In the Renaissance period the feature became of the greatest importance and its variety almost as great as in the Romanesque and Gothic styles. The flat pilaster, which was employed extensively in this period, called for a planar rendition of the capital, executed in high relief. This affected the designs of capitals. A traditional 15th-century variant of the Composite capital turns the volutes inwards above stiffened leaf carving. In new Renaissance combinations in capital designs most of the ornament can be traced to Classical Roman sources.