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| author | Dan Goodliffe <dan@randomdan.homeip.net> | 2023-12-02 12:23:52 +0000 |
|---|---|---|
| committer | Dan Goodliffe <dan@randomdan.homeip.net> | 2023-12-02 12:23:52 +0000 |
| commit | 0a5d23ce263551bab3759e4ac65ecb6cfebdc892 (patch) | |
| tree | 0b5d6d9a1ff47e5d59d3e6de0f83349c084ade15 | |
| parent | Restore some trees (diff) | |
| download | ilt-0a5d23ce263551bab3759e4ac65ecb6cfebdc892.tar.bz2 ilt-0a5d23ce263551bab3759e4ac65ecb6cfebdc892.tar.xz ilt-0a5d23ce263551bab3759e4ac65ecb6cfebdc892.zip | |
Add crossInt - cross product for integer vectors
| -rw-r--r-- | lib/maths.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/lib/maths.h b/lib/maths.h index 67b2a15..cf369a7 100644 --- a/lib/maths.h +++ b/lib/maths.h @@ -67,6 +67,17 @@ sq(T v) return v * v; } +template<std::integral T, glm::qualifier Q> +inline constexpr glm::vec<3, T, Q> +crossInt(const glm::vec<3, T, Q> a, const glm::vec<3, T, Q> b) +{ + return { + (a.y * b.z) - (a.z * b.y), + (a.z * b.x) - (a.x * b.z), + (a.x * b.y) - (a.y * b.x), + }; +} + template<typename R = float, typename Ta, typename Tb> inline constexpr auto ratio(Ta a, Tb b) |