From 1d8d7c04786ab3964778e6f21fae145f661bb533 Mon Sep 17 00:00:00 2001
From: omniscient <17525998+omnisci3nce@users.noreply.github.com>
Date: Thu, 4 Apr 2024 19:45:19 +1100
Subject: loading textures

---
 src/maths/maths.h | 12 ++++++++++++
 1 file changed, 12 insertions(+)

(limited to 'src/maths/maths.h')

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() {
-- 
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