As of this commit all "pages" will be 2-sided. There's a new class CurlPage, using which you can assign a separate texture on both sides, one for front side only, or same texture can be shared on both sides. CurlPage contains also color values for blending which allows you to e.g share texture on both sides but do alpha blending only on back side of the page, leaving you with exactly same effect what earlier version of this example application did. This time with the difference there's some more freedom included. Project for implementing 'page curl' effect on Android + OpenGL ES 1.0 (possibly 1.1/2.0 too if there's clear advantage in using them).