vertexData.push_back( Vertex( index, Vector2(curSize,curSize), Vector2(1.f,1.f) ) );
vertexData.push_back( Vertex( index, Vector2(curSize,0.f), Vector2(1.f,0.f) ) );
vertexData.push_back( Vertex( index, Vector2(curSize,curSize), Vector2(1.f,1.f) ) );
vertexData.push_back( Vertex( index, Vector2(curSize,0.f), Vector2(1.f,0.f) ) );