# AddParticlesScaleKeyFrame

## Description

Adds a size change at a certain point in a particle's life. Scale values are relative to the value set by SetParticlesSize so a scale of 2 means double its normal size and 0.5 is half its normal size. A scale added with time=1 will make the particle equal the given size when it has been alive for 1 second. The particle will gradually transform from its current size to the next size.

## Definition

AddParticlesScaleKeyFrame( ID, time, scale )

void agk::AddParticlesScaleKeyFrame( UINT ID, float time, float scale )

## Parameters

- ID - The ID of the emitter to modify.
- time - The time that particles should become this size.
- scale - The scale relative to the normal particle size, must be greater then or equal to 0.