protected override void ShowTwistAngles()
{
if (m_deformer == null)
{
base.ShowTwistAngles();
return;
}
Handles.color = Color.green;
int steps = GetStepsPerCurve();
if (steps <= 0)
{
steps = 1;
}
else if (steps > 5)
{
steps = 5;
}
ScaffoldWrapper[] scaffolds = m_deformer.Scaffolds;
for (int i = 0; i < scaffolds.Length; ++i)
{
ScaffoldWrapper scaffold = m_deformer.Scaffolds[i];
for (int ci = 0; ci < scaffold.CurveIndices.Length; ++ci)
{
int curveIndex = scaffold.CurveIndices[ci];
for (int j = 0; j <= steps; j++)
{
float t = (float)j / steps;
Vector3 dir = m_deformer.GetDirection(t, curveIndex);
Vector3 point = m_deformer.GetPoint(t, curveIndex);
if (scaffold.IsRigid)
{
t = 1.0f;
}
float twistAngle = m_deformer.GetTwist(t, curveIndex);
Vector3 v3;
Vector3 up = GetUpVector();
if (Mathf.Abs(Vector3.Dot(dir, up)) < 1.0f)
{
v3 = Vector3.Cross(dir, up).normalized;
}
else
{
v3 = Vector3.Cross(dir, GetSideVector()).normalized;
}
if (dir == Vector3.zero)
{
continue;
}
Handles.DrawLine(point, point + Quaternion.AngleAxis(twistAngle, dir) * Quaternion.LookRotation(v3, up) * Vector3.forward * TwistAngleScale);
}
}
}
}
private Vector3[] Deform(Slice[] slices, Mesh mesh, MeshDeformer deformer, bool isRigid)
{
Vector3[] vertices = mesh.vertices;
for (int s = 0; s < slices.Length; ++s)
{
Slice slice = slices[s];
Vector3 center = deformer.GetPoint(slice.T, slice.CurveIndex);
center = deformer.transform.InverseTransformPoint(center);
Vector3 dir = deformer.transform.InverseTransformVector(deformer.GetDirection(slice.T, slice.CurveIndex));
float t = slice.T;
if (isRigid)
{
t = 1.0f;
}
if (dir == Vector3.zero)
{
continue;
}
float twistAngle = deformer.GetTwist(t, slice.CurveIndex);
Vector3 thickness = deformer.GetThickness(t, slice.CurveIndex);
float wrapCurvature = deformer.GetWrap(t, slice.CurveIndex);
Quaternion rotation = Quaternion.AngleAxis(twistAngle, dir) * Quaternion.LookRotation(dir, m_up) * m_axisRotation;
Matrix4x4 matrix = Matrix4x4.TRS(center, rotation, Vector3.one);
int[] indices = slice.Indices;
for (int i = 0; i < indices.Length; ++i)
{
int index = indices[i];
Vector3 vertex = vertices[index];
vertex = AxisTransform(deformer, vertex, slice.Center, thickness);
vertex = WrapAroundAxisTransform(deformer, vertex, slice.Center, wrapCurvature);
vertex = matrix.MultiplyPoint(vertex);
vertices[index] = vertex;
}
}
return(vertices);
}