Fix bug with particle replicator

dist/preview release/viewer/babylon.viewer.d.ts

@@ -924,7 +924,7 @@ declare module BabylonViewer {
       * @param name the name of the custom optimizer configuration
       * @param upgrade set to true if you want to upgrade optimizer and false if you want to degrade
       */
-    export function getCustomOptimizerByName(name: string, upgrade?: boolean): typeof extendedUpgrade;
+    export function getCustomOptimizerByName(name: string, upgrade?: boolean): (sceneManager: SceneManager) => boolean;
     export function registerCustomOptimizer(name: string, optimizer: (sceneManager: SceneManager) => boolean): void;
 }
 declare module BabylonViewer {
@@ -1558,20 +1558,6 @@ declare module BabylonViewer {
     export function addLoaderPlugin(name: string, plugin: ILoaderPlugin): void;
 }
 declare module BabylonViewer {
-    /**
-        * A custom upgrade-oriented function configuration for the scene optimizer.
-        *
-        * @param viewer the viewer to optimize
-        */
-    export function extendedUpgrade(sceneManager: SceneManager): boolean;
-    /**
-        * A custom degrade-oriented function configuration for the scene optimizer.
-        *
-        * @param viewer the viewer to optimize
-        */
-    export function extendedDegrade(sceneManager: SceneManager): boolean;
-}
-declare module BabylonViewer {
 }
 declare module BabylonViewer {
     export interface IEnvironmentMapConfiguration {

dist/preview release/viewer/babylon.viewer.module.d.ts

@@ -985,14 +985,13 @@ declare module 'babylonjs-viewer/templating/viewerTemplatePlugin' {
 }
 
 declare module 'babylonjs-viewer/optimizer/custom' {
-    import { extendedUpgrade } from "babylonjs-viewer/optimizer/custom/extended";
     import { SceneManager } from "babylonjs-viewer/managers/sceneManager";
     /**
       *
       * @param name the name of the custom optimizer configuration
       * @param upgrade set to true if you want to upgrade optimizer and false if you want to degrade
       */
-    export function getCustomOptimizerByName(name: string, upgrade?: boolean): typeof extendedUpgrade;
+    export function getCustomOptimizerByName(name: string, upgrade?: boolean): (sceneManager: SceneManager) => boolean;
     export function registerCustomOptimizer(name: string, optimizer: (sceneManager: SceneManager) => boolean): void;
 }
 
@@ -1663,22 +1662,6 @@ declare module 'babylonjs-viewer/loader/plugins' {
     export function addLoaderPlugin(name: string, plugin: ILoaderPlugin): void;
 }
 
-declare module 'babylonjs-viewer/optimizer/custom/extended' {
-    import { SceneManager } from 'babylonjs-viewer/managers/sceneManager';
-    /**
-        * A custom upgrade-oriented function configuration for the scene optimizer.
-        *
-        * @param viewer the viewer to optimize
-        */
-    export function extendedUpgrade(sceneManager: SceneManager): boolean;
-    /**
-        * A custom degrade-oriented function configuration for the scene optimizer.
-        *
-        * @param viewer the viewer to optimize
-        */
-    export function extendedDegrade(sceneManager: SceneManager): boolean;
-}
-
 declare module 'babylonjs-viewer/configuration/interfaces' {
     export * from 'babylonjs-viewer/configuration/interfaces/cameraConfiguration';
     export * from 'babylonjs-viewer/configuration/interfaces/colorGradingConfiguration';

src/Particles/babylon.particle.ts

@@ -239,7 +239,7 @@
             other.colorStep.copyFrom(this.colorStep);
             other.lifeTime = this.lifeTime;
             other.age = this.age;
-            other._randomCellOffset = undefined;
+            other._randomCellOffset = this._randomCellOffset;
             other.size = this.size;
             other.scale.copyFrom(this.scale);
             other.angle = this.angle;
@@ -287,11 +287,11 @@
             }
             if (this._randomNoiseCoordinates1) {
                 if (other._randomNoiseCoordinates1) {
-                    other._randomNoiseCoordinates1.copyFromFloats(Math.random(), Math.random(), Math.random());
-                    other._randomNoiseCoordinates2.copyFromFloats(Math.random(), Math.random(), Math.random());
+                    other._randomNoiseCoordinates1.copyFrom(this._randomNoiseCoordinates1);
+                    other._randomNoiseCoordinates2.copyFrom(this._randomNoiseCoordinates2);
                 } else {
-                    other._randomNoiseCoordinates1 = new Vector3(Math.random(), Math.random(), Math.random());
-                    other._randomNoiseCoordinates2 = new Vector3(Math.random(), Math.random(), Math.random());
+                    other._randomNoiseCoordinates1 = this._randomNoiseCoordinates1.clone();
+                    other._randomNoiseCoordinates2 = this._randomNoiseCoordinates2.clone();
                 }
             }
         }