Create particle spawning positions with Visual Effect Graph

Trigger effects between particles with Visual Effect Graph

Challenge: Create a Firework Effect using a GPU Event

Integrate Shader Graph into Visual Effect Graph

Challenge: Use a GPU event to spawn the rocket trails

Creating Fireworks with VFX Graph and ShaderGraph - Recorded Learn Live Session

With Unity’s Visual Effect Graph, you can trigger particles to spawn by using events. As an extension of this, you can trigger events using other systems. 

In this tutorial, you’ll learn what GPU Events are, explore their different blocks, and see an example of their use. 

Using a fireworks effect as an example, you will also learn how GPU Events can be applied in the systems of a fireworks effect.

Introduction

Before you begin

Add GPU Events to an effect

Configure GPU Events

Next steps

In this challenge, you will create a Firework Effect using a GPU Event in the VFX Graph

Create a Rocket Effect using the VFX Graph

Use a GPU event to trigger a new set of particles

VFX_201_ProjectFiles.zip

In this project, you will learn how to apply and configure some of the key VFX properties in Unity’s Visual FX Graph tool. You will utilise GPU events to create realistic fireworks effects, and you will learn how to integrate Shader Graph with Visual Effects graph to enhance the look and feel of visual effects.

Suggested Skill Level & Prerequisite Knowledge - It is expected participants should already have some understanding of the following:

Unity Editor level: Beginner to Intermediate

2019.3

Creating fireworks with VFX Graph and ShaderGraph

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Games

Film

Automotive

1. To Spawn the rockets randomly, configure a Periodic Burst Block

2. Initialize the particles with the following Blocks
    a. Set Lifetime Random
    b. Position (Line)
    c. Add Velocity
    d. Set Color

3. To create realistic looking projectile flight add the Gravity Block in the Update context

4. Configure the Output Context to be a simple Output Particle Point

Figure 01: Finished Rocket Graph

Figure 02: Gif showing the rockets firing

1. Enable Experimental Operators / Blocks in the Preferences

2. Add a Trigger Event on Die block to the Update Context

3. Configure the Trigger Event on Die block to create a new particle system

4. Setup the new particle system to simulate a firework’s explosion 

Challenge: Create a Firework Effect using a GPU Event

1. Create a Rocket Effect using the VFX Graph

2. Use a GPU event to trigger a new set of particles

Complete this tutorial