# Define Measurement Points

To calibrate the `Tracking Light Fixtures` we need some reference points within the tracking area.

This points should be “reachable/lightable” from all light fixtures and should be easy to measure.

{% hint style="info" %}
We should have at least 5 measurement points for a good result.\
In each corner of the tracking area and one in the center.\
More are preferred, as well as different heights.
{% endhint %}

{% hint style="warning" %}
please measure the points as accurately as possible.\
The more precisely the points are measured, the better the result.
{% endhint %}

### Placing Measurement Points in Grid Studio

For each of these calibration points in the tracking area, place a `Measurement Point` in the Grid Studio project at the same corresonding location. Giving uniquely identifiable names to each of these points would be helpful to reduce confusion during the Calibration process.

{% hint style="info" %}
Once these reference points are located within the tracking area, it is a good idea to communicate with the lighting team to build presets on the lighting desk to have all the lights aiming and focused on these reference points IF there is a lighting desk that is sending data over to Grid Studio.
{% endhint %}


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