Because of the working environment, the ks8 version has not been used all the time. This job also uses vray for rendering. Just before the office computer installed ks7 and it was relatively free in the past two days, it was rendered casually. I didn't think the effect of 7 was still very good. I used my own material ball and my own ambient light. When I used 6, I used hdr light studio externally. The effect was good but very troublesome.