public void onDrawFrame(GL10 gl) {
// ...
// Clear the screen to black
gl.glClear(GL10.GL_COLOR_BUFFER_BIT | GL10.GL_DEPTH_BUFFER_BIT);
// Position model so we can see it
gl.glMatrixMode(GL10.GL_MODELVIEW);
gl.glLoadIdentity();
gl.glTranslatef(0, 0, -3.0f);
// Other drawing commands go here...
// Set rotation angle based on the time
long elapsed = System.currentTimeMillis() - startTime;
gl.glRotatef(elapsed * (30f / 1000f), 0, 1, 0);
gl.glRotatef(elapsed * (15f / 1000f), 1, 0, 0);
// Draw the model
cube.draw(gl);
// Keep track of number of frames drawn
numFrames++;
long fpsElapsed = System.currentTimeMillis() - fpsStartTime;
if (fpsElapsed > 5 * 1000) { // every 5 seconds
float fps = (numFrames * 1000.0F) / fpsElapsed;
Log.d(
TAG,
"Frames per second: " + fps + " (" + numFrames + " frames in " + fpsElapsed + " ms)");
fpsStartTime = System.currentTimeMillis();
numFrames = 0;
}
}
