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Collage B-roll

Explain how something works with cut paper. Each segment is a sheet of bold colour paper with black-and-white halftone photo cut-outs (a brain, a cup, an eye, a padlock) and colour paper shapes for the ideas (keys, a neuron, arrows). Pieces fly in, overshoot and snap into place at a hand-animated 12 frames a second. No words on screen: the voice-over and subtitles do the explaining. Made for science, health and "why does this happen" explainers.

Use this style
Good for
Science explainer
Footage
Tags
Format
16:9 1920×10809:16 1080×192030fps

What to provide

Describe the one thing you want to explain and its key steps, for example "Why caffeine wakes you up: sleepy molecules plug into locks on your neurons → caffeine looks alike and grabs the locks first → when it wears off, the sleepiness floods back". A visible metaphor for each step helps (keys and locks, a tap, gears). Upload photos of real objects and they become halftone cut-outs; no on-screen text is needed.

What you can change

field
每段一张满版色纸底:forest 墨绿、plum 深紫、tangerine 焦橙、cobalt 钴蓝、tomato 番茄红,或任意 #rrggbb;相邻段换色
paper
卡纸符号配色:yellow 芥末黄、teal 青绿、pink 粉、cream 奶油白,或任意 #rrggbb;同一含义全片用同一种颜色
pictures
库里自带六张半调剪纸(大脑、怀表、挂锁、咖啡杯、螺丝刀、眼睛);用户的照片或视频帧可做成半调抠图剪纸或矩形剪报
symbols
代码画的卡纸符号:钥匙(两种相似齿形)、神经元、圆片、卡片、箭头、爆炸星、自定义路径;眼睛眼皮可开合,怀表指针可走

Limitations

  • 支持 16:9 横版与 9:16 竖版、30 fps;同一段工程两种画幅都能画,摆位由段的 scene.js 按画布写
  • 画面不写任何文字、数字和图表,讲解全靠口播和平台字幕;不适合需要画面标注、数据图表或产品界面的内容
  • 素材只有黑白半调照片剪纸与彩色卡纸:不放彩色照片、不做写实场景和人物表演
  • 抠图靠 rembg:背景杂乱或主体被截断的图抠不干净,只能做成矩形剪报
  • 每秒 12 格的定格跳动与卡位回弹是风格本身,不能做平滑运动、淡入淡出或镜头推拉
  • 不自带配乐与音效
  • 不使用真实品牌的 logo

More examples

Why the caffeine crash hits

Why the caffeine crash hits

When caffeine wears off it drops out of the locks, and all the sleepy molecules that piled up flood back in at once: the eye closes and the head nods.

Collage B-roll · 16:9 · 6.0s