Textures - Introduction

Texture Size, Color Space, and Compression

Texture Atlases

Texture Filtering

Mipmapping

UV Unwrap, Visual Impact, and Texture Channel Packing

Alpha Channels and Normal Map Best Practices

Editing Texture Settings

Demo: Texture Atlases

This project will highlight the different implementation considerations and optimizations that take advantage of a Texture’s flexibility. When given the correct settings and applied correctly over their many use cases, Textures play a major role in achieving your desired visual effects. 

Textures

Course Introduction

The Optimization Process

Profiling Tools

Geometry - Introduction 

Triangle and Polygon Usage

Level of Detail

Additional Geometry Best Practices

Demo: Level of Detail

Shaders and Materials - Overview

Optimizing Shaders for Mobile Platforms

Transparencies

Additional Material and Shader Best Practices

Demo: Draw Calls and SRP Batcher

Lighting - Overview

Light Modes and Types

Lighting for Static Objects

Light Probes

Shadows

Demo: Baked Lighting

Conclusion/Next Steps

Welcome to 3D Art Optimization for Mobile Applications! In this introductory project, we will review the course's main learning objectives, discuss the practice of optimization, and identify the optimization tools available at your disposal.

Introduction/Optimization and Profiling

This project will highlight optimizations for 3D models that can make a game more efficient while maintaining aesthetic intent, improving the performance and experience on mobile devices. 

Geometry

Shaders and Materials play a crucial role in determining how target hardware will process and render your 3D objects. In this project, you will explore best practices that will keep the shaders lightweight and fast when running on phones with limited resources.

Shaders and Materials

Lighting is one of the most important aspects of real-time 3D visuals. It can set the mood, guide interactions, and identify goals and objectives. In this project, you will learn about and compare the differences between the available lights and light modes that you can use in your 3D mobile application.

Lighting

ARMUnityMobileOptimization.zip

In this intermediate course, participants will learn how to produce performance-optimized 3D assets and scenes for mobile applications. Topics will cover tips on optimizing Geometry, Textures, Materials, Shaders, and Lighting. This course was created with technical artists and content creators in mind.

Arm & Unity Presents: 3D Art Optimization for Mobile Applications

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What is Mipmapping?

Conclusion

In this tutorial, we discuss why mipmaps provide an optimized solution for displaying detailed Textures for mobile devices. 

Mipmaps are copies of a Texture that are saved at decreasingly lower resolutions. Think of mipmapping as being the equivalent of Level of Detail (LOD) but for Textures.

When a Texture with mipmaps is rendered, an appropriate level is selected for sampling based on how much Texture-space a fragment of pixels occupies in screen space. When an object is farther from the camera, a lower-resolution Texture is applied. A higher-resolution Texture is applied when an object is closer to the camera.

Mipmapping improves both performance and quality of mobile applications because the GPU doesn’t need to render full-resolution Textures on objects that are far from the camera.

Mipmapping also reduces Texture aliasing, which improves the final image quality. Texture aliasing causes a flickering effect on areas that are farther from the camera, as shown in the image below.

Unity automatically creates mipmaps, as they’re needed when importing Textures, and then rescales Textures that are not power of two. More information about importing Textures  can be found in the Unity documentation.

Mipmaps are an essential tool for runtime Texture optimization for 3D objects that vary in distance from the camera. In the next tutorial, we’ll cover more advanced techniques, like UV unwrapping, optimizing for visual impact, and Texture channel packing. 

Mipmapping

1. What is Mipmapping?

2. Conclusion

Complete this tutorial