diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/raymath.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/src/raymath.h b/src/raymath.h index 63fc9696..fd9b620a 100644 --- a/src/raymath.h +++ b/src/raymath.h @@ -1271,6 +1271,11 @@ RMDEF Quaternion QuaternionSlerp(Quaternion q1, Quaternion q2, float amount) float cosHalfTheta = q1.x*q2.x + q1.y*q2.y + q1.z*q2.z + q1.w*q2.w; + if (cosHalfTheta < 0) { + q2.x = -q2.x; q2.y = -q2.y; q2.z = -q2.z; q2.w = -q2.w; + cosHalfTheta = -cosHalfTheta; + } + if (fabs(cosHalfTheta) >= 1.0f) result = q1; else if (cosHalfTheta > 0.95f) result = QuaternionNlerp(q1, q2, amount); else |