1 lesson one introduction

Always be sure and in control. Speed comes from certainty. The more you type things correctly, no matter how slow it has to be, the more certain you will be, and the faster you will become a proficient typist. Increase speed only when you feel sure enough to do so.

1 lesson one introduction

Most recent devices should also support OpenGL ES 2 these days, so all you need to do is enable developer mode and hook the phone up to your machine.

Assumptions The reader should be familiar with Android and Java on a basic level. The Android Tutorials are a good place to start. You can copy the code on a segment by segment basis by creating your own project, or you can download the completed project at the end of the lesson.

Once you have the tools installed, go ahead and create a new Android project in Eclipse. It also adds a lot of features which make it easier to use OpenGL, including but not limited to: It provides a dedicated render thread for OpenGL so that the main thread is not stalled.

It supports continuous or on-demand rendering. To do this, we get an ActivityManager instance which lets us interact with the global system state.

We can then use this to get the device configuration info, which will tell us if the device supports OpenGL ES 2.

1 lesson one introduction

We can also support OpenGL Es 1. We add in the calls here to round out our activity. In the activity we passed in a custom GLSurfaceView. Renderer to the GLSurfaceView, which will be defined here.


The renderer has three important methods which will be automatically called by the system whenever events happen: It will also be called if we lose our surface context and it is later recreated by the system.

It is also called after the surface has been created. You may have noticed that the GL10 instance passed in is referred to as glUnused. These numbers can represent positions, colors, or anything else we need them to. Instead of defining points via a bunch of method calls, we define an array instead.

This represents one point of the triangle. Java and the native system might not store their bytes in the same order, so we use a special set of buffer classes and create a ByteBuffer large enough to hold our data, and tell it to store its data using the native byte order.Learn English Online - Basic Introductions - Unit 1 - Lesson 1 - am, is, are, to be, the questions what and who with corrections for your written English.

This should give an overview of the lesson plan, including vocabulary and any special materials needed for the lesson plan. We recommend keeping it to paragraphs.

You've reached the end of the assessment.

Cancel Save. Alexander's world conquest resulted in a Hellenization of the ancient world. But as Greek culture and language changed the world, the world changed Greek language.

1 lesson one introduction

Each of the first three lessons should not be done more than twice a day each, preferably morning and evening. Nor should they be attempted for more than a minute or so, unless that entails a sense of hurry.

This is the first tutorial on using OpenGL ES 2 on Android. In this lesson, we’re going to go over the code step-by-step, and look at how to create an OpenGL ES 2 context and draw to the screen. Lesson 1: Introduction to Planning Emergencies and disasters, both natural and man–made, can happen at any time, often without warning.

DHS strives to provide its workforce and the nation with tools and training to prevent, protect from, mitigate, respond to, and recover from potential emergencies and disasters.

English Lesson 1 - Basic Introductions - Learn English Online - Free Beginners Course