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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 3 maanden geleden
intersect 4b95e710af fixed bug in veqexact 3 maanden geleden
optimizations 5d318b7e08 beginning migration to version 2 4 jaren geleden
.gitignore 8827e68c4b tri/plane clipping 4 jaren geleden
LICENSE fe493e9cf8 point-polygon distance function 2 jaren geleden
README.md 7393055bee Matrix-vector multiplication that preserves /what you want/ when transforming world coordinates into clip space for culling purposes 2 jaren geleden
build.sh fe9395c9bd Mostly finished migration to version 2, filled in many missing functions 4 jaren geleden
c3dlas.c 88eaf75163 vDiv, fixes for matrix and quaternion fns 3 maanden geleden
c3dlas.h 88eaf75163 vDiv, fixes for matrix and quaternion fns 3 maanden geleden
generic_vectors.h 88eaf75163 vDiv, fixes for matrix and quaternion fns 3 maanden geleden
inertia.c 9475019198 Inertial moment functions 1 jaar geleden
inertia.h 9475019198 Inertial moment functions 1 jaar geleden
legacy_migration.sh 5d318b7e08 beginning migration to version 2 4 jaren geleden
matrix3.c 5b8cd715ba missing semicolon and some other fixes 1 jaar geleden
matrix4.c 88eaf75163 vDiv, fixes for matrix and quaternion fns 3 maanden geleden
meshgen.c 7393055bee Matrix-vector multiplication that preserves /what you want/ when transforming world coordinates into clip space for culling purposes 2 jaren geleden
meshgen.h 7393055bee Matrix-vector multiplication that preserves /what you want/ when transforming world coordinates into clip space for culling purposes 2 jaren geleden
quaternion.c 0edc3acace qFromBasis fixed (again) with the BIG note that all such functions should have 3 maanden geleden
short_macros.h e53f9c0dfb make the vector short macro initializers eat trailing commas 7 maanden geleden
test.c 5d318b7e08 beginning migration to version 2 4 jaren geleden

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.