babylon.cloudProceduralTexture.js 2.7 KB

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  1. /// <reference path="../../../dist/preview release/babylon.d.ts"/>
  2. var __extends = (this && this.__extends) || function (d, b) {
  3. for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
  4. function __() { this.constructor = d; }
  5. d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
  6. };
  7. var BABYLON;
  8. (function (BABYLON) {
  9. var CloudProceduralTexture = (function (_super) {
  10. __extends(CloudProceduralTexture, _super);
  11. function CloudProceduralTexture(name, size, scene, fallbackTexture, generateMipMaps) {
  12. _super.call(this, name, size, "cloudProceduralTexture", scene, fallbackTexture, generateMipMaps);
  13. this._skyColor = new BABYLON.Color4(0.15, 0.68, 1.0, 1.0);
  14. this._cloudColor = new BABYLON.Color4(1, 1, 1, 1.0);
  15. this.updateShaderUniforms();
  16. }
  17. CloudProceduralTexture.prototype.updateShaderUniforms = function () {
  18. this.setColor4("skyColor", this._skyColor);
  19. this.setColor4("cloudColor", this._cloudColor);
  20. };
  21. Object.defineProperty(CloudProceduralTexture.prototype, "skyColor", {
  22. get: function () {
  23. return this._skyColor;
  24. },
  25. set: function (value) {
  26. this._skyColor = value;
  27. this.updateShaderUniforms();
  28. },
  29. enumerable: true,
  30. configurable: true
  31. });
  32. Object.defineProperty(CloudProceduralTexture.prototype, "cloudColor", {
  33. get: function () {
  34. return this._cloudColor;
  35. },
  36. set: function (value) {
  37. this._cloudColor = value;
  38. this.updateShaderUniforms();
  39. },
  40. enumerable: true,
  41. configurable: true
  42. });
  43. return CloudProceduralTexture;
  44. }(BABYLON.ProceduralTexture));
  45. BABYLON.CloudProceduralTexture = CloudProceduralTexture;
  46. })(BABYLON || (BABYLON = {}));
  47. //# sourceMappingURL=babylon.cloudProceduralTexture.js.map
  48. BABYLON.Effect.ShadersStore['cloudProceduralTexturePixelShader'] = "precision highp float;\nvarying vec2 vUV;\nuniform vec4 skyColor;\nuniform vec4 cloudColor;\nfloat rand(vec2 n) {\nreturn fract(cos(dot(n,vec2(12.9898,4.1414)))*43758.5453);\n}\nfloat noise(vec2 n) {\nconst vec2 d=vec2(0.0,1.0);\nvec2 b=floor(n),f=smoothstep(vec2(0.0),vec2(1.0),fract(n));\nreturn mix(mix(rand(b),rand(b+d.yx),f.x),mix(rand(b+d.xy),rand(b+d.yy),f.x),f.y);\n}\nfloat fbm(vec2 n) {\nfloat total=0.0,amplitude=1.0;\nfor (int i=0; i<4; i++) {\ntotal+=noise(n)*amplitude;\nn+=n;\namplitude*=0.5;\n}\nreturn total;\n}\nvoid main() {\nvec2 p=vUV*12.0;\nvec4 c=mix(skyColor,cloudColor,fbm(p));\ngl_FragColor=c;\n}\n";