{"slug":"render-light-glow-acr","title":"如何后期渲染光线感？只需ACR/Lightroom这个工具！","author":"Thomas看看世界","date":"2021-04-18","wechat":"https://mp.weixin.qq.com/s?__biz=MzI4NDA5MzE5NQ==&mid=2247493028&idx=1&sn=1e1b233fdc534a0290e141f14014aa72&chksm=eb821bc0dcf592d683a7bda31350f8494f362212b6e5804d4b9282aa9284eebf559e5ae743de&scene=21#wechat_redirect","blocks":[{"t":"h","x":"Thomas看看世界","xe":"Thomas Chu Photo"},{"t":"p","x":"光线感有助于提升照片画面的层次，同时可以烘托氛围。","b":false,"xe":"A sense of light adds depth and dimension to an image while enhancing its atmosphere."},{"t":"p","x":"今天的摄影后期教程中，Thomas会教大家如何用后期的方式，简单快速的制作出光线感，不需要非常复杂的技术，只需要ACR或者Lightroom中的径向滤镜工具就能搞定！","b":false,"xe":"In today's post-processing tutorial, Thomas teaches you how to create a sense of light in post — quickly and easily. No complex techniques required: the Radial Filter in ACR or Lightroom is all you need!"},{"t":"img","f":"img-02","w":1080,"h":719},{"t":"p","x":"虽然方法很简单，但视频中提到的“多步少量”和“恢复阴影”，是后期渲染出自然不生硬的光线的关键，大家一定要注意！","b":false,"xe":"Simple as the method is, the \"small amounts, multiple passes\" approach and \"recovering the shadows\" mentioned in the video are the keys to rendering natural, believable light — pay close attention to both!"},{"t":"h","x":"视频教程","xe":"Video Tutorial"},{"t":"bili","bv":"BV1S64y1m7jN","bpic":"bili-1","bt":"如何后期制造光线感？只需ACR/Lightroom这个工具！"},{"t":"p","x":"这一篇是上面视频的完整图文整理。Thomas 用一张原本平淡无光的峡湾湖景，演示了如何只靠 ACR（Camera Raw）或 Lightroom 里的径向滤镜，快速给照片渲染出自然的光线感，并把方法浓缩成「多步少量」和「恢复阴影」两条要点。下文按视频顺序展开，配有关键帧截图，适合先看图理清思路，再到视频里听细节。","xe":"This is the fully illustrated companion to the video above. Starting from a flat, lightless fjord lake photo, Thomas shows how the Radial Filter alone in Camera Raw or Lightroom can render a natural sense of light, and distills the method into two key points: \"small steps, many passes\" and \"restore the shadows\". The walkthrough below follows the video in order with keyframe screenshots — skim it here for the framework, then dive into the video for the details.","b":false},{"t":"p","x":"先看总览。视频在讲解过程中打出了两张要点卡，第一张就是整篇的灵魂——「多步少量，更自然」；而开头 0:05 与 0:10 处的一组对比，则直接展示了原片与成品之间的差距：同一张照片，加上了光线，氛围立刻不同。","xe":"Start with the overview. The video flashes two summary cards, and the first one is the soul of the whole tutorial — \"small steps, many passes, for a natural look\". A before/after pair at 0:05 and 0:10 shows the gap between the original and the finished frame: the same photo, but with light added, the mood transforms instantly.","b":false},{"t":"img","f":"v01","w":768,"h":480},{"t":"img","f":"v02","w":768,"h":480},{"t":"img","f":"v03","w":768,"h":480},{"t":"h","x":"01 认识径向滤镜：先画一个发光的圆","xe":"01 Meet the Radial Filter: Draw a Glowing Circle"},{"t":"p","x":"打开 ACR 时，Thomas 已经做完了 HSL 和基本面板里的曝光、调色等基础处理，这一步不再展开。制造光线感的核心工具，就是 Lightroom 或 ACR 中的径向滤镜（视频 0:47 处）：它影响的范围是一个圆形（椭圆），正好可以模拟一束光照到画面上形成的亮区，天然适合「造光」。","xe":"When opening Camera Raw, Thomas had already finished the basics — HSL plus exposure and color in the Basic panel — so he skips those. The core tool for rendering light is the Radial Filter in Lightroom or ACR (at 0:47 in the video): its range of effect is a circle (or ellipse), which conveniently mimics the bright pool a beam of light casts onto the scene — naturally suited for \"making\" light.","b":false},{"t":"img","f":"v04","w":768,"h":480},{"t":"p","x":"但造光必须符合自然规律。这张照片里影子明显朝向左边，说明光源在右上方，那么径向滤镜就应该加在画面右侧、山顶被照亮的方位——光加对了方向，看起来才会自然舒服（视频 1:48 处）。","xe":"But manufactured light must obey the laws of nature. In this photo the shadows clearly fall toward the left, meaning the source sits upper right — so the radial filter belongs on the right side of the frame, over the sunlit peak. Get the direction right and the result looks natural and comfortable (at 1:48 in the video).","b":false},{"t":"h","x":"02 四个滑块：色温、曝光、阴影、清晰度","xe":"02 Four Sliders: Temperature, Exposure, Shadows, Clarity"},{"t":"p","x":"光线感从哪些滑块来？