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Virtual Reality Scene Generator (VRSG)
Overview
Real-time Media Clips of Demo Scenarios
Computer Image Generator (IG)
Standalone Networked Viewer
What's New in VRSG
Tour the User Interface
Scenario Editor
Physics-Based IR
3D Content Libraries
3D Ocean Simulation
Character Animation
First Person Simulator
Radar Simulation
VR Tracker Support
Sound Support
Multi-Channel IG
Combat Vehicle Identification
Multi-Channel IG
FBX Conversion Tool
OpenFlight Conversion Tools
Interoperability with SAF
System Requirements
User's Guide
Terrain Tools
CONUS++ 3D Terrain
CONUS++ Virtual Airfields
World 3D Terrain
Collecting and Processing Sub-Inch Geospecific Imagery
Summary of MetaVR's Available 3D Terrain
3D Terrain Creation
Complete Systems
JTAC Desktop Simulator
3D Accelerators
Storage Devices
Navigational Controllers
Evaluation Policy

VRSG as a Standalone DIS Viewer

VRSG real-time rendering of an HH-60G entity in flight over virtual Afghanistan terrain.
MetaVR VRSG real-time rendering of an HH60G entity in flight over virtual Afghanistan terrain.
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As a standalone Windows-based DIS viewer, MetaVR™ Virtual Reality Scene Generator™ (VRSG™) core features include:

 
  • Dynamic environmental effects such as haze, ground fog, volumetric clouds, night sky.
  • 3D animated characters; VRSG support hundreds of characters within the field of view while still maintaining a high frame rate.
  • User-extendable special effects including fire, missile trails, scene-illuminating flares, particle-based smoke explosions, rotor wash, and dust trails that respond to wind.
  • Multiple degree-of-freedom hardware tracker support for controlling the position and/or orientation of the VRSG viewpoint.
  • Conversion tools for converting FBX models or OpenFlight models and terrain to MetaVR's model and terrain formats.
  • Absolute terrain correlation with SAF format. Also, ability to use VRSG to visually inspect SAF databases for terrain anomalies.
  • A screen capture function that captures still images and saves them to the Windows Clipboard or to a file for use in other applications such as Microsoft Office.
  • Support for UDP multicast, broadcast, or point-to-point communication.
  • Teleportation to arbitrary locations.
  • An extensive set of attachment modes.
  • Ability to modify and save configuration settings of a simulation for reuse in subsequent sessions.

Navigation

You navigate through the virtual world by using the VRSG user interface and a game controller such as the 3Dconnexion SpaceMouse or Space Pilot. Additonal devices can be used: a joystick for running VRSG in fixed-wing mode, or a gamepad for running VRSG in first person shooter or UAV camera mode.

Real-time MetaVR VRSG screen capture of Iranian aircraft entities flying over Metadesic-formatted terrain.
MetaVR Iranian aircraft entities flying over Metadesic-formatted terrain.
MetaVR Iranian aircraft entities flying over Metadesic-formatted terrain.

3D API

By using the Microsoft Direct3D API, a subcomponent of the Microsoft DirectX interactive media technologies, VRSG provides significant capabilities for multiplayer interaction on commercially available graphics cards and personal computers. VRSG is also interoperable with other DirectX components, such as DirectSound, and DirectSound 3D.

Network capabilities

Using the DIS protocol, VRSG can visualize up to several thousand entities simultaneously on a high-fidelity terrain database.

VRSG has no explicit limit on many entities it can it handle in a scene while maintaining real-time performance. MetaVR has customers run exercises with upwards of 100,000
entities while maintaining real-time performance. The only limitations might be performance considerations such as the bandwidth of the communications channel, model complexity, database complexity, viewing range, and how near the entities are in your field of view.

The following diagram shows a network simulation where entity generation occurs on one computer and the visualization takes place on another computer:

Network simulation diagram

Interaction with SAF

VRSG is fully interoperable with commonly used Semi-Automated Forces (SAF) and other DIS-compliant applications by rendering entities three-dimensionally and providing positional feedback information and user control visually on the 2D display.

Comparison of a mission exercise on MetaVR's Afghanistan database rendered in BSI MACE, with VRSG providing the 3D view on the left, and the MACE mission planning tools on 2D map display of the correlated SAF database from the same source data. Images courtesy of BSI.
Mission exercise on MetaVR's Afghanistan database rendered in the VRSG view in BSI MACE. BSI MACE's mission planning tools on its correlated SAF 2D Afghanistan database.
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As a DIS-based simulation application, VRSG is compatible with SAF applications such as OneSAF, JointSAF, XCITE, and commercial systems such as BattleSpace Simulations' (BSI's) Modern Air Combat Environment (MACE). Systems such as MACE and XCITE, which can utilize MetaVR's Metadesic (MDS) terrain tiles for their elevation source, can achieve fully correlated databases without the need for ground-clamping.

Conversion utilities

MetaVR provides free conversion utilities to convert OpenFlight databases to MetaVR's round-earth Metadesic (MDS) format and to convert FBX or OpenFlight models to the MetaVR 3D model format. These conversion utilities enable you to reuse your existing databases and entities for visualization within VRSG. These utilities are distributed with VRSG. In addition, MetaVR provides a plugin for Presagis Creator, which enables you to export OpenFlight models in MetaVR's model format.

If you need a model that is not available in VRSG’s current model libraries, you can order commercially available 3D models in OpenFlight format from a number of sources and convert them to MetaVR’s runtime model format. If you need to edit a MetaVR model, a site license for the 3D model’s source data is available. Contact support@metavr.com for details.

 

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