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Linear algebra functions and utilities for 3D rendering in C

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c3dlas
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izzy 0edc3acace qFromBasis fixed (again) with the BIG note that all such functions should have 1 päivä sitten
intersect 4b95e710af fixed bug in veqexact 2 viikkoa sitten
optimizations 5d318b7e08 beginning migration to version 2 4 vuotta sitten
.gitignore 8827e68c4b tri/plane clipping 4 vuotta sitten
LICENSE fe493e9cf8 point-polygon distance function 2 vuotta sitten
README.md 7393055bee Matrix-vector multiplication that preserves /what you want/ when transforming world coordinates into clip space for culling purposes 2 vuotta sitten
build.sh fe9395c9bd Mostly finished migration to version 2, filled in many missing functions 4 vuotta sitten
c3dlas.c 88eaf75163 vDiv, fixes for matrix and quaternion fns 3 päivää sitten
c3dlas.h 88eaf75163 vDiv, fixes for matrix and quaternion fns 3 päivää sitten
generic_vectors.h 88eaf75163 vDiv, fixes for matrix and quaternion fns 3 päivää sitten
inertia.c 9475019198 Inertial moment functions 1 vuosi sitten
inertia.h 9475019198 Inertial moment functions 1 vuosi sitten
legacy_migration.sh 5d318b7e08 beginning migration to version 2 4 vuotta sitten
matrix3.c 5b8cd715ba missing semicolon and some other fixes 1 vuosi sitten
matrix4.c 88eaf75163 vDiv, fixes for matrix and quaternion fns 3 päivää sitten
meshgen.c 7393055bee Matrix-vector multiplication that preserves /what you want/ when transforming world coordinates into clip space for culling purposes 2 vuotta sitten
meshgen.h 7393055bee Matrix-vector multiplication that preserves /what you want/ when transforming world coordinates into clip space for culling purposes 2 vuotta sitten
quaternion.c 0edc3acace qFromBasis fixed (again) with the BIG note that all such functions should have 1 päivä sitten
short_macros.h e53f9c0dfb make the vector short macro initializers eat trailing commas 4 kuukautta sitten
test.c 5d318b7e08 beginning migration to version 2 4 vuotta sitten

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.