Section 3 Introduction

Welcome to Section 3! Here Michael Introduces what you will be covering in this section.

(Unique Video Reference: 0_TX_UAC)

What Is A Texture?

• Critical part of setting up a material.
• Blender and Unity accept textures to define different parameters of a material.
• A Texture is a map of the qualities of a surface.
• Typically these maps are image files.

(Unique Video Reference: 1_TX_UAP)

Image Fundamentals

• Images are information- a series of 1s and 0s
• Image dimensions should be a power of two
• Imagine a single pixel image
• This image is 2^1 on both sides
• 1 bit pixel- either black or white

(Unique Video Reference: 2_TX_UAP )

A Simple Texture

• Many tools at our disposal, including pen and paper! (plus camera). GIMP/Photoshop/Paint!
• Ideally the image’s resolution should be a power of 2 on both sides.
• We’ll have a look at paint and discuss preview.

(Unique Video Reference: 3_TX_UAP)

UV Mapping

• UV Mapping, is mapping the 2D Co-ordinates of an image onto a 3D Surface.
• UV Unwrapping is getting the model ready.
• There is no right or wrong, depends on the application and use.

(Unique Video Reference: 4_TX_UAP)

Normals

• We will look at what a normal is
• How we can see them in Blender
• Turning on backface culling
• Look at flat and smooth shading.

(Unique Video Reference: 5_TX_UAC)

Normal Maps

• A Normal Map is a type of Bump Map.
• We will generate a normal maps from one of our existing black and white images in Unity.
• Each Texel of a normal map represents a deviation from the face normal.

(Unique Video Reference: 6_TX_UAP)

Height Maps

• Height maps: grayscale images, with black being the lowest point and white the highest.
• They can fake the occlusion of parts of geometry.
• In Unity they require a texture to have been used before hand, otherwise no effect.

(Unique Video Reference: 7_TX_UAP)

Naming Conventions

• Discuss why naming is important.
• CamelCaseIsReallyUseful
• Use_Underscores_Rather_Than_Spaces
• Stick to your convention
• Be flexible.

(Unique Video Reference: 8_TX_UAP)

Unwrapping A Model

• Build a Simple model
• Unwrap it, placing manual seams.
• UV Unwrapping is an art itself! There is no right or wrong way.
• There are ways that will distort or look worse.

(Unique Video Reference: 9_TX_UAP)

Mapping A Single Texture

• Map a texture to our model.
• Turn on tiling in Blender for a better appreciation of what is happening.
• Save our files in the Unity assets folder.

(Unique Video Reference: 10_TX_UAP)

Mapping Multiple Textures

• Map more than one image to a single model.
• We’ll paint our own texture for this in Blender
• Show you how to export a UV Map to paint in an external package.

(Unique Video Reference: 11_TX_UAP)

Presenting Your Model

In This Video…

• Models look odd out of context
• Build environment, either in Blender or Unity
• Present you model in a better light.

(Unique Video Reference: 12_TX_UAP )

Section 3 Wrap Up

Michael and Ben Wrap up Section 3 of the 3D Model Mastery