Test blur()

in bloomblend.frag, if we set the output to be the blur texture, then we can see the result of blurring.

    // set result = bloomColour to test blurring
    vec3 result = bloomColour;
    // vec3 result = blendColour;

Blur on a single direction

Blur on the X direction (50 passes):

Blur on the Y direction (50 passes):

Number of iterations

10 passes

50 passes

500 passes