Blender 2.5 Materials and Textures Cookbook

Blender 2.5 Materials and Textures Cookbook

Overview of this book

Blender 2.5 is one of the most usable 3D suites available. Its material and texture functions offer spectacular surface creation possibilities. It can take you hours just to create basic textures and materials in Blender and when you think of creating complex materials and textures you are petrified. Imagine how you will feel when you overcome these obstacles. This book wastes no time on boring theory and bombards you with examples of ready-created materials and textures from the start, with clear instructions on how they were created, and what you can learn from them for making your own. It covers all core Blender functions you will ever need to easily create perfect simulation of objects from the simplest to the most complex ones. The book begins with recipes that show you how to create natural surface materials, including a variety of pebbles, rocks, wood, and water, as well as man-made metals, complete with rust. By utilizing some of the easiest-to-use animation tools available, you will be able to produce accurate movement in mesh objects. Familiarize yourself with a plethora of tools that will help you to effectively organize your textures and materials. You will learn how to emulate the reflective properties of natural materials and how to simulate materials such as rusted iron, which is difficult to make believable. Transparency and reflection are both tricky natural surface properties to simulate but these recipes will make it easy. Explore ways to speed up animations by using special painting techniques to significantly lower render times. By the end of the book, you will be able to simulate some of the most difficult effects to recreate in any 3D suite, such as smoke, fire, and explosions.

Blender 2.5 Materials and Textures Cookbook

Credits

About the Author

About the Reviewers

www.PacktPub.com

Preface

Free Chapter

Creating Natural Materials in Blender

Introduction

Creating a realistic pebble material using procedural textures

Creating a gray limestone pebble

Creating the quartz pebble material

Creating an opalescent quartz material

Creating a mask to represent the quartz veins

Combining two materials, to make a third, using Nodes

Creating a large rock material using procedural, and node textures

Creating a sea rock material

Creating a texture node to simulate seaweed at the base of a rock

Creating a large rock face using photo reference

Creating Man-made Materials

Introduction

Creating a slate roof node material that repeats but with ultimate variety

Using a tileable texture to add complexity to a surface

Warping a texture to disguise seams in a repeated texture

Adding weathering by copying and reusing textures

Combining materials using nodes

Creating metals

Using specular maps to add age and variety to man-made surface materials

Adding oxidization weathering to our copper material

Adding grime and artistic interest to our copper material

Creating a path or road material that never repeats

Repeating a tiled texture to duplicated objects

Deforming materials and textures in Blender

Creating Animated Materials

Introduction

How to move textures and create animation without moving a mesh

Manipulating the F-Curves of texture movement

Using an Empty as a dummy object to control texture movement over time

A barber pole with no moving parts

How to alter the color of materials and textures over time

Creating a red hot iron bar

How to animate transparency in a texture

Creating a burning sheet of paper

How to change textures during an animation

How to texture with movies creating a TV screen

Managing Blender Materials

Introduction

Setting a default scene for materials creation

Additional settings for default scene

Creating an ideal Blender interface for material creation

Creating an ideal texture animation setup

Naming materials and textures

Appending materials

Linking materials

Making blendfiles stand alone

Creating More Difficult Man-made Materials

Introduction

Creating rust on iron-based metals

Creating a mesh object to provide good reflective surfaces

Using environment map textures to simulate reflection

Varying environment map reflections to simulate corrosion or wear

Using raytrace reflections to simulate polished metals

Varying raytrace reflections to simulate dirt and grime

Creating More Difficult Natural Materials

Introduction

Creating realistic large-scale water in Blender 2.5

Setting up an ocean vista environment

Creating a wave surface using textures

Creating an ocean surface material

Creating wake around objects in water

Creating a non-repeating leaf material

Creating image and bump maps, with alpha channels

Using images as the basis for a leaf material

Using alpha to create a leaf shape on a simple mesh

Adding a non-repeating bump to the leaf material

Adding color complexity to the leaf material

UV Mapping and Sub Surface Scattering

Introduction

Creating a face map from photographs

Unwrapping a face mesh to produce a UV map

Editing a UV map to optimize the image space

Creating multiple UV maps for a single object

Combining UV maps to create an enveloping UV

Using a paint package to merge UV maps

Extracting color, bump, and specularity maps from photographs

Applying UVs to create an accurate skin material

Skin shading using SSS and AO

Painting and Modifying Image Textures in Blender

Introduction

Post processing rendered images from within Blender

Adding more than one material to a surface

Adding dirt onto a model

Creating an aged photo with simple Blender materials

Special Effects Materials

Introduction

Creating explosive smoke in Blender

Igniting a flame and making things burn in Blender

Creating loopable fire and smoke sequences

Adding complex FX without the render overhead

Index

Customer Reviews

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Adding a non-repeating bump to the leaf material

So far, we have created a leaf that looks quite good but we could hardly use this repeated a few hundred times to create an ivy covering of a tree trunk for instance. It would look very false because each leaf would be exactly the same as each other. It is possible in Blender to instance a mesh object many times without increasing the memory overhead of a render. However, as you can understand, we need to find some way to add variety to the each instanced leaf.

The scanned image of the ivy leaves shown at the beginning of this section illustrates the variety from a single cutting. You may be able to see that apart from the shape variety there is also some color differences and some leaves have been damaged by insect action.

How to do it….

Apart from the outline shape of the leaves, it is possible to simulate the other differences using textures within Blender. Use the ivy-leaf-04.blend saved at the end of the last recipe or download and unzip...

Blender 2.5 Materials and Textures Cookbook

Blender 2.5 Materials and Textures Cookbook

Overview of this book

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Blender 2.5 Materials and Textures Cookbook

Adding a non-repeating bump to the leaf material

How to do it….