Open Source Python 3D Rendering Software

Photogrammetry is the science of making measurements from photographs. It infers the geometry of a scene from a set of unordered photographies or videos. Photography is the projection of a 3D scene onto a 2D plane, losing depth information. The goal of photogrammetry is to reverse this process. The dense modeling of the scene is the result yielded by chaining two computer vision-based pipelines, “Structure-from-Motion” (SfM) and “Multi View Stereo” (MVS). Fusion of Multi-bracketing LDR images into HDR. Alignment of panorama images. Support for fisheye optics. Automatically estimate fisheye circle or manually edit it. Take advantage of motorized-head file. Easy to integrate in your Renderfarm System. Add specific rules to select the most suitable machines regarding CPU, RAM, GPU requirements of each Node.

K-3D is the free (as in freedom) 3d modeling, animation, and rendering system.

Crystal Space is an Open Source 3D SDK for Unix, Windows, and MacOS/X. It renders with OpenGL and features GLSL shaders, CG shaders, deferred rendering, dynamic shadows, bullet based physics library, terrain engine, skeleton based animation meshes, exporter for Blender, portals, etc...

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.

Armory is an open-source 3D engine focused on portability, minimal footprint and performance. The renderer is fully scriptable with deferred and forward paths supported out of the box. Armory provides a full Blender integration add-on, turning it into a complete game development tool. The result is a unified workflow from start to finish. Powered by Armory engine, ArmorPaint is a stand-alone software designed for physically-based texture painting. Drag & drop your 3D models and start painting. Receive instant visual feedback in the viewport as you paint. Powered by Armory engine, ArmorLab is stand-alone software designed for AI-powered texture authoring. Generate PBR materials by drag & dropping your photos. In development! Armory is an open-source 3D game engine with full Blender integration. The engine is currently available in a form of early preview.

GtkGLExt is an OpenGL extension to GTK+. It provides additional GDK objects which support OpenGL rendering in GTK+, and GtkWidget API add-ons to make GTK+ widgets OpenGL-capable.

PyOpenGL is the binding layer between Python and OpenGL.

The Open-Source PyMOL repository has been moved to github: https://github.com/schrodinger/pymol-open-source We still use the pymol-users mailing list here on sourceforge. Please subscribe for community support: https://pymol.org/maillist (Note: SourceForge email newsletter and special offers are optional and can be unchecked) The PyMOL community wiki has its own home: https://pymolwiki.org/

Gaussian Splatting is the official implementation of “3D Gaussian Splatting for Real-Time Radiance Field Rendering,” a research project for reconstructing and rendering 3D scenes from collections of images. The system represents scenes as millions of optimized 3D Gaussians rather than traditional meshes or neural fields, allowing high-quality novel view synthesis with real-time rendering performance. It includes training scripts, rendering tools, scene conversion utilities, and viewers for inspecting generated results. The project is widely used in computer graphics, spatial capture, virtual production, research, and experimental 3D reconstruction workflows. It relies on image-based reconstruction pipelines such as COLMAP to estimate camera positions before optimizing the Gaussian representation. Overall, Gaussian Splatting has become a foundational reference implementation for modern real-time radiance field rendering.

This project is not currently being supported but feel free to use it as an example. delta3d is a robust simulation platform built using open standards and open source software. It features full toolchain development supporting a wide variety of free and commercial software.

UPDATE: Chromium is no longer updated or maintained. The project is frozen. Chromium is a flexible framework for scalable real-time rendering on clusters of workstations, derived from the Stanford WireGL project code base.

The Vizard research community is dedicated to sharing virtual reality projects that are used by behavioral scientists. These projects are developed on the Vizard platform and have been made open-source for anyone to use or modify.

GLE is a library of C functions that draw extruded surfaces, including surfaces of revolution, sweeps, tubes, polycones, polycylinders and helicoids. GLE uses the OpenGL(R) API to perform the actual rendering.

KlayGE is an open source, cross-platform game engine with plugin-based architecture. It provides a framework to make game development, testing, porting as simple as possible.

B-Maxwell add-on offers seamless integration with Maxwell Render and Blender

Free 3D Acropolis is a model 3D in hight resolution of the Acropolis of Athens shortly after its construction.

CorEngine is a work in progress, OpenGL graphics powered 3D game engine designed to help independent game developers with quick prototyping and game/virtual environment creation. The engine supports a standard set of features, like skeletal animation, post processing, Lua/C programming, physics powered by Bullet Physics, GUI and 2D/3D Audio.

The free software for CG Artists RenderBOX is simply a rendering manager. This will help 3D and Compositing artists to track and manage there render sequences.

Affogato is a plugin for Avid's Softimage XSI 3D animation package. It links XSI with high-end 3D renderers. It allows a great level of customization to fit into contemporary VFX pipelines. Currently Affogato only supports RenderMan-compliant renderers.

BacTra Exporter for Blender The Bac/Tra format is common to versions of MascotCapsule, 3D rendering engine released by HI CORPORATION. MascotCapsule is a de facto standard 3D engine for cellular phone handsets.

V-Ray integration to Blender

The Python Computer Graphics Kit is a collection of Python modules that contain the basic types and functions to be able to create 3D computer graphics images (focusing on Pixar's RenderMan interface).

Imprudence is an open source metaverse viewer project based on the Second Life Viewer source. The goal of Imprudence is to greatly improve the usability of the Viewer through community involvement, thoughtful design, modern development methods, and a pro-change atmosphere.

SOLARIS is a graphic adventure created and developing by Blender. The game takes place in the Solaris space station, as is described in the book "Solaris" by Stanislaw Lem and Tarkovsky's film.

XreaL is a heavily improved Quake 3 Arena engine. It's bundled with new tools and a demo game that was never finished. ET:XreaL is a subproject bringing all XreaL enhancements to Return to Castle Wolfenstein: Enemy Territory.