C++ 3D Rendering Software

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Browse free open source C++ 3D Rendering Software and projects below. Use the toggles on the left to filter open source C++ 3D Rendering Software by OS, license, language, programming language, and project status.

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  • 1
    VirtualGL

    VirtualGL

    3D Without Boundaries

    VirtualGL redirects 3D commands from a Unix/Linux OpenGL application onto a server-side GPU and converts the rendered 3D images into a video stream with which remote clients can interact to view and control the 3D application in real time.
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    Downloads: 75,615 This Week
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  • 2
    The OpenGL Extension Wrangler Library
    The OpenGL Extension Wrangler Library is a simple tool that helps C/C++ developers initialize extensions and write portable applications. GLEW currently supports a variety of operating systems, including Windows, Linux, Darwin, Irix, and Solaris.
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    Downloads: 4,659 This Week
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  • 3
    FlightGear - Flight Simulator

    FlightGear - Flight Simulator

    FlightGear Flight Simulator: free open-source multiplatform flight sim

    Founded in 1997, FlightGear is developed by a worldwide group of volunteers, brought together by a shared ambition to create the most realistic flight simulator possible that is free to use, modify and distribute. FlightGear is used all over the world by desktop flight simulator enthusiasts, for research in universities and for interactive exhibits in museums. FlightGear features more than 400 aircraft, a worldwide scenery database, a multi-player environment, detailed sky modelling, a flexible and open aircraft modelling system, varied networking options, multiple display support, a powerful scripting language and an open architecture. Best of all, being open-source, the simulator is owned by the community and everyone is encouraged to contribute.
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    Downloads: 2,828 This Week
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  • 4

    DXVK

    Vulkan-based implementation of D3D9, D3D10 and D3D11 for Linux / Wine

    DXVK is a Vulkan-based translation layer for Direct3D 9 through 11, for use on Linux with Wine. Direct3D is a graphics application programming interface built for Windows and is used for rendering three-dimensional graphics in applications. It is typically useful in applications where performance is vital, such as in three-dimensional games. This project aims to provide support for Direct3D11, feature level 11_1, and Direct3D10, feature level 10_1. Currently however, there are still a few unsupported features, such as shared resources, predication, class linkage and target-independent rasterization. To get the best results out of this project, it is recommended that you use an esync-enabled Wine build to reduce CPU overhead in some games, and to disable desktop effects on your compositor, as this can cause stuttering issues when games are GPU-bound.
    Downloads: 303 This Week
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  • 5
    A free OpenGL utility toolkit, the open-sourced alternative to the GLUT library.
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    Downloads: 1,441 This Week
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  • 6
    Cube 2: Sauerbraten (game engine & FPS)
    3D game engine (more powerful redesign of the Cube engine) and FPS game
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    Downloads: 696 This Week
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  • 7
    Avogadro 2

    Avogadro 2

    Avogadro libraries provide 3D rendering, visualization, and analysis

    AvogadroLibs is the core C++ library behind Avogadro 2, an open-source molecular editor and visualization platform used in chemistry, materials science, and education. It provides the essential tools for constructing, analyzing, and visualizing molecular structures in 2D and 3D. Designed for extensibility, AvogadroLibs supports plugins for quantum chemistry computations, molecular mechanics, and surface rendering. It interfaces with multiple chemistry formats and data sources, making it a versatile backbone for scientific applications and custom visualization tools.
    Downloads: 129 This Week
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  • 8
    MeshLab

    MeshLab

    A processing system for 3D triangular meshes

    MeshLab, a mesh processing system, for user assisted editing, cleaning, filtering and rendering of large unstructured 3D triangular meshes (typical 3D scanning meshes). The system relies for mesh processing tasks on the gpl VCG library (vcg.sf.net).
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    Downloads: 216 This Week
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  • 9

