diff options
| author | omniscient <17525998+omnisci3nce@users.noreply.github.com> | 2024-04-04 19:45:19 +1100 |
|---|---|---|
| committer | omniscient <17525998+omnisci3nce@users.noreply.github.com> | 2024-04-04 19:45:19 +1100 |
| commit | 1d8d7c04786ab3964778e6f21fae145f661bb533 (patch) | |
| tree | b44802d6ca41804e7b104cdd05c05a96a039ad7c /src/maths/maths.h | |
| parent | 0c770ecad71bb540d36402311e01a2b6b94242fd (diff) | |
loading textures
Diffstat (limited to 'src/maths/maths.h')
| -rw-r--r-- | src/maths/maths.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/src/maths/maths.h b/src/maths/maths.h index d832739..95ced1d 100644 --- a/src/maths/maths.h +++ b/src/maths/maths.h @@ -66,6 +66,18 @@ static inline quat quat_normalise(quat a) { static inline quat quat_ident() { return (quat){ .x = 0.0, .y = 0.0, .z = 0.0, .w = 1.0 }; } +static quat quat_from_axis_angle(vec3 axis, f32 angle, bool normalize) { + const f32 half_angle = 0.5f * angle; + f32 s = sinf(half_angle); + f32 c = cosf(half_angle); + + quat q = (quat){s * axis.x, s * axis.y, s * axis.z, c}; + if (normalize) { + return quat_normalise(q); + } + return q; +} + // --- Matrix Implementations static inline mat4 mat4_ident() { |