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## Introduction

## Time-Based Solvers

### Lesson 1 of 4 Houdini Particles

Before getting into Houdini’s POPs particle network, we’re going to learn what’s happening under the hood by building several of our own time-based solvers from scratch. This will provide a great fundamental understanding of simulation environments, data, and how to add your own functionality to built-in Houdini solvers.

Discuss this LessonLesson 1 Assignments0 of 2 Assignments Completed

#### Assignment

Create your own geometry solver to do an interesting time-based effect. You can combine this with tools learned in this lesson or create something completely unique and original. Growing patterns, cellular division, and morphng effects are all examples of things you can try and tackle.

#### Extra Credit

You are an archer up against an army of orcs. Use your particle system to create a simulation which launches a volley of arrows into the air with the correct aim and velocity to hit your target objects. Use the real-world physics formula

*d = v0 + 1/2 * at²*

## Student Homework

This:

### Lesson 1

this lesson## Time-Based Solvers

Before getting into Houdini’s POPs particle network, we’re going to learn what’s happening under the hood by building several of our own time-based solvers from scratch. This will provide a great fundamental understanding of simulation environments, data, and how to add your own functionality to built-in Houdini solvers.- 2 hours 15 minutesTotal Lesson Duration
- 24 VideosVideo Lectures in this Lesson
- Project FilesDownloadable Project Files

#### Guidance

##### Lesson Overview

##### The Solver SOP

##### Homemade Particle System

##### Particle Collision Detection

##### Conclusion

### Lesson 2

## Intro to Particles

We’re going to dive into Houdini’s POP network and learn the basics of particle simulations. Here, you’ll become familiar with the core components of our dynamics system, including emitters, forces, colliders, and more. We’ll then use these skills to take into the next lesson to create more advanced systems.- 2 hours 42 minutesTotal Lesson Duration
- 17 VideosVideo Lectures in this Lesson
- Project FilesDownloadable Project Files

#### Guidance

##### Introduction

##### Understanding the Particle Network

##### Streams and Groups

##### Forces

##### Collisions

##### Conclusion

### Lesson 3

## Particle Choreography

Now that we know the basics, let’s learn the finer points of particle simulation: control. In this lesson we’ll learn how to control timing, influence direction and flow, and learn more elaborate ways of directing our particle systems.- 2 hours 22 minutesTotal Lesson Duration
- 20 VideosVideo Lectures in this Lesson
- Project FilesDownloadable Project Files

#### Guidance

##### Controlling Groups and Streams

##### Particle Guides and Influencers

##### Flowing With and Around Objects

##### Additional Particle Methods

##### Conclusion

### Lesson 4

## Particle Rendering

What do we do with all of these points we’ve worked so hard to choreograph? In this lesson, we’re going to explore the many ways to render particles, and we’ll look at tip and tricks to create some interesting effects through rendering with Mantra.- 2 hours 10 minutesTotal Lesson Duration
- 19 VideosVideo Lectures in this Lesson
- Project FilesDownloadable Project Files

#### Guidance

##### Particle Instancing

##### Sequencing Animation

##### Wedging Particles

##### Point Rendering

##### Controlling Geometry With Particles

##### Sprites

##### Conclusion

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