Particle Systems in Godot - Part 2: 3D Particle Systems

Hello Godotneers! In this second part of our particle systems video series we are going to explore 3D particle systems. We're going to learn the basics of how particle systems work in 3D and how we can build effects like fire and rain. We'll have a look at particle attractors, how to make particles collide with the environment and how to use sub-emitters to create more complex effects like rain splashes. There is also a project for you to follow along, so fire up Godot and have some fun exploring particle systems in 3D!

Table of contents
===============

00:00 Introduction
01:09 Basics of 3D particle systems
02:55 Draw passes
03:37 3D material setup
05:00 Particle behaviour setup
08:40 Color ramps setup
11:54 Billboarding
14:57 Keeping particles in local space
16:09 Particle attractors
17:48 Basic attractor setup
19:19 Attractor movement script
26:50 Rain setup
28:39 Controlling visibility with AABBs
29:58 3D particle trails
30:18 Particle trail meshes
31:14 Material setup for trail meshes
34:36 Rain setup continued
38:18 Rain in large worlds
39:08 Performance considerations
40:56 Particle follow script
42:50 Particle collisions
43:52 Basic collision setup
44:23 3D particle colliders
44:58 Box collider
45:27 Collision and visibility AABB
46:42 Collision tunneling
50:08 Collision height fields
52:04 Collision signed distance fields
55:58 Troubleshooting collision issues
57:27 Particle collider sizes
58:40 Blocking rain from buildings
1:00:41 Particle subemitters
1:01:00 Setting up a ripple effect
1:04:39 Subemitter setup
1:06:16 Subemitter visibility
1:07:32 Subemitter collision issues
1:10:41 Conclusion

Useful links
==========

The example project that we use in this video - https://github.com/godotneers/particl...
Godot documentation for 3D particle systems - https://docs.godotengine.org/en/stabl...
Velocity calculator for gravity - https://www.desmos.com/calculator/ffc...

If you'd like, you can support me - https://ko-fi.com/derkork