Top 11 C software-rendering Projects

herebedragons

0 1,715 7.3 C

A basic 3D scene implemented with various engines, frameworks or APIs.
PortableGL

7 922 9.0 C

An implementation of OpenGL 3.x-ish in clean C
InfluxDB

www.influxdata.com sponsored

Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.
NTSC-CRT

11 420 7.2 C

NTSC encoding/decoding in C89 using only integers and fixed point math. Supports NES decoding. Can be used as an image filter for games or real-time applications.
Watch_Quake

10 301 6.8 C

Quake 1 port for Apple Watch
PAL-CRT

7 73 6.2 C

PAL encoding/decoding in C89 using only integers and fixed point math. Supports NES decoding. Can be used as an image filter for games or real-time applications.

Project mention: Cathode-Retro: A collection of shaders to emulate the display of an NTSC signal | news.ycombinator.com | 2023-11-13

TomentRaycaster

3 50 3.9 C

A Software Rendering Raycaster Engine written in C and SDL2.
Watch_Quake2

2 48 6.3 C

Quake 2 port for Apple Watch

Project mention: Quake 2 port for Apple Watch | /r/quake | 2023-09-05

WorkOS

workos.com sponsored

The modern identity platform for B2B SaaS. The APIs are flexible and easy-to-use, supporting authentication, user identity, and complex enterprise features like SSO and SCIM provisioning.
sr

2 44 5.0 C

3D software rendering library in C (by taurreco)
eradicate

1 25 6.7 C

Futuristic arcade racing game for DOS
TomentOnline

2 9 7.6 C

A Software Rendering Raycaster Engine with multiplayer written in C and SDL2.

Project mention: I've just finished to upgrade my raycaster game engine, adding multiplayer and more! Written from scratch in C and SDL2. GitHub in the comments :) | /r/C_Programming | 2023-05-09

rototiller

1 6 9.4 C

Collection of software-rendered realtime graphics compositions, see https://rototiller.pengaru.com. Github is only a mirror.

Project mention: What I've learned about flow fields so far | news.ycombinator.com | 2024-01-02

I implemented a something similar[0] a while back in rototiller[1], there's a short low-res youtube clip here[2].
It was a fun little hack, I didn't realize this is a thing. I was just messing around with an idea of pushing particles through a cube of tri-linearly interpolated direction vectors, without simulating any actual physics like mass/friction/fluids or anything like that.
Something which surprised me was during development I just populated the cube of vectors with randomized vectors, fully expecting I'd have to do something more intentional and clever before it was interesting to watch. But the emergent structure of the flow paths even with the pseudo-random vectors was surprisingly interesting and I just left it at that, with the addition of a second randomized field the direction vectors would be interpolated between in a ping-pong manner. When one field is dominant, it re-randomized the other, resulting in a continuously-looking evolving field...
[0] https://github.com/vcaputo/rototiller/blob/master/src/module...
[1] https://github.com/vcaputo/rototiller/tree/master
[2] https://www.youtube.com/watch?v=-q2Yq2fHedw

NOTE: The open source projects on this list are ordered by number of github stars. The number of mentions indicates repo mentiontions in the last 12 Months or since we started tracking (Dec 2020).