We are using away3d for a texture intensive project and we notice that
context3D has a texture limitation of 128 Megabytes per the following link.
http://help.adobe.com/en_US/FlashPlatform/reference/actionscript/3/flash/display3D/Context3D.html
Since this is a low level limitation, I guess we will be stuck with this limitation even if we switch to an implementation based on low level stage3d library.
-lw02