    Irrlicht Engine

    3D Engine c++

    The Irrlicht Engine is an open source high performance realtime 3D engine written and usable in C++. It is completely cross-platform, using D3D, OpenGL and its own software renderers.
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    Downloads: 223 This Week
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  • 10
    Mandelbulber

    Mandelbulber

    3D fractal rendering software

    In summary, Mandelbulber generates three-dimensional fractals. Explore trigonometric, hyper-complex, Mandelbox, IFS, and many other 3D fractals. Render with a great palette of customizable materials to create stunning images and videos. The possibilities are literally infinite! Mandelbulber v2 is new line of this application. It was rewritten from scratch with new Qt based interface. Old Mandelbulber is still available in Files section.
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    Downloads: 208 This Week
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  • 11
    K-3D is the free (as in freedom) 3d modeling, animation, and rendering system.
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    Downloads: 192 This Week
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  • 12
    UE Viewer

    UE Viewer

    Viewer and exporter for Unreal Engine 1-4 assets

    Unreal Engine resource viewer (formerly Unreal Model Viewer) is a program for viewing and extracting resources from various games made with Unreal Engine. Sometimes the program is referenced as "umodel", the short of "unreal" and "model viewer". The project was originally named the "Unreal model viewer", however, the name was changed in 2011 to meet the request from Epic Games. Please note that the "official" project's name is "UE Viewer", and a short unofficial name of the project is "model" (it was left from the older name "Unreal MODEL viewer"). UE Viewer is a viewer for visual resources of games made with Unreal engine. Currently, all engine versions (from 1 to 4) are supported. We are using our own build system to compile UE Viewer. You may find a Perl script in Tools/genmake. This script generates makefiles from some human-friendly project format. After that you may build generated makefile using 'nmake' for Visual Studio or 'make' for gcc.
    Downloads: 42 This Week
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  • 13
    GLScene

    GLScene

    GLScene Engine for Delphi & C++Builder VCL Windows 32/64

    GLScene is an OpenGL based 3D library for Delphi, C++Builder and Lazarus. It provides visual components and objects allowing description and rendering 3D scenes in graphic applications. Update of newer versions of the trunk has been moved to https://github.com/glscene
    Downloads: 130 This Week
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  • 14
    Pure Data Computer Music System
    The Pure Data (short Pd) project on SourceForge unifies the extensions (or externals) written for the Pure Data Graphical Computer Music System written by Miller Puckette with contributions from many others.
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    Downloads: 112 This Week
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  • 15
    MeshLab

    MeshLab

    The open source mesh processing system

    MeshLab is an open-source, portable, and extensible system for the processing and editing of unstructured large 3D triangular meshes. It is aimed to help the processing of the typical not-so-small unstructured models arising in 3D scanning, providing a set of tools for editing, cleaning, healing, inspecting, rendering and converting this kind of meshes. MeshLab is mostly based on the open source C++ mesh processing library VCGlib developed at the Visual Computing Lab of ISTI - CNR. VCG can be used as a stand-alone large-scale automated mesh processing pipeline, while MeshLab makes it easy to experiment with its algorithms interactively. The open source system for processing and editing 3D triangular meshes. It provides a set of tools for editing, cleaning, healing, inspecting, rendering, texturing and converting meshes. It offers features for processing raw data produced by 3D digitization tools/devices and for preparing models for 3D printing.
    Downloads: 23 This Week
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  • 16
    OGRE (O-O Graphics Rendering Engine)
    for the latest release see either - https://github.com/OGRECave/ogre - https://github.com/OGRECave/ogre-next An efficient, object-oriented hardware accelerated 3D engine. It abstracts the differences between APIs and platforms and allows scene-oriented coding through an easy to use object model. Adaptable to multiple scene types (indoor, outdoor, whatever)
    Downloads: 90 This Week
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  • 17
    Celestia

    Celestia

    Real-time 3D visualization of space

    Celestia is an application for real-time 3D visualization of space, with a detailed model of the solar system, over 100,000 stars, more than 10,000 galaxies, and an extension mechanism for adding more objects.
    Downloads: 82 This Week
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  • 18
    BRL-CAD

