Advanced AI Image Generation Techniques: Depth of Field

🔮 AI生图进阶技巧：画面纵深 (Depth) 纵深这东西，说白了就是让观众的眼睛“自动走进去”，别像贴在屏幕上的平面贴纸。要表达纵深，核心就三招：分层、透视、空气。 1）分层：前景/中景/远景（最稳的纵深） 前景：近处遮挡物（树枝、栏杆、石块、窗框、雾丝） 中景：主体/行动发生区 远景：背景大环境（山体、城市、天空、建筑轮廓） 可复制词组 三层景深：前景虚化的枝叶/雾丝，中景清晰主体，远景云海与山脊渐隐 strong foreground-midground-background separation layered composition, depth layering, occlusion 关键点：一定要写“遮挡/叠压”（occlusion）。没有遮挡就不容易显深。 2）透视：让空间“收敛”（线性透视/尺度透视） A. 线性透视（最像“走进去”） leading lines, converging lines, vanishing point 一点透视 / 两点透视 地面纹理朝远处收束、道路/走廊线条指向消失点 例: “走廊/街道/桥梁线条汇聚到远处消失点” “透视收束明显，远处建筑更密更小” B. 尺度透视（巨物感+纵深） scale cues, diminishing scale, repeated elements smaller in distance 远处同类物体尺寸逐渐变小（鸟群、树、灯、山峰） 3空气透视：远处更淡更蓝更软（高级感靠它） 这招最“电影”，尤其我喜欢的冷调氛围图。 atmospheric perspective, aerial perspective distance haze, volumetric fog, mist layers 远景低对比、低饱和、略偏冷蓝；近景对比更强更清晰 例: “远处被薄雾吞没，对比降低，颜色更冷更浅，层层雾带分隔山体” 4清晰度控制：景深（DOF）做刀口 纵深不一定要全清晰。你要让视线有“主焦点”。 shallow depth of field, foreground bokeh, background bokeh 中景主体锐利，前景轻虚化，远景更软更雾 focus falloff, crisp focal plane 注意：景深别乱用。大场景想要“史诗纵深”，可以用中等景深 + 空气透视，别把远景全糊没了。 5光影：用明暗分层（别只靠雾） rim light separates subject from background light shafts / god rays cutting through fog near: stronger contrast; far: softer contrast 轮廓光把主体从背景抠出来，远处光更散更软 6纹理梯度：近处细，远处糊（真实世界就是这样） texture gradient, detail falloff foreground micro-details, distant simplified silhouettes 近景可见纹理颗粒和细节，远景简化成轮廓 纵深骨架（通用,直接复制拼装） strong sense of depth, layered composition (foreground / midground / background), foreground occlusion, leading lines toward a clear vanishing point, atmospheric perspective with mist layers, distant haze, depth layering, near elements sharp with rich texture, distant elements softer with lower contrast, clear subject-background separation, cinematic lighting 纵深负面（规则约束） flat composition, no depth, everything equally sharp, no perspective, no layering, no atmospheric haze, cutout look 7 场景化例子 A. 仙侠云海群山 layered fog banks separating peaks, foreground pine branches partially blocking the view, massive chain leading lines across the frame toward the palace (vanishing direction), atmospheric perspective: distant peaks pale and bluish, reduced contrast, near rocks sharp and textured, far silhouettes softened, volumetric light rays B. 人像也能有纵深（别只会拍大头贴） foreground soft bokeh (out-of-focus hair strands or frame edge), subject in sharp focus, background deep bokeh with distance cues (corridor / windows receding), cool haze in the far background, subtle rim light separating subject from background 重点 纵深 = 遮挡分层（前中后）+ 透视收束（消失点）+ 空气透视（远淡近实）+ 主焦点（清晰度梯度）。 你把这四个写进提示词，画面不想有纵深都难。