Book Image

Blender 3D 2.49 Architecture, Buildings, and Scenery

By : Allan Brito
Book Image

Blender 3D 2.49 Architecture, Buildings, and Scenery

By: Allan Brito

Overview of this book

<p>Every type of construction&mdash;such as building a house, a movie set, or a virtual set&mdash;needs a project. These projects are made of a lot of documents and technical drawings, which help in the construction of those buildings. These technical drawings and documents are just fine, but when you need to make a presentation of these projects for people who can't read technical drawings, things can get a little difficult.</p> <p>To make presentations for people who can't read technical drawings, we use tools like Blender. With Blender we can create, texture, and generate photo-real images of a project. These images are helpful to architects or companies to explain their projects in a better way. This book will show you how to generate real-looking architectural models quickly using Blender. You can also create natural scenery, landscapes, plants, various weather conditions, environmental factors, building materials such as wood, metal, brick, and more using Blender.</p> <p>As you walk through the chapters you will see that Blender is a tool, designed to give you high productivity and fast access to tools and menus helping you to create 3D models quickly for 3D visualization. You will learn how to add people to different scenes as well as other objects to an already existing photograph or a video making it easier to increase its realism.</p> <p>The process begins by learning how Blender user interface works then moves on and starts to deal with 3D modeling. In the 3D modeling chapters you will learn how to work with polygon-based modeling for architecture, creating walls and other architectural elements. But, a project is not only made of large scale models and this is the reason why you also learn to create 3D furniture.</p> <p>In the section about advanced lighting for architecture, you learn how to work with YafaRay to use global illumination techniques such as Photon Mapping and Path Tracing, and create photo-real renderings.</p> <p>In the last section of the book, dedicated to animation, we will create linear animation based on keyframes and interactive 3D applications.</p>
Table of Contents (21 chapters)
Blender 3D 2.49 Architecture, Buildings, and Scenery
Credits
About the Author
About the Reviewers
Preface
Index

Radiosity


With Radiosity, we can generate good light for animations and games, because most of the illumination is processed just once, and stored as some kind of paint on the surfaces. Where can we use Radiosity? In Blender, this global illumination is primarily used for interactive presentations created with the Blender Game Engine.

Another interesting thing about Radiosity is that we don't use lamps to generate light for our environments. With this system, we use an object named "emitter" to generate light rays.

The way to create these so-called emitters is to change the Emit properties in the Shaders panel. For instance, if we want to create a plane, that generates light energy for Radiosity, we must apply a material to the plane and then change the color of the material to match the light color, and then increase the Emit property. The Emit option will work just like the Energy option for lamps, with high values generating a brighter illumination:

Let's see an example with a simple room...