SIGGRAPH 2010 By Focus
Fool Me Twice: Exploring and Exploiting Error Tolerance in Physics-Based Animation
Human perceptual error tolerance offers opportunities to trade accuracy for performance in physics-based animation (PBA). Based on perceptual metrics, this paper proposes a methodology to identify PBA's maximum error tolerance and applies this methodology to evaluate four case studies: simulation time-step, solver iteration, FEEC, and precision reduction.
Seeing is Believing: Body Motion Dominates in Multisensory Conversations
In many scenes with human characters, interacting groups are an important factor for maintaining a sense of realism. Through a series of perceptual studies, this paper considers how to realistically generate conversations for small groups of virtual agents.
Simulating Virtual Environments Within Virtual Environments as the Basis for a Psychophysics of Presence
One virtual environment system can simulate an application as if it were running on another system. In this paper, this fact is the basis for constructing psychophysics response functions that measure the extent to which an average person would experience presence across a set of different virtual-environment systems.
Using Blur to Affect Perceived Distance and Size
The amount of blur in an image can profoundly influence perceived scale, as seen in the tilt-shift photographic effect. This paper presents a model that explains the perceptual basis of this phenomenon and describes how to implement it effectively.