Linear algebra functions and utilities for 3D rendering in C

izzy 81a45094c1 new ine/rectangle functions, reorganization of line functions 16 ore fa
algorithms 558af45f6c 2d line rasterization algorithms designed for searching spatial hashes 2 giorni fa
intersect 81a45094c1 new ine/rectangle functions, reorganization of line functions 16 ore fa
optimizations 5d318b7e08 beginning migration to version 2 4 anni fa
.gitignore 8827e68c4b tri/plane clipping 4 anni fa
LICENSE fe493e9cf8 point-polygon distance function 2 anni fa
README.md 7393055bee Matrix-vector multiplication that preserves /what you want/ when transforming world coordinates into clip space for culling purposes 2 anni fa
build.sh fe9395c9bd Mostly finished migration to version 2, filled in many missing functions 4 anni fa
c3dlas.c 81a45094c1 new ine/rectangle functions, reorganization of line functions 16 ore fa
c3dlas.h 81a45094c1 new ine/rectangle functions, reorganization of line functions 16 ore fa
generic_vectors.h 88eaf75163 vDiv, fixes for matrix and quaternion fns 2 mesi fa
inertia.c 9475019198 Inertial moment functions 1 anno fa
inertia.h 9475019198 Inertial moment functions 1 anno fa
legacy_migration.sh 5d318b7e08 beginning migration to version 2 4 anni fa
line.c 81a45094c1 new ine/rectangle functions, reorganization of line functions 16 ore fa
matrix3.c 5b8cd715ba missing semicolon and some other fixes 1 anno fa
matrix4.c 17796af1d4 fixed #if 1 settimana fa
meshgen.c 7393055bee Matrix-vector multiplication that preserves /what you want/ when transforming world coordinates into clip space for culling purposes 2 anni fa
meshgen.h 7393055bee Matrix-vector multiplication that preserves /what you want/ when transforming world coordinates into clip space for culling purposes 2 anni fa
quaternion.c 81a45094c1 new ine/rectangle functions, reorganization of line functions 16 ore fa
short_macros.h e53f9c0dfb make the vector short macro initializers eat trailing commas 6 mesi fa
test.c 5d318b7e08 beginning migration to version 2 4 anni fa

README.md

c3dlas

Linear algebra functions and utilities for 3D rendering in C

This library exists because I couldn't find an MIT/BSD licensed C library for doing the math required in a OpenGL program. It's not optimized, extensive, or sophisticated. It is free and written in pure C.

C++ has become fat and ugly with age. Not that it was a 9 to start with...

ATLAS/CBLAS are an incomprehensible mess.

GPL, while a wonderful thing, is a bit heavy-handed for some basic math functions.

I firmly believe that such a library did not exist because most of the functionality was built in to older OpenGL versions. By the time OpenGL 3.3 came out most developers had converted to worshiping under the altar of OOP.

There are probably math bugs somewhere. If you find one, report it on github. Preferably include how to fix it to make my life easier.