Light Logic: How Light Describes Form · 光影逻辑：光如何描述形态
| English | 中文 | Pinyin · 拼音 |
|---|---|---|
| highlight/ˈhaɪlaɪt/ | 高光 | gāo guāng |
| halftone/ˈhɑːftəʊn/ | 中间调 | zhōng jiān diào |
| core shadow/kɔː ˈʃædəʊ/ | 明暗交界线 | míng àn jiāo jiè xiàn |
| reflected light/rɪˈflektɪd laɪt/ | 反光 | fǎn guāng |
| cast shadow/kæst ˈʃædəʊ/ | 投影 | tóu yǐng |
One light, six zones
- One light source creates a predictable pattern — learn it and any form becomes drawable.
- The six zones: highlight 高光, light, halftone 中间调, core shadow 明暗交界线, reflected light 反光, cast shadow 投影.
- Every value in your drawing must be explainable by the light's direction.
一个光源，六个区域
- 一个光源产生一套可预测的规律——学会它，任何形体都能画。
- 六个区域：高光(highlight)、亮部、中间调(halftone)、明暗交界线(core shadow)、反光(reflected light)、投影(cast shadow)。
- 画里的每一块明度都必须能用光的方向解释。
Place the zone · 放置区域
Sort each description into its zone of light. · 将每个描述归类到其光照区域。
The darkest value ON the form itself is the . · 形体本身的 darkest value 是。
The core shadow is the darkest band on the form; the cast shadow lies on the ground. · 本影是形体上最深的色带；投影位于地面上。
Select all · 所有 zones that belong to the shadow family. · 选择所有属于阴影家族的明度区域。
The highlight leads the light family. · 高光引领了受光家族。
The two most-missed zones
- The core shadow is the darkest band ON the form, where the surface turns fully from the light.
- Reflected light bounces into the shadow side — but is always darker than any lit halftone.
- Making reflected light too bright is the classic error that flattens the form.
最常画错的两个区域
- 明暗交界线是形体上最深的一条带，在表面完全背离光的地方。
- 反光弹回暗面——但它永远比任何受光的中间调更深。
- 把反光画得太亮是压平形体的经典错误。
Reflected light can be brighter than the lit halftones. · 反光可以比受光的半调更亮。
Reflected light always stays darker than any lit value. · 反光始终比任何受光部分暗。
Match the edge to its cause. · 将边缘与其成因匹配。
Edges describe how the form turns. · 边缘描述了形体的转折方式。
Edges tell the story
- The cast shadow is darkest and sharpest where it meets the object, softer further away.
- Hard shadow edges mean a sharp turn or a cast shadow; soft edges mean a gradual turn.
- Check the logic, not just the look — light cannot skip a zone.
边缘讲故事
- 投影在紧贴物体处最深最锐，越远越软。
- 硬的阴影边缘意味着急转或投影；软边缘意味着缓转。
- 检查逻辑，不只看效果——光不会跳过任何一个区域。
The cast shadow is darkest and sharpest where it ____ the object. · 投影在其____物体处最深且最清晰。
Contact = darkest, sharpest. · 接触 = 最深、最清晰。
If your reflected light is as bright as the lit side, the form breaks — the eye reads two light sources. Keep the whole shadow family darker than the whole light family.
如果反光和受光面一样亮，形体就断了——眼睛会读出两个光源。让整个暗部家族比整个亮部家族更深。
Set an egg on white paper under one lamp. Find all six zones, then check: highlight brightest, core shadow darkest on the egg, cast shadow darkest overall at the contact point, reflected light quietly lifting the shadow's edge.
在一盏灯下把鸡蛋放在白纸上。找全六个区域，然后检查：高光最亮，明暗交界线是蛋上最深处，投影在接触点整体最深，反光安静地抬起暗部的边缘。
One light makes six zones: highlight → light → halftone → core shadow → reflected light, plus the cast shadow. Core shadow darkest on the form; reflected light never brighter than lit halftones; edges follow the turn.
一个光源造出六个区域：高光→亮部→中间调→明暗交界线→反光，再加投影。交界线是形体上最深处；反光绝不亮过受光的中间调；边缘随转折变化。