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Add HMM_RotateV2

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Ben Visness
2023-11-03 11:34:49 -05:00
parent a1c84320f9
commit e210d8729b
4 changed files with 74 additions and 35 deletions
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HandmadeMath.h
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@@ -2527,6 +2527,17 @@ static inline HMM_Quat HMM_QFromAxisAngle_LH(HMM_Vec3 Axis, float Angle)
return HMM_QFromAxisAngle_RH(Axis, -Angle);
}
COVERAGE(HMM_RotateV2, 1)
static inline HMM_Vec2 HMM_RotateV2(HMM_Vec2 V, float Angle)
{
ASSERT_COVERED(HMM_RotateV2)
float sinA = HMM_SinF(Angle);
float cosA = HMM_CosF(Angle);
return HMM_V2(V.X * cosA - V.Y * sinA, V.X * sinA + V.Y * cosA);
}
// implementation from
// https://blog.molecular-matters.com/2013/05/24/a-faster-quaternion-vector-multiplication/
COVERAGE(HMM_RotateV3Q, 1)