第一组是色温与色调：色温往右拉，刷出的光线偏黄，像低角度的暖阳；色调往左拉，则在黄色中掺入紫色，融合出一种偏红的暖调（视频 1:11 处）。两者按需组合，就能调出想要的光色。","xe":"Which sliders create the sense of light? The first pair is Temperature and Tint: pull temperature right and the painted light turns yellow, like a low warm sun; pull tint left and purple mixes into the yellow, blending into a reddish warmth (at 1:11 in the video). Combine them to taste for the exact color of light you want.","b":false},{"t":"img","f":"v05","w":768,"h":480},{"t":"p","x":"第二组是曝光——光线来的方向理应更亮，所以曝光要提。但幅度一定要小：曝光提得太多，整个圆形范围一起提亮，很容易过曝（视频 2:00 处）。更聪明的做法是把阴影和黑色一起提升：曝光是全范围一起变亮，而阴影和黑色只提画面暗部，既垫亮了暗处又不容易过曝。注意黑色也别提太多，否则会产生强烈的雾化感（视频 2:11-2:41 处）。","xe":"The second pair is Exposure — the direction the light comes from should be brighter, so exposure goes up. But keep the amount small: push exposure too far and the whole circle brightens together, easily blowing out (at 2:00 in the video). The smarter move is to raise Shadows and Blacks alongside: exposure lifts everything at once, while shadows and blacks target only the dark tones — lifting the gloom without blowing the highlights. Just don't overdo Blacks, or a heavy foggy haze sets in (at 2:11-2:41 in the video).","b":false},{"t":"img","f":"v06","w":768,"h":480},{"t":"p","x":"最后一组是清晰度：阳光照来的方向，空气里总有一点雾气朦胧的感觉，所以适当减一点清晰度，能让亮区带上这种空气感；需要的话甚至可以减一点去除薄雾，进一步强化（视频 2:41 处）。","xe":"The last pair is Clarity: toward the direction of sunlight the air always carries a hazy glow, so easing off clarity lends the bright area that atmospheric feel; if needed, pull Dehaze down slightly to reinforce it (at 2:41 in the video).","b":false},{"t":"h","x":"03 要点一：多步少量，羽化出自然过渡","xe":"03 Key Point One: Small Steps, Many Passes, Feathered Transitions"},{"t":"p","x":"工具和滑块都简单，真正的关键在用法。Thomas 的习惯是：每一个径向滤镜的调整幅度都很小，然后用多个滤镜叠加出效果——这样过渡才自然。反例很直观：单个滤镜把参数一口气拉满，光斑边界立刻露馅，一眼就能看出那里被拉过一个滤镜，破绽太明显（视频 3:17-3:35 处）。","xe":"The tool and sliders are simple; the real key is how you use them. Thomas's habit: keep every single radial filter's adjustments tiny, then stack multiple filters to build the effect — only then do the transitions look natural. The counterexample is vivid: pump one filter's values to the max and the edge of the glow gives it away instantly — anyone can see a filter was dragged there (at 3:17-3:35 in the video).","b":false},{"t":"p","x":"具体的「少量」是什么量级？视频 3:38 处给出了一组参考值：暖色调（色温）只加 2，曝光只加 0.15，阴影加 20 左右，黑色加 5，清晰度适当减 5——这样一个滤镜只提亮一点点，几乎看不出痕迹。","xe":"What does \"small\" mean concretely? At 3:38 in the video Thomas gives a reference set: temperature plus 2, exposure plus just 0.15, shadows around plus 20, blacks plus 5, clarity minus 5 — a filter like this brightens only a touch and leaves virtually no trace.","b":false},{"t":"img","f":"v07","w":768,"h":480},{"t":"p","x":"接着就是「多步」：再画一个范围更大的径向滤镜，过渡因此更舒缓；再来一个更大的；然后沿光线来的方向，在右上角补一个专门模拟阳光射入的滤镜，甚至把下面的小屋也覆盖进光里；最后再来一个大而圆的滤镜兜底，让整片区域的衔接毫无痕迹（视频 3:58-4:40 处）。