Local video with Wan and ComfyUI

• Design short clips that explain a specific idea.
• Understand when to use text-to-video or image-to-video.
• Combine image, voice, and subtitles into a reviewable result.

Scene plan before the model

{
  "escena": "vector database",
  "duracion_segundos": 4,
  "formato": "16:9",
  "entrada": "imagen aprobada rag-hibrido-portada.png",
  "movimiento": "paneo lento hacia los documentos citados",
  "prohibido": ["texto pequeño ilegible", "caras", "logos"],
  "salida": "clip-rag-hibrido-4s.mp4"
}

Recommended workflow

• Generate a still image and approve it.
• Create a 3 to 5 second clip with minimal movement.
• Check for deformations, broken text, and visual identity shifts.
• Add narration and subtitles outside the video model.
• Export a lightweight version for the web.

ffmpeg -i clip-rag-hibrido-4s.mp4 \
  -i narracion.wav \
  -shortest \
  -c:v libx264 -crf 23 -preset medium \
  -c:a aac \
  salida-capsula.mp4