# Test blend()
If blurring is OK we are just one step from blending.
### Now in bloomblend.frag, let's move back to use the blend colour.
```glsl
// set "result = bloomColour" to test blurring
// vec3 result = bloomColour;
vec3 result = blendColour;
```
## Result
### Simple Additive
If you use simple additive blending, you are going to see something similar to the following
### 10 blur passes:
#### 50 blur passes
### High Dynamic Range
If you use High Dynamic Range, you will see something similar to the following
#### 10 blur passes:
50 blur passes
