dear..... u{xjFx-
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did you try "Aspheric Surface 2", this surface allows you to control the aperture size in both X and Y direction...... dHc38zp
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Sorry, I guess my Chinese is poor so mistaking your 高度 as the x and y position so I guess when you said "矢高,即它的纵向长度" is one of the X or Y dimension .... (I hope)