# Collisions

## Overview

The Collision rollout enables preventing elements from accidental overlapping.

![](/files/-MUSz1k7vo_SBaPI4UwE)

**Level** - Defines the position of the virtual bounding sphere encapsulating the geometry. Value is expressed as the percentage of the individual entity height.\
**Size** - Influences the size of the virtual bounding sphere encapsulating the geometry. Value is expressed as the percentage of the individual entity size parameter.

{% hint style="warning" %}
Keep in mind that using it isn't a cure for all evil. In a situation where [Distribution ](/manual/distribution.md)settings are suboptimal, enabling it may bring unnecessary extra workload and impact the performance of the population process without giving better results.
{% endhint %}


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