#Urho3D

Urho3D is a free lightweight, cross-platform 2D and 3D game engine implemented in C++ and released under the MIT license. Greatly inspired by OGRE and Horde3D.

Main website: http://urho3d.github.io/

##License Licensed under the MIT license, see License.txt for details.

##Credits Urho3D development, contributions and bugfixes by:

• Lasse Öörni (loorni@gmail.com, AgentC at GameDev.net)
• Wei Tjong Yao
• Aster Jian
• Colin Barrett
• Erik Beran
• Danny Boisvert
• Carlo Carollo
• Pete Chown
• Sebastian Delatorre (primitivewaste)
• Josh Engebretson
• Chris Friesen
• Alex Fuller
• Mika Heinonen
• Graham King
• Jason Kinzer
• Gunnar Kriik
• Ali Kämäräinen
• Pete Leigh
• Jonne Nauha
• Paul Noome
• David Palacios
• Alex Parlett
• Jordan Patterson
• Vladimir Pobedinsky
• Nick Royer
• Jonathan Sandusky
• Miika Santala
• Joshua Tippetts
• Daniel Wiberg
• Steven Zhang
• AGreatFish
• Enhex
• Firegorilla
• Magic.Lixin
• Mike3D
• Modanung
• OvermindDL1
• Skrylar
• andmar1x
• amadeus_osa
• atship
• att
• celeron55
• hdunderscore
• marynate
• mightyCelu
• nemerle
• ninjastone
• raould
• rasteron
• reattiva
• rifai
• skaiware
• szamq
• thebluefish

Urho3D is greatly inspired by OGRE (http://www.ogre3d.org) and Horde3D (http://www.horde3d.org). Additional inspiration & research used:

• Rectangle packing by Jukka Jylänki (clb) http://clb.demon.fi/projects/rectangle-bin-packing
• Tangent generation from Terathon http://www.terathon.com/code/tangent.html
• Fast, Minimum Storage Ray/Triangle Intersection by Möller & Trumbore http://www.graphics.cornell.edu/pubs/1997/MT97.pdf
• Linear-Speed Vertex Cache Optimisation by Tom Forsyth http://home.comcast.net/~tom_forsyth/papers/fast_vert_cache_opt.html
• Software rasterization of triangles based on Chris Hecker's Perspective Texture Mapping series in the Game Developer magazine http://chrishecker.com/Miscellaneous_Technical_Articles
• Networked Physics by Glenn Fiedler http://gafferongames.com/game-physics/networked-physics/
• Euler Angle Formulas by David Eberly http://www.geometrictools.com/Documentation/EulerAngles.pdf
• Red Black Trees by Julienne Walker http://eternallyconfuzzled.com/tuts/datastructures/jsw_tut_rbtree.aspx
• Comparison of several sorting algorithms by Juha Nieminen http://warp.povusers.org/SortComparison/

Urho3D uses the following third-party libraries:

• AngelScript 2.29.1 (http://www.angelcode.com/angelscript/)
• Box2D 2.3.0 (http://box2d.org/)
• Bullet 2.82 (http://www.bulletphysics.org/)
• Civetweb (http://sourceforge.net/projects/civetweb/)
• FreeType 2.5.0 (http://www.freetype.org/)
• GLEW 1.9.0 (http://glew.sourceforge.net/)
• jo_jpeg 1.52 (http://www.jonolick.com/uploads/7/9/2/1/7921194/jo_jpeg.cpp)
• kNet (https://github.com/juj/kNet)
• libcpuid 0.2.0 (http://libcpuid.sourceforge.net/)
• Lua 5.1 (http://www.lua.org)
• LuaJIT 2.0.3 (http://www.luajit.org)
• LZ4 (http://code.google.com/p/lz4/)
• MojoShader (http://icculus.org/mojoshader/)
• Open Asset Import Library (http://assimp.sourceforge.net/)
• pugixml 1.5 (http://pugixml.org/)
• rapidjson 0.11 (https://code.google.com/p/rapidjson/)
• Recast/Detour (https://github.com/memononen/recastnavigation/)
• SDL 2.0.3 (http://www.libsdl.org/)
• StanHull (http://codesuppository.blogspot.com/2006/03/ john-ratcliffs-code-suppository-blog.html)
• stb_image 2.05 (http://nothings.org/)
• stb_image_write 0.98 (http://nothings.org/)
• stb_vorbis 1.05 (http://nothings.org/)
• tolua++ 1.0.93 (http://www.codenix.com/~tolua)

DXT / ETC1 / PVRTC decompression code based on the Squish library and the Oolong Engine. Jack and mushroom models from the realXtend project. (http://www.realxtend.org) Ninja model and terrain, water, smoke, flare and status bar textures from OGRE. BlueHighway font from Larabie Fonts. Anonymous Pro font by Mark Simonson. NinjaSnowWar sounds by Veli-Pekka Tätilä.

##Documentation Urho3D classes have been sparsely documented using Doxygen notation. To generate documentation into the "Docs" subdirectory, open the Doxyfile in the "Docs" subdirectory with doxywizard and click "Run doxygen" from the "Run" tab. Get Doxygen from http://www.doxygen.org & Graphviz from http://www.graphviz.org. See section "Documentation build" below on how to automate documentation generation as part of the build process.

The documentation is also available online at http://urho3d.github.io/documentation/HEAD/index.html

Documentation on how to build Urho3D: http://urho3d.github.io/documentation/HEAD/_building.html Documentation on how to use Urho3D as external library http://urho3d.github.io/documentation/HEAD/_using_library.html

Replace HEAD with a specific release version in the above links to obtain the documentation pertinent to the specified release. Alternatively, use the document-switcher in the documentation website to do so.

##History The change history is available online at http://urho3d.github.io/documentation/HEAD/_history.html