Fix default render pipeline image processing (#8399)

* Fix crash when loading vertex colors from a .obj file

* Fix the image processing effect when enabling/disabling

* Revert fix because handled in another PR

* What's new update

* Revert changes

* Keep imageProcessingEnabled flag in sync with scene image processing

dist/preview release/what's new.md

@@ -231,6 +231,7 @@
 - Fixed `DracoCompression` to not load empty data into attributes ([bghgary](https://github.com/bghgary))
 - Fixed `Mesh.subdivide` where one face could be lost depending on the number of subdivision ([Popov72](https://github.com/Popov72))
 - Fixed `AssetContainer.instantiateModelsToScene` with cloneMaterials=true and MultiMaterials to properly set the cloned submaterials ([ghempton](https://github.com/ghempton))
+- Fixed wrong display when setting `DefaultRenderingPipeline.imageProcessingEnabled` to `false` ([Popov72](https://github.com/Popov72))
 - Fix crash when loading a .obj file with vertex colors ([Popov72](https://github.com/Popov72))
 
 ## Breaking changes

src/PostProcesses/RenderPipeline/Pipelines/defaultRenderingPipeline.ts

@@ -334,9 +334,8 @@ export class DefaultRenderingPipeline extends PostProcessRenderPipeline implemen
         if (this._imageProcessingEnabled === enabled) {
             return;
         }
-        this._imageProcessingEnabled = enabled;
 
-        this._buildPipeline();
+        this._scene.imageProcessingConfiguration.isEnabled = enabled;
     }
 
     @serialize()
@@ -460,6 +459,11 @@ export class DefaultRenderingPipeline extends PostProcessRenderPipeline implemen
 
         this._imageProcessingConfigurationObserver = this._scene.imageProcessingConfiguration.onUpdateParameters.add(() => {
             this.bloom._downscale._exposure = this._scene.imageProcessingConfiguration.exposure;
+
+            if (this.imageProcessingEnabled !== this._scene.imageProcessingConfiguration.isEnabled) {
+                this._imageProcessingEnabled = this._scene.imageProcessingConfiguration.isEnabled;
+                this._buildPipeline();
+            }
         });
 
         this._buildPipeline();