# Test blur()
in bloomblend.frag, if we set the output to be the blur texture, then we can see the result of blurring.
```glsl
// 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
