Dynamic Sprites

Author/Creator ORCID





Citation of Original Publication

Ben Jones, et.al, Dynamic Sprites, Proceeding MIG '13 Proceedings of Motion on Games Pages 39-46 Dublin 2, Ireland, November 06 - 08, 2013, DOI: https://doi.org/10.1145/2522628.2522631


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Traditional methods for creating dynamic objects and characters from static drawings involve careful tweaking of animation curves and/or simulation parameters. Sprite sheets offer a more drawing-centric solution, but they do not encode timing information or the logic that determines how objects should transition between poses and cannot generalize outside the given drawings. We present an approach for creating dynamic sprites that leverages sprite sheets while addressing these limitations. In our system, artists create a drawing, deform it to specify a small number of example poses, and indicate which poses can be interpolated. To make the object move, we design a procedural simulation to navigate the pose manifold in response to external or user-controlled forces. Powerful artistic control is achieved by allowing the artist to specify both the pose manifold and how it is navigated, while physics is leveraged to provide timing and generality. We used our method to create sprites with a range of different dynamic properties.