@Override
    public void glBlitFramebufferEXT(int srcX0, int srcY0, int srcX1, int srcY1, int dstX0, int dstY0, int dstX1, int dstY1, int mask, int filter) {
        JmeIosGLES.glBlitFramebuffer(srcX0, srcY0, srcX1, srcY1, dstX0, dstY0, dstX1, dstY1, mask, filter);
    }
Implements OpenGL ES 2.0 and 3.0 for iOS. 

@author Kirill Vainer, Jesus Oliver
jme3-ios/src/main/java/com/jme3/renderer/ios/IosGL.java