ACCORD is a C library for composition of SEM or scanning helium-ion microscope images with correction of drift. It is able to compose (average) large sets of extremely noisy images that were acquired by scanning charged-particle microscopes at the highest possible speeds (lowest pixel-dwell times). If the images are composed using traditional techniques, they usually become extensively blurry. The technique that is implemented in this software corrects these derogations by pre-shifting the composed frames.
Bullet is a 3D game multiphysics library that provides state of the art collision detection and soft body and rigid body dynamics. Bullet is integrated into Cinema 4D, Lightwave, and Blender. A Houdini and Maya Plugin is available. It has a modular extendible C++ design with hot-swap of most components. The back-ends were optimized for pthreads/Win32 Threads multi-threading and PS3 Cell SPU. Other features include discrete and continuous collision detection (CCD), swept collision queries, ray casting with custom collision filtering, generic convex support (using GJK), capsule, cylinder, cone, sphere, box, and non-convex triangle meshes. Rigid body dynamics include constraint solvers, generic constraints, ragdolls, hinges, and ball-sockets. Constraint limits and motors are supported. Soft body support includes cloth, rope, and deformable objects. Import and export into COLLADA 1.4 Physics format is supported. Dynamic deformation of non-convex triangle meshes is supported by refitting the acceleration structures.
The Cafu Engine is an all-purpose, modern 3D graphics engine and game development kit. It is feature complete to get you started quickly. It can be used to create a variety of 3D applications, including games, simulations, and training and architectural software. Written in C++, the tools, libraries, and framework have been designed to make the development of new games and other 3D applications easy. They are actively and continuously developed in order to provide the latest technology.
Cain performs stochastic and deterministic simulations of chemical reactions. It can spawn multiple simulation processes to utilize multi-core computers. It stores models, simulation parameters, and simulation results (populations and reaction counts) in an XML format. In addition, SBML models can be imported and exported. The models and simulation parameters can be read from input files or edited within the program. Solvers are implemented as command line executables, which makes it easy to launch batch jobs and simplifies the process of adding new solvers. Solvers include Gillespie's direct method, Gillespie's first reaction method, Gibson and Bruck's next reaction method, Tau-leaping, and Hybrid direct/tau-leaping.
Code_Aster offers a full range of multi-physical analysis and modelling methods that go well beyond the standard functions of software for computational thermomechanics: static and dynamic mechanics, linear or not, modal analysis, harmonic and random response, seismic analysis, acoustics, thermics, fracture, damage and fatigue, multiphysics, drying and hydratation, metallurgy analysis ,soil-structure, fluid-structure interactions, geometric and material non linearities, and contact and friction. It has a wide range of material properties (95 constitutive laws): porous media, geomaterials, damage, elastoplasticity, elastoviscoplasticity, etc., a wide range of finite elements (395), and a wide range of loadings.
Quaternions are numbers with 4 parts: one for time and three for space. Command Line Quaternions is a set of command line functions that generate thousands of points of quaternions, which are fed into animation software. This forms the foundations of analytic animations, a logical extension of analytic geometry.
Debyer takes a file with atom positions as input and can output X-ray and neutron diffraction patterns, the total scattering structure function, the pair distribution function (PDF), and related functions (RDF, reduced PDF). It can be used for comparison of molecular dynamics simulations or other models of atomistic structure of the material with X-ray and neutron powder diffraction experiments. The parallel version uses the MPI library.