19 lines
615 B
C#
19 lines
615 B
C#
|
using UnityEngine;
|
|||
|
|
using Unity.Mathematics;
|
|||
|
|
|
|||
|
|
namespace UnityEditor.Splines
|
|||
|
|
{
|
|||
|
|
static class MathUtility
|
|||
|
|
{
|
|||
|
|
public static float GetRollAroundAxis(quaternion q, float3 axis)
|
|||
|
|
{
|
|||
|
|
axis = math.normalize(axis);
|
|||
|
|
var orthoAxis = math.cross(axis, axis.Equals(math.up()) ? math.right() : math.up());
|
|||
|
|
var rotatedOrtho = math.rotate(q, orthoAxis);
|
|||
|
|
var flattened = math.normalize(Vector3.ProjectOnPlane(rotatedOrtho, axis));
|
|||
|
|
var angle = Mathf.Deg2Rad * Vector3.SignedAngle(orthoAxis, flattened, axis);
|
|||
|
|
|
|||
|
|
return angle;
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
}
|