Fullscreen blur. A image postprocessing shader effect

Simple post processing effect to blur image. Shader code

It leverages a common digital image transformation called “filtering” with 3x3 kernel (or mask). Below is an image with a simple bluring using kernel:

new [
    1, 1, 1,
    1, 1, 1,
    1, 1, 1
]

Use slider to shift comparsion divider:

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