Book Image

Learn Blender Simulations the Right Way

By : Stephen Pearson
2 (2)
Book Image

Learn Blender Simulations the Right Way

2 (2)
By: Stephen Pearson

Overview of this book

Blender is a free, open source 3D software that allows you to create stunning visual graphics, animation, VFX, and much more! This book is an in-depth guide to creating realistic and eye-catching simulations, understanding the various settings and options around their creation, and learning how to troubleshoot solutions to your own Blender problems. In addition, this book can also be used to simulate the behavior of certain physics effects, such as fire, fluid, soft bodies, and rigid bodies. You’ll learn how to use Mantaflow, an open source framework within Blender software, to create fire, smoke, and fluid simulations. As you progress, you’ll understand how to easily produce satisfying rigid and soft body simulations, along with cloth simulations. Finally, you’ll use Dynamic Paint, Blender’s modifier, and the physics system to create eye-catching animations. By the end of this Blender book, you’ll have created a number of animations on your own, such as a campfire, waterfalls, and explosions. You’ll also have gained a deeper understanding of all the simulation options in Blender, which you can use to create portfolio-ready animations.
Table of Contents (21 chapters)
1
Part 1: Using Mantaflow for Fire, Smoke, and Fluids
7
Part 2: Simulating Physics with Soft Bodies and Cloth
12
Part 3: Diving into Rigid Bodies
15
Part 4: Understanding Dynamic Paint in Blender

Rigid Body World

Rigid Body World is located in the Scene panel; it is where you can set which collection will be simulated, the speed, and the steps per frame. This is also where you bake in the simulation:

Figure 10.18 – Rigid Body World settings

Figure 10.18 – Rigid Body World settings

When you first add a rigid body to the scene, the rigid body world is created. Without this, nothing would be simulated; you always need the rigid body world. You can disable this world by unchecking it or by clicking Remove Rigid Body World. Now, let’s talk about the settings in this panel:

  • With the collection called RigidBodyWorld selected, every rigid body in every collection can be simulated. However, if you choose a specific collection, then only the objects in that particular collection will be simulated.
  • Below that, there is a Constraints collection. In Figure 10.18, it’s currently empty. This is because it’s not created until you create a rigid body constraint...