In our previous chapter, we created a class for our Triangle object; however, if you run your game, it will still show a blank screen since we have not used our render class to display it. We need to create an object for our newly defined class, and then using our GL reference, we will draw/render it on our screen. Open up your MyGLRenderer.java file and let's start by declaring a variable of our triangle. We won't be altering any of our code that we wrote in onSurfaceCreated() or onSurfaceChanged() methods.
In order to draw our object on screen, we will simply follow these steps:
- Define a variable of our
Triangleclass. - Assign a reference to it in our constructor.
- Using gl, access the
draw()method in ourTriangleto display it on screen.
Let's take a look at how we can do that; just type in the code marked in bold in your MyGLRenderer.java file:
//The import statements are same as our previous chapter public class MyGLRenderer implements GLSurfaceView.Renderer...