Book Image

Blender Cycles: Lighting and Rendering Cookbook - Second Edition

Book Image

Blender Cycles: Lighting and Rendering Cookbook - Second Edition

Overview of this book

Blender provides a broad spectrum of modeling, texturing, lighting, animation and video post-processing functionality in one package. It provides cross-platform interoperability, extensibility and a tightly integrated workflow. Blender is one of the most popular Open Source 3D graphics applications in the world. Modern GPUs (Graphics Processing Unit) have some limitations for rendering complex scenes. This is mainly because of limited memory, and interactivity issues when the same graphics card is also used for displaying and rendering frames. This is where Cycles rendering engine comes into play. Cycles is bundled as an add-on with Blender. Some of the features of Cycles is its quality, speed and having integrated industry standard libraries. This book will show you how to carry out your first steps in Cycles - a brand new rendering engine for Blender. In a gradual and logical way, you will learn how to create complex shaders and lighting setups to face any kind of situation that you may find in Computer Graphics. This book provides information on how to setup your first application in Cycles. You will start by adding lights, materials, and textures to your scene. When it's time for the final render, you will see how to setup Cycles in the best way. You will learn about a wide variety of materials, lighting, techniques, tips, and tricks to get the best out of Cycles. Further on in the book, you will get to know about animation and still shots, and learn how to create advanced materials for realistic rendering, as well cartoon style shaders. This cookbook contains a wide range of different scenes, proposed in a structured and progressive order. During this journey, you will get involved in the concepts behind every step you take in order to really master what you learn.
Table of Contents (18 chapters)
Blender Cycles: Lighting and Rendering Cookbook
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
Introduction
Index

Creating a custom and more versatile glass shader


Cycles gives us a great versatility and even if creating transparent materials using the Glass BSDF is fast and effective, this is not the only way. In this recipe we will learn how to create a shader setup that will give us a greater control over the look of the material.

Getting ready

Now we need to change our scene a bit to get its final look. We will just need to change the layers we use. Deselect layers 3 and 5 and select layers 2 and 4. So right now we will be working with layers 1, 2 and 4 as shown in the following figure:

This means that our source light will not be a mesh emitter anymore but a sun lamp, as now we are using our custom caustics. We also added some more objects to our scene in order to learn different glass materials.

Right now we want to create a material, which is quite similar to the previous one, but will allow us more control over its look compared to the default glass shader. Now in the scene there is a new glass...