    BRL-CAD

    Open Source Solid Modeling CAD

    BRL-CAD is a powerful cross-platform constructive solid geometry solid modeling system that includes an interactive geometry editor, ray-tracing for rendering & geometric analyses, network distributed framebuffer support, image & signal-processing tools.
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    Downloads: 80 This Week
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  • 19
    Tulip
    Tulip is an information visualization framework dedicated to the analysis and visualization of relational data. Tulip aims to provide the developer/user with a complete library/software, supporting the design of interactive information visualization
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    Downloads: 59 This Week
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  • 20
    GLC-Player
    GLC_Player is a OpenGL Open Source 3D viewer used to view 3d models (COLLADA, 3DXML, OBJ 3DS STL OFF COFF Format) and to navigate easily in these models.
    Downloads: 71 This Week
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  • 21
    3D game engine and multiplayer/singleplayer FPS game
    Downloads: 80 This Week
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  • 22
    tinyobjloader

    tinyobjloader

    Tiny but powerful single file wavefront obj loader

    Tiny but powerful single file wavefront obj loader written in C++03. No dependency except for C++ STL. It can parse over 10M polygons with moderate memory and time. tinyobjloader is good for embedding .obj loader to your (global illumination) renderer. We recommend to use master (main) branch. Its v2.0 release candidate. Most features are now nearly robust and stable (The remaining task for release v2.0 is polishing C++ and Python API).
    Downloads: 10 This Week
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  • 23
    Open3D

    Open3D

    A modern library for 3D data processing

    Open3D is an open-source library that supports rapid development of software that deals with 3D data. The Open3D frontend exposes a set of carefully selected data structures and algorithms in both C++ and Python. The backend is highly optimized and is set up for parallelization. Open3D was developed from a clean slate with a small and carefully considered set of dependencies. It can be set up on different platforms and compiled from source with minimal effort. The code is clean, consistently styled, and maintained via a clear code review mechanism. Open3D has been used in a number of published research projects and is actively deployed in the cloud. We welcome contributions from the open-source community. GCC 5.X and later on Linux. XCode 10+ and later on OS X 10.14+. Visual Studio 2019 and later on Windows.
    Downloads: 9 This Week
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  • 24
    Kokua viewer

    Kokua viewer

    Kokua is a V3 based open source metaverse viewer project.

    Kokua is an open source metaverse viewer project based on the Second Life Viewer source. Disclaimer: This software is not provided or supported by Linden Lab, the makers of Second Life. The goal of Kokua is to greatly improve the usability of the Viewer through community involvement, thoughtful design, modern development methods, and a pro-change atmosphere.
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    Downloads: 174 This Week
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  • 25
    LPub3D

    LPub3D

    LDraw™ editor for LEGO® style digital building instructions.

    LPub3D is an Open Source WYSIWYG editing application for creating LEGO® style digital building instructions. LPub3D is developed and maintained by Trevor SANDY. It uses the LDraw™ parts library, the most comprehensive library of digital Open Source LEGO® bricks available (www.ldraw.org/ ) and reads the LDraw LDR and MPD model file formats. LPub3D is available for free under the GNU Public License v3 and runs on Windows, Linux and macOS Operating Systems. LPub3D is also available as a Linux 'no-install', multi-platform AppImage. Portions of LPub3D are based on LPUB© 2007-2009 Kevin Clague, LeoCAD© 2025 Leonardo Zide, LDView© 2025 Travis Cobbs & Peter Bartfai and additional third party components. LEGO® is a trademark of the LEGO Group of companies which does not sponsor, authorize or endorse this application. LEGO® is a trademark of the LEGO Group of companies which does not sponsor, authorize or endorse this application. © 2015-2025 Trevor SANDY
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    Downloads: 38 This Week
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