Murphy, James E.Carr, HamishO'Neill, MichaelJohn Collomosse and Ian Grimstead2014-01-312014-01-312010978-3-905673-75-3https://doi.org/10.2312/LocalChapterEvents/TPCG/TPCG10/215-222Animations of horses are commonly used for entertainment purposes. A realistic animated model must move with a gait appropriate to its velocity. We present a kinematic animation system in which a horse model moves using gaits and transitions based on predictions from Dynamic Similarity theory. A Genetic Programming technique is used to evolve gait motion with dynamically adjustable limb extent. The system is controlled in real-time using a MIDI controller system based around the model's Froude number. We were successful in producing high quality animations of the horse's natural gaits and transitions.Categories and Subject Descriptors (according to ACM CCS): I.3.7 [Computer Graphics]: Three-Dimensional Graphics and Realism