URL：https://www.researchgate.net/publication/273487711/figure/fig5/AS:668998979031051@1536513194924/Demonstration-of-two-levels-of-detail-of-a-4-8-triangle-mesh-in-a-ROAM-20-algorithm-A_Q640.jpg
掲載元：https://www.researchgate.net/figure/Demonstration-of-two-levels-of-detail-of-a-4-8-triangle-mesh-in-a-ROAM-20-algorithm-A_fig5_273487711
