ine 5341 

Programa

OpenGL

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Bibliografia

Plano de Ensino

Este tutorial é baseado principalmente em uma tradução do OpenGL Tutorial de Jeff Molofee & Neon Helium e está constantemente sendo  extendido com novos exemplos e material teórico que fundamenta as técnicas descritas. Algumas partes ainda não foram completamente traduzidas e pedimos desculpas ao leitor por apresentar texto em inglês. Na medida do possível todas as técnicas e exemplos descritos aqui foram testados e avaliados. Comentários sobre o tutorial são bem-vindos.

Conteúdo

10.1. Lines, Antialiasing, Timing, Ortho View And Simple Sounds

10.2. Using Direct Input With OpenGL

10.3. Tokens, Extensions, Scissor Testing And TGA Loading

10.4. Picking, Alpha Blending, Alpha Testing, Sorting
 
 
 

10.1. Lines, Antialiasing, Timing, Ortho View And Simple Sounds This is my first large tutorial. In this tutorial you will learn about: Lines, Anti-Aliasing, Orthographic Projection, Timing, Basic Sound Effects, and Simple Game Logic. Hopefully there's enough in this tutorial to keep everyone happy :) I spent 2 days coding this tutorial, and about 2 weeks writing this HTML file. If you've ever played Amidar, the game you write in this tutorial may bring back memories. You have to fill in a grid while avoiding nasty enemies. A special item appears from time to time to help make life easier. Learn lots and have fun doing it!

10.2. Using Direct Input With OpenGL This tutorial code was written by Justin Eslinger and is based on lesson 10. Instead of focusing on OpenGL this tutorial will teach you how to use DirectInput in your OpenGL programs. I have had many requests for such a tutorial, so here it is. The code in lesson 10 will be modified to allow you to look around with the mouse and move with the arrow keys. Something you should know if you plan to write that killer 3D engine :) I hope you appreciate Justin's work. He spent alot of time making the tutorial unique (reading textures from the data file, etc), and I spent alot of time tweaking things, and making the HTML look pretty. If you enjoy this tutorial let him know!

10.3. Tokens, Extensions, Scissor Testing And TGA Loading In this tutorial I will teach you how to read and parse what OpenGL extensions are supported by your video card. I will also show you how to use scissor testing to create a cool scrolling window effect. And most importantly I will show you how to load and use TGA (targa) image files as textures in projects of your own. TGA files support the alpha channel, allowing you to create some great blending effects, and they are easy to create and work with. Not only that, by using TGA files, we no longer depend on the glAUX library. Something I'm sure alot of you guys will appreciate!

10.4. Picking, Alpha Blending, Alpha Testing, Sorting This tutorial attempts to answer a few of the questions I'm asked on a daily basis. You wanted to know how to tell if you have clicked on an object with your mouse (picking). You wanted to know how to draw objects to the screen without a specific color showing up (alpha blending or alpha testing). You wanted to know how to sort objects so they appear properly when blending in enabled (sorting). This tutorial is a complete game and is considered advanced. Make sure you have a good undestanding of OpenGL before you jump into the code.