WAAW,QAAQ,2BAA2B;AACvD,MAAMC,IAAI,GAAG,kBAAkB;AAC/B,MAAMC,MAAM,GAAG;AACf;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA,CAAC;AACD;AACAF,WAAW,CAACG,YAAY,CAACF,IAAI,CAAC,GAAGC,MAAM;AACvC;AACA,OAAO,MAAME,gBAAgB,GAAG;EAAEH,IAAI;EAAEC;AAAO,CAAC","ignoreList":[]},"metadata":{},"sourceType":"module","externalDependencies":[]}