Real Time Animation of Virtual Humans: A Trade-off Between Naturalness and Control

Virtual humans are employed in many interactive applications using 3D virtual environments, including (serious) games. The motion of such virtual humans should look realistic (or ‘natural’) and allow interaction with the surroundings and other (virtual) humans. Current animation techniques differ in the trade-off they offer between motion naturalness and the control that can be exerted over the motion. We show mechanisms to parametrize, combine (on different body parts) and concatenate motions generated by different animation techniques. We discuss several aspects of motion naturalness and show how it can be evaluated. We conclude by showing the promise of combinations of different animation paradigms to enhance both naturalness and control

The evocation and expression of emotion through documentary animation

How might an animator distil and study emotion? Could animation itself be a means to unlock meaning that previous experiments have not been able to access? Animation has the power to both highlight and conceal emotions as expressed through body movement and gesture. When we view live action (human interview) documentary footage, we are exposed not just to the spoken words, but the subtle nuances of body movements. How much might be lost when documentary footage is transposed into animation, or indeed, what might be gained, translated through the personal and artistic view of the animator? Drawing on my own previous experience as a games animator, now using research through practice methodology, this paper explores the results of the first of a series of animations created to explore the more subtle nuances of gesture. Though the medium of a documentary style interview, opposing topics are used to evoke strong emotions; firstly of happiness, then of sadness, with a view to accessing real rather than acted (simulated) emotions and their associated body movements