Textures In Opengl Es 2.0 For Android

I'm new to OpenGL and I'm teaching myself by making a 2D game for Android with ES 2.0. I am starting off by creating a 'Sprite' class that creates a plane and renders a texture to

Solution 1:

A few observations/questions:

1. I don't know how you changed the fragment shader, but the version that is currently posted needs a precision specifier. Just add:

   precision mediump float;
   

   to the top, and it should work. Now regarding the black screen here are some questions:

2. When you change the glClearColor to something not black and comment out all the draw commands, does it still look black? If so, then you have a bigger problem than textures.

3. Second, if you ignore the texture output and try drawing each sprite as just a flat colored rectangle with no texture data, what do you get? You should be able to see some colored rectangle on the screen.

4. Finally, you need to bind the texture before you call glDrawElements. (Though this shouldn't matter in this example since you haven't changed the state yet.)