Whitepapers

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In this section, you will find whitepapers, technical overviews, and published articles about products and technology from Presagis.

Jun 2009

06.26.09

Lessons Learned Developing a CDB Run Time Publisher

Historically, synthetic environments have been generated off-line, often requiring unique, and sometimes proprietary, databases to be generated for each sub-system of a simulator. While this approach has been used successfully in many fielded systems, its disadvantages can include lengthy database production times, data duplication, and the introduction of correlation errors due to the variety of tools used to generate the content. The Common Database (CDB) initiative was developed for the United States Special Operations Command (USSOCOM) to facilitate the rapid creation of databases necessary to meet their mission rehearsal timelines. CDB defines a single database repository consisting entirely of open formats, which provides source level correlation for all components of the simulation. CDB also introduces the concept of a Run Time Publisher (RTP) that operates on these open formats to convert the data at run time into the form most optimally suited for each Client.

May 2009

05.22.09

Sensor Mission Training for Operators, Analysts, and Decision Makers

With the introduction of numerous ISR platforms, it has become even more important to train the complete intelligence chain from system operation to image analysis to the staff decision maker whose responsibility it is to action the information provided. Developing a trainer that provides the ability to simulate an environment representative of today's combat environment, completely immerse the trainees into systems representative of actual radar consoles, as well as providing a realistic simulation of the sensor system being simulated can prove cost prohibitive. This paper will explore the possibility of developing such a system utilizing commercial off the shelf technology and the advantages this offers and well as potential future applications of this confi guration.

Oct 2008

10.29.08

A Flexible Solution to Deploy Avionics Displays to Multiple Embedded Platforms

Avionics HMI developers depend on both in-house and COTS HMI tools in their day-to-day work.  Unfortunately, many of these solutions support only a narrow set of embedded computing platforms or do not meet the performance requirements that a program defines. This means that engineering choices can be limited for HMI software and hardware combinations at the initial design phase and that seemingly straightforward hardware upgrades during an aircraft's lifecycle can become problematic. Yannick Lefebvre explains how VAPS XT makes it easier to deploy avionics displays to multiple embedded platforms more quickly and efficiently.
10.22.08

From Raw Data to Running System
Reducing mission rehearsal and training application production timelines using the Common Database (CDB)

The purpose of this whitepaper is to provide a concise, high-level
technology description and a list of benefits in order to support the CDB adoption
decision making process.

Jun 2008

06.27.08

Understanding ARINC 661 and the benefits of 661-based development tools

This paper will first provide an overview of ARINC 661 concepts and then describe how commercial tools can be used to simplify the creation of displays following this standard.

06.27.08

Creating Next-Generation Display Applications for Real-Time Embedded Systems

This paper will describe the VAPS XT application creation workflow from beginning to end and will then focus on the process of creating a custom set of runtime libraries to deploy the code on a number of target systems.

May 2008

05.26.08

Geometry Configuration for Performance in Vega PrimeTM Applications


The objective of this paper is to provide some useful tips and tricks to configure geometry in both CreatorTM and Vega Prime to achieve optimal rendering performance.  This paper addresses optimizations in the areas of graphics state, geometry, and hierarchy that are essential to achieving the best performance possible.

Nov 2007

11.28.07

Automated Shader Generation using a Shader Infrastructure

This paper presented at I/ITSEC 2007 introduces a Shader Infrastructure that automates the building of vertex and fragment shaders by analyzing the OpenGL state machine. The Shader Infrastructure is capable of not only dynamic generation of highly efficient shaders for rendering any legacy data considered valid by the OpenFlight standard, but also extending the rendering pipeline via Advanced Rendering Techniques.

Aug 2007

08.22.07

I24: Reconstructing Thermal Emissions on the GPU using an Indexed Texture Format that Texture Filters and MIP-maps

A desirable feature in IR sensor simulation is to provide radiance-based imagery that responds to changes in material temperatures as a function of simulated time-of-day, atmospheric state (i.e. cloudy, rainy, clear, etc.), and surface orientation. We propose a scheme in this paper, called “I24”.
08.22.07

An Open Programming Architecture for Modeling Ocean Waves

Typical ocean simulations provide for wave modeling that is extraordinarily restrictive. Read how our creative solution introduces new algorithms for rendering ocean waves in one unified manner, while simulation algorithms that are not native to any software system perform the generation and animation of the waves, modify the character of the ocean surface, and manage the underlying physics.

