public static void ReverseSplineQuaternionTest(float3 source)
{
source = math.normalize(source);
var upVector = new float3(0f, 1f, 0f);
var forward = quaternion.LookRotation(source, upVector);
var reverseCheck = quaternion.LookRotation(-source, upVector);
var reverse = SplineUtility.ReverseSplineQuaternion(forward);
var p1 = math.normalize(new float3(1f, 1f, 1f));
var p2 = math.normalize(new float3(-1f, -1f, -1f));
Assert.True(Utilities.GeometryUtility.ApproximatelyEqual(
math.mul(reverseCheck, p1), math.mul(reverse, p1)));
Assert.True(Utilities.GeometryUtility.ApproximatelyEqual(
math.mul(reverseCheck, p2), math.mul(reverse, p2)));
}