get defines to work as expected in blurPostProcess

src/PostProcess/babylon.blurPostProcess.ts

@@ -7,7 +7,7 @@
 		protected _kernel: number;
 		protected _idealKernel: number;
 		protected _packedFloat: boolean	= false;
-		protected _staticDefines:string = ""
+		private _staticDefines:string = ""
 		/**
 		 * Sets the length in pixels of the blur sample region
 		 */
@@ -59,9 +59,9 @@
          * @param reusable If the post process can be reused on the same frame. (default: false)
          * @param textureType Type of textures used when performing the post process. (default: 0)
          */
-        constructor(name: string, /** The direction in which to blur the image. */ public direction: Vector2, kernel: number, options: number | PostProcessOptions, camera: Nullable<Camera>, samplingMode: number = Texture.BILINEAR_SAMPLINGMODE, engine?: Engine, reusable?: boolean, textureType: number = Engine.TEXTURETYPE_UNSIGNED_INT) {
+        constructor(name: string, /** The direction in which to blur the image. */ public direction: Vector2, kernel: number, options: number | PostProcessOptions, camera: Nullable<Camera>, samplingMode: number = Texture.BILINEAR_SAMPLINGMODE, engine?: Engine, reusable?: boolean, textureType: number = Engine.TEXTURETYPE_UNSIGNED_INT, defines = "") {
 			super(name, "kernelBlur", ["delta", "direction", "cameraMinMaxZ"], ["depthSampler"], options, camera, samplingMode, engine, reusable, null, textureType, "kernelBlur", {varyingCount: 0, depCount: 0}, true);
-			
+			this._staticDefines = defines;
 			this.onApplyObservable.add((effect: Effect) => {
 				effect.setFloat2('delta', (1 / this.width) * this.direction.x, (1 / this.height) * this.direction.y);
 			});

src/PostProcess/babylon.depthOfFieldBlurPostProcess.ts

@@ -22,11 +22,9 @@ module BABYLON {
          * @param textureType Type of textures used when performing the post process. (default: 0)
          */
         constructor(name: string, scene: Scene, public direction: Vector2, kernel: number, options: number | PostProcessOptions, camera: Nullable<Camera>, depthMap:RenderTargetTexture, imageToBlur:Nullable<PostProcess> = null, samplingMode: number = Texture.BILINEAR_SAMPLINGMODE, engine?: Engine, reusable?: boolean, textureType: number = Engine.TEXTURETYPE_UNSIGNED_INT) {
-            super(name, direction, kernel, options, camera, samplingMode = Texture.BILINEAR_SAMPLINGMODE, engine, reusable, textureType = Engine.TEXTURETYPE_UNSIGNED_INT);
-            this._staticDefines += `#define DOF 1\r\n`;
+            super(name, direction, kernel, options, camera, samplingMode = Texture.BILINEAR_SAMPLINGMODE, engine, reusable, textureType = Engine.TEXTURETYPE_UNSIGNED_INT, `#define DOF 1\r\n`);
 			
 			this.onApplyObservable.add((effect: Effect) => {
-                // TODO: setTextureFromPostProcess seems to be setting the input texture instead of output of the post process passed in 
                 if(imageToBlur != null){
                     effect.setTextureFromPostProcess("textureSampler", imageToBlur);
                 }