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Linear algebra functions and utilities for 3D rendering in C

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c3dlas
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fractal b52e44cd97 test pcg functions, clearer pcg_init logic 1 week geleden
algorithms 558af45f6c 2d line rasterization algorithms designed for searching spatial hashes 4 maanden geleden
intersect 73428f7bbb quad/point intersection 1 maand geleden
optimizations 5d318b7e08 beginning migration to version 2 4 jaren geleden
.gitignore 8827e68c4b tri/plane clipping 5 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 b52e44cd97 test pcg functions, clearer pcg_init logic 1 week geleden
c3dlas.c b52e44cd97 test pcg functions, clearer pcg_init logic 1 week geleden
c3dlas.h b52e44cd97 test pcg functions, clearer pcg_init logic 1 week geleden
generic_vectors.h 88eaf75163 vDiv, fixes for matrix and quaternion fns 6 maanden geleden
inertia.c 9475019198 Inertial moment functions 2 jaren geleden
inertia.h 9475019198 Inertial moment functions 2 jaren geleden
legacy_migration.sh 5d318b7e08 beginning migration to version 2 4 jaren geleden
line.c 6554cc3f7b fixed linelineline2 function 2 maanden geleden
matrix3.c 5b8cd715ba missing semicolon and some other fixes 2 jaren geleden
matrix4.c 17796af1d4 fixed #if 4 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
quad.c 73428f7bbb quad/point intersection 1 maand geleden
quaternion.c 81a45094c1 new ine/rectangle functions, reorganization of line functions 4 maanden geleden
short_macros.h e53f9c0dfb make the vector short macro initializers eat trailing commas 10 maanden geleden
test.c b52e44cd97 test pcg functions, clearer pcg_init logic 1 week geleden
test.sh b52e44cd97 test pcg functions, clearer pcg_init logic 1 week 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.