根据灯光方向来设定亮部与暗部。

Introduced lights and darks according to the light direction.

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大致画好亮部和暗部之后，我开始考虑作品的颜色。

With the light and dark areas in place, I then started to consider the colour.

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在考虑色域时，我们常会想到黑白照片和亮部及阴影的相互作用。

When we think of the tonal range, we usually think of black and white images and how the highlights and shadows work together.

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