Game Development Reference
In-Depth Information
SpriteBatcher can render to 102, since we render 100 targets, 1 ball, and 1 cannon. Here are
the results on a few older devices, which represent the minimum requirement:
Hero (1.5):
12-27 23:51:09.400: DEBUG/FPSCounter(2169): fps: 31
12-27 23:51:10.440: DEBUG/FPSCounter(2169): fps: 31
12-27 23:51:11.470: DEBUG/FPSCounter(2169): fps: 32
12-27 23:51:12.500: DEBUG/FPSCounter(2169): fps: 32
Droid (2.1.1):
12-27 23:50:23.416: DEBUG/FPSCounter(8145): fps: 56
12-27 23:50:24.448: DEBUG/FPSCounter(8145): fps: 56
12-27 23:50:25.456: DEBUG/FPSCounter(8145): fps: 56
12-27 23:50:26.456: DEBUG/FPSCounter(8145): fps: 55
Nexus One (2.2.1):
12-27 23:46:57.162: DEBUG/FPSCounter(754): fps: 61
12-27 23:46:58.171: DEBUG/FPSCounter(754): fps: 61
12-27 23:46:59.181: DEBUG/FPSCounter(754): fps: 61
12-27 23:47:00.181: DEBUG/FPSCounter(754): fps: 60
Before we come to any conclusions, we test the old method as well by adding an FPSCounter .
Here are the results on the same older hardware:
Hero (1.5):
12-27 23:53:45.950: DEBUG/FPSCounter(2303): fps: 46
12-27 23:53:46.720: DEBUG/dalvikvm(2303): GC freed 21811 objects / 524280 bytes in 135ms
12-27 23:53:46.970: DEBUG/FPSCounter(2303): fps: 40
12-27 23:53:47.980: DEBUG/FPSCounter(2303): fps: 46
12-27 23:53:48.990: DEBUG/FPSCounter(2303): fps: 46
Droid (2.1.1):
12-28 00:03:13.004: DEBUG/FPSCounter(8277): fps: 52
12-28 00:03:14.004: DEBUG/FPSCounter(8277): fps: 52
12-28 00:03:15.027: DEBUG/FPSCounter(8277): fps: 53
12-28 00:03:16.027: DEBUG/FPSCounter(8277): fps: 53
Nexus One (2.2.1):
12-27 23:56:09.591: DEBUG/FPSCounter(873): fps: 61
12-27 23:56:10.591: DEBUG/FPSCounter(873): fps: 60
12-27 23:56:11.601: DEBUG/FPSCounter(873): fps: 61
12-27 23:56:12.601: DEBUG/FPSCounter(873): fps: 60
The Hero performs a lot worse with the new SpriteBatcher method, as compared to the old
way of using glTranslate() and similar methods. The Droid actually benefits from the new
SpriteBatcher method, and the Nexus One doesn't really care what we use. If we increased the
number of targets by another 100, we'd see that the SpriteBatcher method would also be faster
on the Nexus One.
So what's up with the Hero? The problem in BobTest was that we called too many OpenGL ES
methods, so why is it performing worse now that we're using fewer OpenGL ES method calls?
Read on.
 
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