THREE.js blur the frame buffer

I need to blur the frame buffer and I don't know how to get the frame buffer using THREE.js. I want to blur the whole frame buffer rather than blur each textures in the scene. So I guess I should read the frame buffer and then blur, rather than doing this in shaders. Here's what I have tried: Call when init: var renderTarget = new THREE.WebGLRenderTarget(512, 512, { wrapS: THREE.RepeatWrapping, wr

[harigel]

blur frame buffer

[hisasann]

ブラー、 blur