I'm getting aliasing when using a NME post process

Hi I’m wanting to use a custom post processing effect I built using the NME but it’s introducing aliasing on my scene. What is the best way to get rid of this aliasing?

Simple example: Babylon.js Playground

Also, I’m using this along side the DefaultRenderPipeline – is there a best practice on combining those post processing effects with custom NME post processing effects?

The samples is set to 1 by default, just set it to 4 or 8 to make it work.