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-rw-r--r--src/math/Quaternion.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/src/math/Quaternion.h b/src/math/Quaternion.h
index a5a34626..47c94f7c 100644
--- a/src/math/Quaternion.h
+++ b/src/math/Quaternion.h
@@ -12,6 +12,11 @@ public:
float MagnitudeSqr(void) const { return x*x + y*y + z*z + w*w; }
void Normalise(void);
void Multiply(const CQuaternion &q1, const CQuaternion &q2);
+ void Invert(void){ // Conjugate would have been a better name
+ x = -x;
+ y = -y;
+ z = -z;
+ }
const CQuaternion &operator+=(CQuaternion const &right) {
x += right.x;