Search Results for "octree"

Trixi.jl is a numerical simulation framework for hyperbolic conservation laws written in Julia. A key objective for the framework is to be useful to both scientists and students. Therefore, next to having an extensible design with a fast implementation, Trixi.jl is focused on being easy to use for new or inexperienced users, including the installation and postprocessing procedures.

...It was originally designed to perform comparison between two 3D points clouds (such as the ones obtained with a laser scanner) or between a point cloud and a triangular mesh. It relies on an octree structure that is highly optimized for this particular use-case. It was also meant to deal with huge point clouds (typically more than 10 million points, and up to 120 million with 2 GB of memory).

The Graphics Toolbox (GTB) is a collection of C++ libraries and apps for computer graphics and data visualization. Wagner Correa initially created GTB as part of his Ph.D. research at Princeton University in collaboration with Professor Claudio Silva and Dr. James Klosowski. Several other researchers later contributed to GTB (see the AUTHORS file).

Vivid is a modern C++ 3D engine using OpenGL4+. It is written using Visual C++ 2022, and relies on several open source projects to achieve it's goal of making it easy and run to make modern games with it.

Similiar to the fast multipole method i guess. I realized that simulating a very large number of particles in e.g. electromagnetic sims can run into growing i/o demands. This is a way to overcome that hurdle. the low-level "octets" can be distributed among a cluster of computers, organized in a grid. they don't have to send each other their whole dataset - only a zoomed out image of it. the further away, the more zoomed out. thus, i/o traffic is greatly reduced. combine this with the...

...Direct summation is prohibitively expensive when M and N are large. We provide Fortran 90 code for two complementary treecode methods which reduce the cost. The standard particle-cluster treecode partitions the sources into an octree and applies a far-field approximation, while a recently developed cluster-particle treecode instead partitions the targets into an octree and applies a near-field approximation. Particle-cluster is faster when N >> M, and cluster-particle is faster when M >> N. Reference: Boateng, H. A. and Krasny, R., J. Comput. Chem, 34(25), 2013, 2159–2167 This material is based upon work supported by the National Science Foundation under NSF Grants DMS-0854870 and DMS-0915057. ...

mialib is a core library for game development and interactive graphics research, this has utility modules and defines a framework for developing graphical applications like games.

With cad2octree you can generate an octree-structure from a surface model in DXF format. The octree will kept in preorder traversion bit-stream (POT). It will generate octree structure from rigid bodies, which surfaces are polygons cubic B-splines.

Kobold's Quest 2 is the sequel to kobold's quest and features an octree for multi processing game mechanics. It is written in Python.

Ray3d is a multi-platform 3d game engine with an entire FPS game for it's techdemo. It's based on Irrlicht and other open source libraries, and written in C/C++. It is in pre-alpha and under HEAVY development.

DENDRO: A Parallel Geometric Multigrid Library for Finite Elements on Octree Meshes

Simple Open Object-Oriented Graphics Engine aims to be a very simple cross-platform engine based on OpenGl. Its purpose is educational and shows with a simple design how to integrate 3D concepts such as Octree, scene definition, Vector3, mesh, etc.

2D, 3D object indexes (Quadtree, Octree, Quadtree with object radius indexation), fast geometry find functions, template classes with embedded 2D, 3D indexation and fast search features.

OpenGL 3D Engine for Win32 and Linux coded with C++. Supports Lightmaps, Octree, Portals, Shaders, Skeletal animations, ...

Octree-based texture mapping for 3D models as described in the SIGGRAPH 2002 paper "Painting and Rendering On Unparameterized Models" from Thrown Clear Productions (www.thrownclear.com).

With cad2octree you can generate an octree-structure from a surface model in DXF format. The octree will kept in preorder traversion bit-stream (POT). It will generate octree structure from rigid bodies, which surfaces are polygons cubic B-splines.