Vector2 originalCenter( mPageSize.width*1.5f, 0.5f*mPageSize.height );
mTurnEffect[mIndex].SetUniform("uOriginalCenter", originalCenter );
mTurnEffect[mIndex].SetUniform("uCurrentCenter", Vector2( mPageSize.width*0.5f, mPageSize.height*0.5f ) );
Vector2 originalCenter( mPageSize.width*1.5f, 0.5f*mPageSize.height );
mTurnEffect[mIndex].SetUniform("uOriginalCenter", originalCenter );
mTurnEffect[mIndex].SetUniform("uCurrentCenter", Vector2( mPageSize.width*0.5f, mPageSize.height*0.5f ) );