daBongo LMS AI Training Courses

Lesson Content

What video extension does.

Video extension continues a clip from its final frame – generating additional frames that appear visually and motion-consistent with the original clip. This allows building longer video sequences from shorter generated clips without the visual discontinuity of cutting unrelated clips together.

Using the extension tool.

The extension workflow typically: takes the last frame of an existing clip as a visual anchor, optionally takes a continuation prompt describing what should happen next, and generates several additional seconds of video consistent with the visual starting point. Verify the current extension workflow at runwayml.com.

Maintaining consistency in chains.

When chaining multiple extensions to build a longer sequence, each extension uses the previous clip's final frame. Consistency across a long chain is not guaranteed – small drift in visual style, lighting, or subject appearance can accumulate across many extensions. Review each extension and the full chain periodically for consistency.

Extension vs. regeneration.

Use extension when the generated clip ends in a good visual state and you want to continue the action or scene from that point. Regenerate (start a new generation) when the current clip's visual direction isn't working and continuation from it won't improve on the problem. Extension continues from where the clip is – it can't fix earlier problems in the visual.