Reelpen

Reelpen is a browser-based 3D scene builder designed to help creators plan shots before generating them. Key features include: * Arrange characters and environments in a 3D space * Direct character movement and camera angles * Export reference videos or PNG keyframes * Connect to compatible external assistants for scene inspection and editing This platform allows users to conceptualize and refine visual narratives with precision. You can begin by describing your scene to a connected external assistant via authenticated MCP, letting it build an initial draft, or by manually arranging elements directly in your browser. From there, fine-tune every detail, from camera placement and character paths to timing, ensuring your vision is accurately represented. Reelpen is ideal for filmmakers, animators, and content creators looking to meticulously pre-visualize their projects. It empowers users to achieve exact compositions and movements before committing to final video generation, integrating seamlessly with external video generators. The free beta is currently available, with external generation services being separate.