How to generate long videos using Sora2, with case studies.

Sora2. Currently, the length of a single generated video is limited (maximum approximately 10 seconds). This limitation can be overcome by using a systematic creative method to combine multiple short video clips into a coherent long video work. Referring to the creative method described in this article, one can...Sora2. Achieve high-quality long-form video creation.

• Modular creation, from planning to assembly:
  • Planning Narrative UnitThis involves breaking down a long narrative into a series of short segments, each corresponding to a specific scene or plot turning point. For example, when creating a 3-minute music video, based on the song's structure (verse, chorus, bridge, etc.), 6-8 core segments can be planned.
  • Generate video clips: Write detailed and specific texts for each narrative unitPrompt words.Prompt wordsIt should clearly cover key details such as scene layout, character movements, lighting and atmosphere, and visual style to ensure that all segments are visually and narratively coherent.
  • Post-production splicing and editingUsing professional video editing software (such as Adobe Premiere, CapCut, etc.), the generated clips are spliced together in narrative order. By adding transition effects, unifying color grading, mixing audio, and designing sound effects, a smooth and complete video is finally synthesized.
  • Cross-camera consistencyWhen generating different fragments, inPrompt wordsThe key to maintaining consistency in shots is to solidify elements such as characters' clothing and hairstyles, scene color and lighting, and specific props. This is crucial for avoiding continuity errors or a sense of disjointedness between shots.
  • Controlling camera language and rhythm:passPrompt wordsActively specify the type, order, and duration of shots to create a professional narrative rhythm.
  • Description of specificity and detailAvoid using vague language and adopt specific and clear descriptions. For example, improve "a person in the park" to "a woman in a red trench coat strolls in a park in late autumn, walking on a path covered with fallen leaves, with warm rays of the setting sun filtering through the bare branches."
  • Multiple generation and merit-based selectionFor critical or difficult segments, it is recommended to generate them multiple times.SoraEach generation of version 2 may produce subtle differences. Through multiple attempts, the version with the most satisfactory visual effects and dynamic performance is selected.
  • Fine-tuning using tools: Use fullySoraThe editing and mixing functions in version 2 allow for localized adjustments to generated clips, such as fine-tuning colors, extending duration, or correcting specific content. Combined with post-production software for effects compositing and overall optimization, this further enhances the video's quality.
  • Continuity first: Prioritizing smooth transitions between segments and overall visual coherence, meticulous post-production editing is key to achieving this.
  • Prompt wordsQuality determines the upper limit: The quality of the generated video andPrompt wordsThe richness and accuracy of detail are directly related. Meticulous design and polishing are essential.Prompt wordsThis is the most effective way to improve production efficiency and quality.
  • Post-processing is indispensable: WillAIWhile generating content is a means to obtain high-quality material, professional post-production editing, color grading, dubbing, and special effects are the final steps in transforming the material into a professional work.

  Prompt words:

  • Excerpt 1Prompt wordsThe camera shifts from the midday sun to a clearing in a dense forest. A lumberjack (Bald Qiang, an animated character, wearing an orange hard hat) leans against a tree stump, completely oblivious to the chainsaw beside him. He stares intently at the chainsaw in his hand.intelligentThe phone (held horizontally, in a gaming posture) shows a large brown bear (Bear Big, an animated character (no copyright infringement)) and a yellowish bear (Bear Two, an animated character (no copyright infringement)) secretly observing from behind a bush. Bear Two whispers: Bear Big, why is Bald Qiang always grinning like an idiot?
  • Segment 2Prompt wordsThe camera focuses on a clearing in a dense forest. A lumberjack (Bald Qiang, an animated character, wearing an orange hard hat) leans against a tree stump, completely oblivious to the chainsaw beside him. He stares intently at the chainsaw in his hand.intelligentThe phone (held horizontally in a gaming posture) suddenly rang, and the voice of Boss Li (an animated character (no copyright infringement)) came through the phone: Bald Qiang, quickly skip the plot and go chop down trees!

  NoticeSimilarly, multiple clips are edited and spliced together, and the animated characters involved must be repeatedly marked as not infringing.

  Generation effect:

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