[Feature] Scene Editor - Prompt Configuration and AI Model Parameters #63
Description
Summary
Build the per-scene configuration panel for prompt writing and AI model parameter tuning. This is the primary interface through which users direct the AI video generation for each scene.
Requirements
- Rich text prompt editor with character count
- Negative prompt field (what to avoid in generation)
- Model selector dropdown (all Replicate video models)
- Per-model dynamic parameter forms: quality, steps, CFG scale, seed, motion bucket, FPS, duration
- Resolution/aspect ratio override per scene
- Model parameter presets: "Fast Draft", "Balanced", "High Quality"
- Save custom parameter preset with name
- Copy parameters from another scene
- Parameter history (revert to previous parameters)
- Cost estimate display per generation attempt
- Prompt enhancement button (use Claude to improve the prompt)
- Prompt suggestions based on scene context
- Prompt templates library (cinematic, anime, realistic, etc.)
- Reference image upload (multiple images for style/content guidance)
- Seed lock toggle (reproduce same result)
Acceptance Criteria
- Prompt editor accepts text and shows character count
- Model selector dynamically loads available Replicate models
- Parameter forms update to match selected model's schema
- Parameter presets can be saved and applied
- Cost estimate updates in real-time as parameters change
- Claude prompt enhancement rewrites and improves user prompt
Related
Part of the ai-video-editor Flutter application. Depends on #62 (Scene Management).