OpenGL ES specs on the iPhone
Besides Apple trying to keep anything and everything under wrap there are things I wish they would just publish loud and open. I had to look about an hour today to find the maximum texture resolution and the general graphic specs for the iPhone implementation of OpenGL ES - since I am not developing but producing content for a developer I have no access to the specs but needed them badly. I eventually found some light info on geeks3d.com which refers to an pretty extensive article called "OpenGL and Mobile Devices: Round 2 - OpenGL ES for the iPhone and iPod Touch" by Richard S. Wright Jr.
that is available from Dr. DobbsPortal:
There are a few limitations you should know from the start:
* There is no stencil or accumulation buffer.
* There are only two texture units.
* The maximum texture size is 1024×1024 (use power of two only).
* The maximum space for textures and surfaces is 24MB.
* Only 2D textures are supported.
* There is no software rendering fallback.