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copied!<p>I think you have the right idea already. I would pass your container to the renderer and on each <code>onDrawFrame(GL10)</code> call, iterate through the container and perform the drawing. It might be worth synchronizing over the container as well if you are going to add objects dynamically.</p> <p>In terms of moving the objects. I assume that you will have image textures as well as an array of vertices defining a rectangle over which the texture should be drawn. You could, for each object, store the vertices of the rectangle. When 'moving' the objects I would probably recommend you simply alter the value of the vertices instead of using translate. </p> <p>Perhaps It would be helpful if you provided a bit more information about what sort of things you are trying to draw and when/how you want to add new objects.</p> <p>snippet of example code:</p> <p><strong>Bubble</strong></p> <pre><code>public class Bubble{ float[] boundingBox; int textureNumber; Bubble(int n){ textureNumber = n; boundingBox[0] = 0; boundingBox[1] = 100; boundingBox[2] = 0; boundingBox[3] = 100; boundingBox[4] = 100; boundingBox[5] = 0; boundingBox[6] = 0; boundingBox[7] = 0; boundingBox[8] = 0; boundingBox[9] = 100; boundingBox[10] = 0; boundingBox[11] = 0; } </code></pre> <p><strong>Renderer</strong></p> <pre><code>ArrayList<Bubble> bubbles; FloatBuffer bubbleVertexBuffer; onSurfaceCreated(..){ ByteBuffer bb = ByteBuffer.allocateDirect(12*4); bb.order(ByteOrder.nativeOrder()); bubbleVertexBuffer = bb.asFloatBuffer(); } onDrawFrame(GL10 gl){ gl.glEnableClientState(GL10.GL_VERTEX_ARRAY); gl.glClear(GL10.GL_COLOR_BUFFER_BIT | GL10.GL_DEPTH_BUFFER_BIT); gl.glColor4f(0.0f, 1.0f, 0.0f,0.0f); int size = bubbles.size(); for(int i = 0; i < size; i++){ Bubble b = bubbles.get(i); bubbleVertexBuffer.put(b.boundingBox); bubbleVertexBuffer.position(0); gl.glVertexPointer(3, GL10.GL_FLOAT, 0, bubbleVertexBuffer); gl.glDrawArrays(GL10.GL_TRIANGLE_STRIP, 0,4); } } gl.glDisableClientState(GL10.GL_VERTEX_ARRAY); } </code></pre>

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