Dec 2006

12.04.06

Surf Zone Modeling for an EFV Trainer for the UMSC

Find out how the UMSC used Vega Prime to solve challenges related to open water simulation for the EFV Trainer.
12.04.06

Material Classification Pragmatics: Creating and Evaluating Geo-specific Material Assignments

This paper presents large-area, geo-specific material classification from a pragmatic view. It explains the basic components of a material classification and provides advantages/disadvantages of the two most widely-used material classification techniques.

12.01.06

Virtual Texture: A Large Area Raster Resource for the GPU

This paper presents a novel approach, called Virtual Texture, that addresses the challenges of utilizing huge amounts of raster data on the programmable graphics pipeline.  It includes examples of techniques where Virtual Texture has been used successfully to address simulation demands.
12.01.06

A Game-Based COTS System For Simulating Intelligent 3D Agents

Using the latest in computer gaming techniques, this paper presents a commercial system for individual-level human simulation that is scalable to hundreds of people in real-time with a particular focus on the realistic inter-city navigation: one of the hardest components of visual individual life-form simulation.

Apr 2006

04.25.06

Lessons Learned From Games middleware integration

This paper describes the experience of embedding a typical game middleware SDK into a traditional military training simulator.  The paper also presents reasons for having considered game (and crossover) technologies and tools for adoption as well as an overview of areas where the technologies overlap.

Dec 2005

12.31.05

The Modernization of HMI Development Tools to Support the Entire Development Process

Next-generation information display development tools introduce new features to support the development of complex displays and provide closer connectivity with third-party applications to address the full breadth of the HMI development cycle.  This paper describes these new features in detail and highlights their benefits.
12.31.05

Creator Terrain Studio Terrain Generation Innovation

For the most part, existing terrain production tools are unable to meet the accuracy and fidelity requirements for large database production projects, especially when production is time-critical.  Learn how Creator Terrain Studio can overcome these, and other, challenges.

Jul 2005

07.12.05

Analyzing Memory Usage Patterns in a Large-Scale Visual Simulation

The paper presents a practical approach to identification and utilization of dynamic memory allocation and usage patterns in a large-scale visual simulation application.  The paper presents practical guidelines and techniques found particularly useful in the process of development of the Vega PrimeTM framework (a large-scale C++ COTS toolkit) and tuning high-performance visual simulation applications built on top of it.

Dec 2004

12.31.04

DO-178B: Top 13 DO-178B Mistakes (and how to avoid them)

What are the most common mistakes via DO-178B? As one of the largest, fastest growing, avionics-related services companies in North America, High Rely has captured both their own, and their client's, most common mistakes. Find out how to achieve DO-178B compliance while meeting (and hopefully surpassing) the competition.
12.31.04

Military Avionics Certification via DO-178B & DO-254

The convergence of military and commercial software standards for avionics are converging on a common set of standards - what do you need to know to ensure that you're ready?
12.31.04

DO-178B Costs Versus Benefits

DO-178B has increasingly evolved into the de facto standard for commercial avionics, then Military avionics, and now, general aerospace electronics. And the new DO-178C is on the horizon. DO-178B requires planning, consistency, determinism, thorough documentation and testing, and proof of preceding attributes. Find out more about the values, benefits and costs of achieving DO-178B certification.

12.01.04

Crowd Modeling For Military Simulations Using Game Technology

The objective of this paper is to present the process involved with the design and development of a simulation that integrates commercially available game technology with current military simulations in order to generate realistic and believable crowd behavior. This whitepaper was written by authors from the following organizations: Virginia Modeling Analysis & Simulation Center, Engenuity Technologies, Inc., and WernerAnderson, Inc.

Jun 2004

06.07.04

Effective Use of Shaders in Presagis Visualization Products

Shaders have been used extensively in the entertainment industry for years and are now starting to have more wide spread use in the visual simulation community. Presagis takes advantage of shader technology internally in their commercial off the shelf (COTS) products, such as Vega Prime Marine, and also allows modelers and application developers to integrate their own shaders into their simulation applications. The focus of this paper is to discuss the tools available to simulation developers for the generation and manipulation of shaders in Creator and Vega Prime, and to describe ways to avoid or overcome some of the challenges associated with shader integration in simulation applications.

Dec 2003

12.31.03

COTS Tools for Flight Simulation

The world of training is constantly evolving to keep up-to-date with the newest aircraft technology and the ever changing requirements of pilot and aviation safety. To meet the requirements of different levels of education, flight simulators must also evolve. Download the whitepaper to find out more.