In Flash Professional Help / Publishing AIR for Android applications (http://helpx.adobe.com/flash/using/publishing-air-android-applications.html) I found the following:
Allows you to specify which method the AIR runtime uses to render graphic content. The options include:
Auto - automatically detect and use the fastest rendering method available on the host device.
CPU - Use the CPU.
GPU - Use the GPU. If no GPU is available, the CPU is used.
Direct - Render using Stage3D. This is the fastest available rendering method.
If the Auto mode automatically selects the fastest rendering method, what is the point of the 3 other options?
My application has some minor 2D animations, but very smooth drag-and-drop performance is important. What rendering mode would you recommend?
Last I heard, "auto" was never implemented. Auto=CPU mode.
The Direct option seems to be the best.
Only for 3d. MovieClips anyway not so fast as 3D