多个小滤镜层层叠出的大光区，远比一个大力度的滤镜自然。","xe":"Then comes \"many passes\": draw a second, larger radial filter so the transition stretches out; add an even larger one; then, along the direction the light travels, place one over the upper-right corner specifically to mimic the incoming sun — even sweeping the little cabin into the glow; finally add one big, round filter to unify the whole region seamlessly (at 3:58-4:40 in the video). Many small filters layered into one large glow look far more natural than a single heavy-handed pass.","b":false},{"t":"img","f":"v08","w":768,"h":480},{"t":"img","f":"v09","w":768,"h":480},{"t":"h","x":"04 要点二：压暗背光面，恢复该有的阴影","xe":"04 Key Point Two: Darken the Shaded Side, Restore True Shadows"},{"t":"p","x":"光提完还不够，第二张要点卡「恢复正常阴影和暗部」说的是反向操作：画面里有些地方本来就不该被照亮——山体的背光面、背对光源的坡面，被多个滤镜的羽化范围殃及之后显得过亮，违背了光影逻辑（视频 4:43 处）。","xe":"Brightening is only half the job. The second summary card — \"restore normal shadows and darks\" — is the reverse move: some places should never have been lit in the first place. The shaded faces of mountains and slopes turned away from the source get caught in the filters' feathered reach and end up too bright, breaking the logic of light (at 4:43 in the video).","b":false},{"t":"img","f":"v10","w":768,"h":480},{"t":"p","x":"恢复的方法：新建一个径向滤镜，把曝光设为减 0.25，用画笔工具或滤镜范围把那些不该亮的背光面刷回来——岸边的背光坡、山上的暗面等等逐一恢复。提亮时克制、该暗处压回，一增一减之后，光才显得真实而不是浮在画面上（视频 4:53-5:23 处）。","xe":"The fix: create a new radial filter with exposure at minus 0.25, and use the brush tool or the filter's range to paint the over-lit shaded faces back down — the shadowed bank, the dark side of the mountain, and so on. Restraint while brightening, and pressing back what should stay dark: only with this push and pull does the light read as real instead of floating on the picture (at 4:53-5:23 in the video).","b":false},{"t":"img","f":"v11","w":768,"h":480},{"t":"h","x":"05 前后对比与两条心法","xe":"05 Before and After, Two Takeaways"},{"t":"p","x":"视频 5:24 处是完整的前后对比：关掉所有径向滤镜，照片回到平淡的原样；重新开启，光线感立刻回到画面——暖光从右上洒下，山顶被点亮，暗部依然沉稳。整个操作在 ACR 里不过几分钟，却彻底改变了照片的氛围。","xe":"At 5:24 in the video comes the full comparison: switch off all the radial filters and the photo reverts to its flat original state; switch them back on and the sense of light returns instantly — warm light cascading from the upper right, the peak lit up, the shadows still grounded. The whole edit takes only minutes in Camera Raw, yet it completely transforms the photo's mood.","b":false},{"t":"img","f":"v12","w":768,"h":480},{"t":"img","f":"v13","w":768,"h":480},{"t":"p","x":"最后记住两条心法（视频 5:41 处）：第一，每步调整少量，但调整多步，并且尽量多地羽化、多留过渡；第二，用加深的方式重新恢复阴影，把不该亮的背光面压回去。做到这两点，你渲染出的光线就会非常自然。","xe":"Finally, two takeaways (at 5:41 in the video): first, adjust a little at each step but take many steps, feathering generously and preserving transitions; second, restore the shadows by darkening, pressing back the shaded faces that should never have brightened. Do these two things and your rendered light will look thoroughly natural.","b":false},{"t":"quote","x":"1. 用 ACR/Lightroom 的径向滤镜造光：色温偏暖、色调微紫，提曝光但幅度要小，主要靠提阴影和黑色垫亮暗部，再减清晰度营造雾气朦胧的空气感；2. 光线方向要符合画面光影逻辑——影子朝左，光就该从右上来；3. 要点一「多步少量」：单个滤镜参数宁小勿大（如色温+2、曝光+0.15），用多个由小到大的滤镜羽化叠加；4. 要点二「恢复阴影」：新建曝光-0.25 的滤镜或用画笔，把背光面等不该被照亮的区域压回去。","xe":"1. Build light with the ACR/Lightroom Radial Filter: warm the temperature, nudge tint toward purple, raise exposure only slightly, lift Shadows and Blacks to raise the gloom, and cut Clarity for a hazy atmospheric glow; 2. The light's direction must match the scene's logic — shadows fall left, so the light comes from upper right; 3. Key point one, \"small steps, many passes\": keep each filter gentle (e.g. temp +2, exposure +0.15) and layer several feathered filters from small to large; 4. Key point two, \"restore the shadows\": add a filter at exposure -0.25 or use the brush to press back shaded faces that should never have been lit."},{"t":"h","x":"欢迎关注@Thomas看看世界","xe":"Follow @Thomas Chu Photo,"},{"t":"h","x":"每周学会一个摄影技能","xe":"and learn one photography skill every week."}],"titleEn":"How to Render a Sense of Light in Post: Just One ACR/Lightroom Tool"}