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Linear algebra functions and utilities for 3D rendering in C

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c3dlas
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izzy a2d0b8b780 more rectangle functions vor 6 Tagen
algorithms 558af45f6c 2d line rasterization algorithms designed for searching spatial hashes vor 2 Wochen
intersect a2d0b8b780 more rectangle functions vor 6 Tagen
optimizations 5d318b7e08 beginning migration to version 2 vor 4 Jahren
.gitignore 8827e68c4b tri/plane clipping vor 4 Jahren
LICENSE fe493e9cf8 point-polygon distance function vor 2 Jahren
README.md 7393055bee Matrix-vector multiplication that preserves /what you want/ when transforming world coordinates into clip space for culling purposes vor 2 Jahren
build.sh fe9395c9bd Mostly finished migration to version 2, filled in many missing functions vor 4 Jahren
c3dlas.c c00540838c 2d triangle point and line functions vor 2 Wochen
c3dlas.h a2d0b8b780 more rectangle functions vor 6 Tagen
generic_vectors.h 88eaf75163 vDiv, fixes for matrix and quaternion fns vor 2 Monaten
inertia.c 9475019198 Inertial moment functions vor 1 Jahr
inertia.h 9475019198 Inertial moment functions vor 1 Jahr
legacy_migration.sh 5d318b7e08 beginning migration to version 2 vor 4 Jahren
line.c a2d0b8b780 more rectangle functions vor 6 Tagen
matrix3.c 5b8cd715ba missing semicolon and some other fixes vor 1 Jahr
matrix4.c 17796af1d4 fixed #if vor 1 Monat
meshgen.c 7393055bee Matrix-vector multiplication that preserves /what you want/ when transforming world coordinates into clip space for culling purposes vor 2 Jahren
meshgen.h 7393055bee Matrix-vector multiplication that preserves /what you want/ when transforming world coordinates into clip space for culling purposes vor 2 Jahren
quaternion.c 81a45094c1 new ine/rectangle functions, reorganization of line functions vor 2 Wochen
short_macros.h e53f9c0dfb make the vector short macro initializers eat trailing commas vor 7 Monaten
test.c 5d318b7e08 beginning migration to version 2 vor 4 Jahren

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.