# Behind To Event Camera

### Signature

```c
void behindtoeventcamera(int identifier, float time, int unused, int easingType); //id:0x034f
```

### Description

Performs a transition from the battle camera to an event camera over time.

### Arguments

#### Identifier

The identifier of the camera that will be transitioned to.

Usually, it's OR'ed by `0x02000000` before passing it as an argument. However, this is not necessary and probably just a leftover from the dev tools used to automate the process of the camera selection.

This identifier refers to the camera entry in the section 8 file of the ebp file of the location. 

#### Time

The amount of seconds it takes until the camera transition is complete.

#### Unused

This argument is unused.

#### Easing Type

Controls the amount of easing on the camera transition.

<table><thead><tr><th width="129.33333333333331">Identifier</th><th width="297">Description</th><th>Calculation</th></tr></thead><tbody><tr><td>0</td><td>Fast start and middle, normal end.</td><td><span class="math">f(x) = (sin((x * π) - π / 2) + 1) / 2</span></td></tr><tr><td>1</td><td>Slow start, normal middle and end.</td><td><span class="math">f(x) = sin((x * π) / 2 - π / 2) + 1</span></td></tr><tr><td>2</td><td>Fast start, normal middle, slow end.</td><td><span class="math">f(x) = sin(x * (π / 2))</span></td></tr><tr><td>3</td><td>No easing.</td><td><span class="math">f(x) = x</span></td></tr></tbody></table>

### Notes

{% hint style="warning" %}
**Before calling this function:**

* Prevent the player from modifying the battle camera by calling the[Set No Update Behind Camera](/the-insurgents-handbook/scripts/vm-call-targets/set-no-update-behind-camera.md) or [Set No Update Behind Camera System](/the-insurgents-handbook/scripts/vm-call-targets/set-no-update-behind-camera-system.md) function.

**After calling this function:**

* Enable and switch to the transitioned event camera via the [Camera Start 7D](/the-insurgents-handbook/scripts/vm-call-targets/camera-start-7d.md) function. Otherwise the battle camera will remain active and the transition will have no point as the camera will snap back right behind the player.
  {% endhint %}

{% hint style="info" %}
If a time value higher than 0 is used, the [Behind To Event Camera Sync](/the-insurgents-handbook/scripts/vm-call-targets/behind-to-event-camera-sync.md) function should be called soon after this one to stop the execution of the following functions until the camera transition is completed.
{% endhint %}


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