我经常会稍稍羽化我的选区，以避免粗糙的转换效果，这里，我选择了0.5的像素值。

I always feather my selections slightly to avoid harsh transitions, here I choose 0.5px as a value.

youdao

效果选项包括：阴影、发光、羽化、倾斜，也可以直接使用格式选项卡。

Effects, such as shadow, glow, soft edges, and bevel, can also be accessed from the Format TAB.

youdao

船的另一边我把羽化范围设定在40%到60%之间，用曲线来营造一种平衡的光照效果。(图38)。

I used the feather tie set between 40% and 60% on the opposite side of the boat and curves to create the bounce lights (Fig. 38).

youdao