Abstract: In order to improve the performance of graphics rendering process, awe proposed the algorithm based on unified shader core, awhich sorted objects in their material space．By the algorithm, a we first extended the definition of material at hardware abstract layer according to the features of unified shader core, athen reorganized objects based on their material, afinally added a second sorting in the material space．Our algorithm can greatly speed up the image rendering speed without changing the quality of image．Experimental results show that the new method gains much performance．