var BABYLON;!function(r){var o=function(o){function n(n,e,t,l,i){o.call(this,n,e,"grassProceduralTexture",t,l,i),this._herb1=new r.Color3(.29,.38,.02),this._herb2=new r.Color3(.36,.49,.09),this._herb3=new r.Color3(.51,.6,.28),this._groundColor=new r.Color3(1,1,1),this._grassColors=[new r.Color3(.29,.38,.02),new r.Color3(.36,.49,.09),new r.Color3(.51,.6,.28)],this.updateShaderUniforms()}return __extends(n,o),n.prototype.updateShaderUniforms=function(){this.setColor3("herb1Color",this._grassColors[0]),this.setColor3("herb2Color",this._grassColors[1]),this.setColor3("herb3Color",this._grassColors[2]),this.setColor3("groundColor",this._groundColor)},Object.defineProperty(n.prototype,"grassColors",{get:function(){return this._grassColors},set:function(r){this._grassColors=r,this.updateShaderUniforms()},enumerable:!0,configurable:!0}),Object.defineProperty(n.prototype,"groundColor",{get:function(){return this._groundColor},set:function(r){this.groundColor=r,this.updateShaderUniforms()},enumerable:!0,configurable:!0}),n}(r.ProceduralTexture);r.GrassProceduralTexture=o}(BABYLON||(BABYLON={})),BABYLON.Effect.ShadersStore.grassProceduralTexturePixelShader="precision highp float;\r\n\r\nvarying vec2 vPosition;\r\nvarying vec2 vUV;\r\n\r\nuniform vec3 herb1Color;\r\nuniform vec3 herb2Color;\r\nuniform vec3 herb3Color;\r\nuniform vec3 groundColor;\r\n\r\nfloat rand(vec2 n) {\r\n	return fract(cos(dot(n, vec2(12.9898, 4.1414))) * 43758.5453);\r\n}\r\n\r\nfloat noise(vec2 n) {\r\n	const vec2 d = vec2(0.0, 1.0);\r\n	vec2 b = floor(n), f = smoothstep(vec2(0.0), vec2(1.0), fract(n));\r\n	return mix(mix(rand(b), rand(b + d.yx), f.x), mix(rand(b + d.xy), rand(b + d.yy), f.x), f.y);\r\n}\r\n\r\nfloat fbm(vec2 n) {\r\n	float total = 0.0, amplitude = 1.0;\r\n	for (int i = 0; i < 4; i++) {\r\n		total += noise(n) * amplitude;\r\n		n += n;\r\n		amplitude *= 0.5;\r\n	}\r\n	return total;\r\n}\r\n\r\nvoid main(void) {\r\n	vec3 color = mix(groundColor, herb1Color, rand(gl_FragCoord.xy * 4.0));\r\n	color = mix(color, herb2Color, rand(gl_FragCoord.xy * 8.0));\r\n	color = mix(color, herb3Color, rand(gl_FragCoord.xy));\r\n	color = mix(color, herb1Color, fbm(gl_FragCoord.xy * 16.0));\r\n	gl_FragColor = vec4(color, 1.0);\r\n}";