1 files changed, 58 insertions, 0 deletions
diff --git a/src/include/glm/gtx/rotate_normalized_axis.inl b/src/include/glm/gtx/rotate_normalized_axis.inl
new file mode 100644
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--- /dev/null
+++ b/src/include/glm/gtx/rotate_normalized_axis.inl
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+/// @ref gtx_rotate_normalized_axis
+
+namespace glm
+{
+	template<typename T, qualifier Q>
+	GLM_FUNC_QUALIFIER mat<4, 4, T, Q> rotateNormalizedAxis
+	(
+		mat<4, 4, T, Q> const& m,
+		T const& angle,
+		vec<3, T, Q> const& v
+	)
+	{
+		T const a = angle;
+		T const c = cos(a);
+		T const s = sin(a);
+
+		vec<3, T, Q> const axis(v);
+
+		vec<3, T, Q> const temp((static_cast<T>(1) - c) * axis);
+
+		mat<4, 4, T, Q> Rotate;
+		Rotate[0][0] = c + temp[0] * axis[0];
+		Rotate[0][1] = 0 + temp[0] * axis[1] + s * axis[2];
+		Rotate[0][2] = 0 + temp[0] * axis[2] - s * axis[1];
+
+		Rotate[1][0] = 0 + temp[1] * axis[0] - s * axis[2];
+		Rotate[1][1] = c + temp[1] * axis[1];
+		Rotate[1][2] = 0 + temp[1] * axis[2] + s * axis[0];
+
+		Rotate[2][0] = 0 + temp[2] * axis[0] + s * axis[1];
+		Rotate[2][1] = 0 + temp[2] * axis[1] - s * axis[0];
+		Rotate[2][2] = c + temp[2] * axis[2];
+
+		mat<4, 4, T, Q> Result;
+		Result[0] = m[0] * Rotate[0][0] + m[1] * Rotate[0][1] + m[2] * Rotate[0][2];
+		Result[1] = m[0] * Rotate[1][0] + m[1] * Rotate[1][1] + m[2] * Rotate[1][2];
+		Result[2] = m[0] * Rotate[2][0] + m[1] * Rotate[2][1] + m[2] * Rotate[2][2];
+		Result[3] = m[3];
+		return Result;
+	}
+
+	template<typename T, qualifier Q>
+	GLM_FUNC_QUALIFIER qua<T, Q> rotateNormalizedAxis
+	(
+		qua<T, Q> const& q,
+		T const& angle,
+		vec<3, T, Q> const& v
+	)
+	{
+		vec<3, T, Q> const Tmp(v);
+
+		T const AngleRad(angle);
+		T const Sin = sin(AngleRad * T(0.5));
+
+		return q * qua<T, Q>(cos(AngleRad * static_cast<T>(0.5)), Tmp.x * Sin, Tmp.y * Sin, Tmp.z * Sin);
+		//return gtc::quaternion::cross(q, tquat<T, Q>(cos(AngleRad * T(0.5)), Tmp.x * fSin, Tmp.y * fSin, Tmp.z * fSin));
+	}
+}//namespace glm