Color and size over lifetime in Unity - Cheat Sheet & Quick Revision

Recall & Review

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What does 'Color over Lifetime' control in Unity's Particle System?

It controls how the color of particles changes from birth to death, allowing smooth transitions or sudden changes over the particle's lifetime.

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How does 'Size over Lifetime' affect particles in Unity?

It changes the size of particles as they age, letting them grow, shrink, or stay constant during their lifetime.

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Which Unity module allows you to animate particle color and size over time?

The 'Color over Lifetime' and 'Size over Lifetime' modules inside the Particle System component.

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How do you enable 'Color over Lifetime' in Unity's Particle System?

In the Particle System inspector, check the 'Color over Lifetime' box and edit the color gradient to define color changes over time.

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What is a gradient in the context of 'Color over Lifetime'?

A gradient is a smooth blend between colors that defines how particle color changes from start to end of its life.

What does the 'Size over Lifetime' module do in Unity's Particle System?

A Controls particle speed

B Changes particle color instantly

C Changes particle size as they age

D Spawns new particles

The 'Size over Lifetime' module changes the size of particles gradually during their lifetime.

How do you define color changes in 'Color over Lifetime'?

A Using a gradient

B Using a single color

C Using particle speed

D Using particle size

A gradient lets you smoothly blend colors over the particle's lifetime.

Which module must be enabled to animate particle color over time?

A Color over Lifetime

B Size over Lifetime

C Emission

D Shape

The 'Color over Lifetime' module controls color animation during particle life.

Can 'Size over Lifetime' make particles grow larger as they age?

A No

B Yes

C Only if color changes

D Only with scripts

You can set size curves to make particles grow or shrink over time.

What happens if you do not enable 'Color over Lifetime'?

A Particles change size

B Particles change color randomly

C Particles disappear

D Particles keep their start color

Without 'Color over Lifetime', particles keep their initial color throughout life.

Explain how you would use 'Color over Lifetime' to make particles fade from red to transparent.

Think about setting colors at the start and end of the gradient.

Describe how 'Size over Lifetime' can be used to create a particle effect where particles start small and grow bigger.

Consider how size changes from birth to death.