Description:
appleseed is an open source, physically-based global illumination rendering engine primarily designed for animation and visual effects.
Free Software Directory
Radiance
Description:
Radiance is a validated lighting simulation tool for architectural daylighting and scene rendering, enabling physically accurate lighting analysis and visualization.
renderer (TTSIOD renderer)
Description:
A software-only 3D renderer and raytracer demonstrating core graphics techniques including 3D transformations, Phong shading, Z-buffering, shadow maps, and ray tracing with multi-core support via OpenMP/TBB. Supports .3ds, .tri, and .ply formats and uses SDL for portability.
Mitsuba 3
Description:
Mitsuba 3 is a research-oriented, retargetable renderer in portable C++17 with plugin-based materials and lights, supporting variants via LLVM or CUDA, and targeting forward and inverse rendering.
Heretic2R
Description:
Reverse-engineered source port of Heretic II (1998) with widescreen support, improved loading, and rendering framerate enhancements.
Starter Kit Racing
Description:
Starter kit template for Godot 4.6 racing games, featuring arcade-style vehicle controls, smoke effects, GridMap-based track creation, and CC0-licensed 3D models and sounds.
EmDash
Description:
EmDash is a full-stack, TypeScript CMS built on Astro and Cloudflare. It features sandboxed plugins, a portable content model (Portable Text/JSON), a visual admin UI, REST API, and AI-assisted tooling. It runs on Cloudflare Workers or Node.js, and aims to be a modern WordPress alternative with a plugin ecosystem.
Luan
Description:
Luan is a Lua-like programming language implemented in Java for the JVM, with Lua compatibility and JVM tooling.
MicroTD
Description:
MicroTD is a tiny, public-domain tower-defense game built with the SAF engine. It runs at 64×64 resolution with 256 colors, optimized for portability and low hardware demands. The game features 8 upgradable towers, 11 enemy types, and 6 maps for compact, accessible play.
ft2-clone
Description:
Fasttracker II clone for Windows/macOS/Linux. A cross‑platform FT2 reimplementation with enhanced sampler loading (AIFF/FLAC/OGG/MP3), improved floating‑point mixer, new sample editor features, and drag‑and‑drop workflow; BSD-3-Clause licensed code base.