I have another bug :-/ If I call viewPort.removeProcessor(fpp); with 4x MSAA, the app crashes with an NPE. 1x MSAA works fine
java.lang.NullPointerException
at com.jme3.post.FilterPostProcessor.cleanup(FilterPostProcessor.java:393)
at com.jme3.renderer.ViewPort.removeProcessor(ViewPort.java:150)
at jme3test.post.TestBloomDofMsaa$1.onAction(TestBloomDofMsaa.java:79)
at com.jme3.input.InputManager.invokeActions(InputManager.java:169)
at com.jme3.input.InputManager.onKeyEventQueued(InputManager.java:455)
at com.jme3.input.InputManager.processQueue(InputManager.java:856)
at com.jme3.input.InputManager.update(InputManager.java:908)
at com.jme3.app.Application.update(Application.java:690)
at com.jme3.app.SimpleApplication.update(SimpleApplication.java:234)
at com.jme3.system.lwjgl.LwjglAbstractDisplay.runLoop(LwjglAbstractDisplay.java:152)
at com.jme3.system.lwjgl.LwjglDisplay.runLoop(LwjglDisplay.java:192)
at com.jme3.system.lwjgl.LwjglAbstractDisplay.run(LwjglAbstractDisplay.java:233)
at java.lang.Thread.run(Thread.java:745)
Edit: this should fix it
FilterPostProcessor:393
if (renderFrameBuffer!= null)
{
renderFrameBuffer.dispose();
}