I've got a brightpass effect, a blur effect and a composite effect currently combined working to do a bloom post process pass.
I've got 250 spheres drawn at 1000 FPS before post process and at 270 FPS after post process.
The idea is that people can create there own post process components and then mix and match them, I'm going to use the blur effect and composite effect to make a depth of field using an in built depth buffer for example.
