The Logtell Project

  An Interactive Storytelling System for TV, Cinema, and Web

A Research Consortium



News - Highlights

Member Area

Sketch-Based Interactive Storytelling - "História Viva"

Research Project
IADE - Universidade Europeia
Felipe Gheno <>
Edirlei Soares de Lima <>
Ana Viseu <>

Drawings have been used for thousands of years as a visual complement to oral and written storytelling. The evolution of technology and the advent of interactive narratives brings the possibility of exploring drawings and storytelling in new ways. This research project explores new sketch-based interaction methods for interactive storytelling systems.


   Lima, E.S., Gheno, F., Viseu, A., 2020. Sketch-Based Interaction for Planning-Based Interactive Storytelling. In: Proceedings of the XIX Brazilian Symposium on Computer Games and Digital Entertainment (SBGames 2020), Recife, Brazil, p. 348-356.

Prototype Application:

"História Viva" is a multi-projector system that projects the story content onto the walls of a room, which create an immersive storytelling environment for children that favors learning. The dramatization system uses animated 2D graphics for the visual representation of characters, objects, and environments. The user interface of the sketch-based interaction system runs on mobile devices, such as smartphones and tablet computers, and it allows users to interact with the story by sketching objects. When a sketched object is recognized by the system, a virtual representation of that object is inserted into the virtual world where it can influence the decisions of characters and affect the story's outcome. For example, if a character is lost in a dark forest during the night, users can help him by drawing the sun, which will turn night into day and the character will be able to find his path. However, if users decide to draw something different, like a candle or a campfire, the character can end up starting a wildfire by mistake, which leads to a completely different storyline.


   Story Dramatization System
   Sketch-Based Interaction App (APK for Android Devices)