Mr. Wang's achievement was to have found a way to apply the yu-hsia technique without the colors changing. He did this by studying Tang-dynasty tri-colored pottery, for which he had an especial interest due to his admiration of its fresh, lively, brilliant colors which heralded breakthroughs in ceramics--such as Ching-hua--of later dynasties.
王修功多年來對釉色的研究、經營，基於他對絢麗、鮮明的「唐三彩」的愛好。唐三彩豐富多變的釉彩，充分反映出盛唐社會富強安樂的生活氣氛，不但突破長期以來單色釉陶的狹窄範圍，也開啟了宋明以降的青瓷、青花，到多彩陶瓷的廣闊天地。