A GPU-accelerated immersive audio-visual framework for interaction with molecular dynamics using consumer depth...

Area of Science:

• Computational Chemistry
• Biophysics
• Human-Computer Interaction

Background:

• Advances in computational power and human-computer interaction technologies are driving the expansion of interactive molecular dynamics.
• Current methods for molecular dynamics simulations can be computationally intensive and lack intuitive user interfaces.

Purpose of the Study:

• To develop and benchmark a novel system for interactive molecular dynamics (IMD) using consumer depth sensors.
• To enable intuitive user control over molecular simulations through physical interaction.
• To enhance the exploration of molecular dynamics, particularly rare events.

Main Methods:

• Implemented a system that interprets human form as an energy landscape to chaperone molecular dynamics simulations.
• Utilized GPU acceleration to achieve 60 frames per second (FPS) for a fluid interactive experience.
• Scaled the system for immersive 360° environments using up to ten depth sensors for multi-user interaction.
• Developed wrappers for fast communication with GPU-accelerated molecular force evaluation routines.

Main Results:

• Demonstrated a 360° atmospheric molecular dynamics simulation in an educational context.
• Users successfully chaperoned the dynamics of a 10-alanine peptide in explicit water.
• Achieved acceleration of peptide rare event dynamics by 3-4 orders of magnitude for both expert and novice users.

Conclusions:

• The developed interactive molecular dynamics system offers a fluid and intuitive way to explore atomic-level simulations.
• GPU acceleration and multi-sensor integration enable scalable and immersive molecular dynamics experiences.
• The system significantly enhances the study of rare event dynamics in biomolecules, with applications in education and research.