Client: New York Air Brake Train Dynamic Systems Description : Provided consultation on OpenSceneGraph terrain visualization topics for freight train simulator visuals. Designed VPB integration and custom depth partitioning schemes to manage multi-resolution terrain databases. Constructed custom tools for building small subsets of VPB terrain affected by terrain updates, and custom shaders to render geotypical
Client: COMPRO Computer Services Description : Assisted in troubleshooting and improving OpenSceneGraph and OpenFlight based flight simulation tools in support of European national defense clients.
Client: Ames Laboratory Description : Added new capabilities to the osgBullet physics toolkit to perform aggressive shape-retaining simplifications on novel models to produce efficient shapes that can be used for high-performance collision/physics calculations without compromising the overall shape and extent of the objects. A “short edge” technique was devised from scratch by AlphaPixel to work
Client: Ames Laboratory Description : Add specialized GIS clipping capability to Minerva GIS’s libraries to permit regions of interest to be selected and clipped against a large database of landcover polygons to generate data and summaries for further analysis.
Client: Ames Laboratory Description : Custom code to highlight OSG Nodes (specified by NodePaths) with a screen-space oriented bounding circle, annotated by a text object. Developed for in-house use, will be released as F/OSS software as part of osgWorks.
Client: Internal Description : PocketBacon is an iOS entertainment app developed and published in 2008 and later sold to the Columbus Bacon Festival. PocketBacon allows the user to add sizzling strips of bacon to the iPhone’s display, move them around by tilting or with a finger, and “eat” them, accompanied by humorous sound effects. The
Client: Internal Description : TapNet is an OpenGL 2D and 3D puzzle game for iOS based on the routing gameplay of the NET and nsNet games for Java and OSX. Similar in gameplay to the Gears games, the goal is to light up the whole grid with power as fast as you can.
Client: Confidential defense contractor Description : AlphaPixel designed and implemented a realtime 3D display to depict the positions and movements of multiple air craft and armaments within a realistic terrain environment, controlled by their “black box” telemetry either from pre-recorded files or live network data sources. The terrain environment was built from real-world GIS data
Client: Pelican Mapping Description : AlphaPixel successfully ported the osgEarth virtual globe toolkit to iPhone/iPad/iPod iOS architecture utilizing OpenGL ES2 (which lacks Fixed Function Pipeline capabilities). We completed integration with iOS’s Objective C core classes and built a touch-based manipulator and worked through many challenging limitations of the mobile platform.
Client: Ames Laboratory Description : AlphaPixel developed a GPU-based orthogonal slice-plane shader in GLSL to render a 3D volume texture (for example, medical MRI data) efficiently from a 3D texture with minimal CPU support. Uniforms are used to specify the model transforms, draw instancing generates a view-dependent dynamic number of slice planes at a specified
