Merge pull request #9109 from RaananW/outputRenderTargetXR

Allow post processes on cameras with output render targets

dist/preview release/what's new.md

@@ -212,6 +212,7 @@
 - XR's main camera uses the first eye's projection matrix ([#8944](https://github.com/BabylonJS/Babylon.js/issues/8944)) ([RaananW](https://github.com/RaananW))
 - pointerX and pointerY of the scene are now updated when using the pointer selection feature ([#8879](https://github.com/BabylonJS/Babylon.js/issues/8879)) ([RaananW](https://github.com/RaananW))
 - XR tracking state was added to the camera ([#9076](https://github.com/BabylonJS/Babylon.js/issues/9076)) ([RaananW](https://github.com/RaananW))
+- Individual post processing can be applied to the XR rig cameras ([#9038](https://github.com/BabylonJS/Babylon.js/issues/9038)) ([RaananW](https://github.com/RaananW))
 - Pointer selection improvements - single/dual hand selection, max ray distance and more ([#7974](https://github.com/BabylonJS/Babylon.js/issues/7974)) ([RaananW](https://github.com/RaananW))
 
 ### Collisions

src/scene.ts

@@ -3789,7 +3789,9 @@ export class Scene extends AbstractScene implements IAnimatable, IClipPlanesHold
 
         // Finalize frame
         if (this.postProcessManager && !camera._multiviewTexture) {
-            this.postProcessManager._finalizeFrame(camera.isIntermediate);
+            // if the camera has an output render target, render the post process to the render target
+            const texture = camera.outputRenderTarget ? camera.outputRenderTarget.getInternalTexture()! : undefined;
+            this.postProcessManager._finalizeFrame(camera.isIntermediate, texture);
         }
 
         // Reset some special arrays