光圈和景深

occlusion:: eyIuLi9hc3NldHMvaW1hZ2VfMTc0ODk5NjM3NTg1N18wLnBuZyI6eyJjb25maWciOnt9LCJlbGVtZW50cyI6W3sibGVmdCI6NTE4Ljc3MDgzNTg3NjQ2NDgsInRvcCI6MzEuOTI5NTkwNjc3NTgxODksIndpZHRoIjo5Ny41NDE2NzE3NTI5Mjk2OSwiaGVpZ2h0IjozNy44NjE0ODkwMjYxODg2NiwiYW5nbGUiOjAsImNJZCI6MX1dfX0=