Color over lifetime

Learn particle color with Color over Lifetime.

Color over Lifetime Module

Particles do not need to remain a static color throughout their lifespan. The Color over Lifetime module controls how a particle's color and transparency (alpha) evolve from birth to death. This allows flame particles to transition from yellow to red, and finally into grey smoke.

var col = ps.colorOverLifetime;
col.enabled = true;

Color and Transparency Transitions with Gradient

Color transition is defined using a Gradient structure. Gradients contain color keys and alpha keys. For instance, configuring a particle to spawn fully visible (alpha = 1) and fade away gently upon death (alpha = 0) is achieved through these keys.

// Color and transparency change over time in Gradient:
// Start: White, End: Transparent

Exercise Enable Color Module

Set col.enabled to true and print it with Debug.Log("Renk modulu: " + col.enabled);.

Show example solution

using System;

public class ColorOverLifetimeModule
{
    public bool enabled = false;
}

public static class Debug
{
    public static void Log(object message) => Console.WriteLine(message);
}

public class Program
{
    public static void Main()
    {
        ColorOverLifetimeModule col = new ColorOverLifetimeModule();
        col.enabled = true;
        Debug.Log("Renk modulu: " + col.enabled);
    }
}

Test yourself

Which module allows a particle's color and transparency to transition gradually from birth to death?
- Collision
- Color over Lifetime
- Size over Lifetime
- Velocity over Lifetime
Show answer

Color over Lifetime — The Color over Lifetime module changes the particle's color and transparency across its lifetime using a gradient.

Select Module

var renkModulu = ps.____;

Show answer

var renkModulu = ps.colorOverLifetime;

Color Module Concepts

Color over Lifetime

Color and alpha change over lifetime
Gradient

Smooth transition scale between colors
Alpha Key

Transparency stop at a point
Color Key

Hue stop at a specific point

Next lesson: Start Size and Rotation

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