# PV_Speed

**Category: **Particles

**Since engine version: **3.3 OC

## Description

The value will depend on the speed of the particle.

## Syntax

array PV_Speed(int factor, int start_value);

## Parameters

- factor:
Factor to multiply the speed with. 1000 is equal to a factor of 1.0. Defaults to 1000.

- start_value:
Base value to add to the calculated speed-value.

## Remark

See the

particle documentation for further explanations of the particle system.

Zapper, 2013-10