private void OnSceneGUI()
{
if (!_active)
{
return;
}
if (Event.current.type == EventType.Repaint && _idx >= 0)
{
Handles.color = Color.red;
Handles.matrix = Matrix4x4.identity;
Handles.CubeHandleCap(0, _pos, Quaternion.identity, 0.01f, EventType.Repaint);
Handles.Label(_pos + new Vector3(0, 0.02f, 0), string.Format("Vertex ID {0}, World Position {1} Model Position {2}", _idx, _pos.ToString("F"), _vtx.ToString("F")));
Handles.Label(_pos + new Vector3(0, 0.01f, 0), string.Format("BoneWeights ({0}:{1}),({2}:{3}),({4}:{5}),({6}:{7})", _bws.boneIndex0, _bws.weight0, _bws.boneIndex1, _bws.weight1, _bws.boneIndex2, _bws.weight2, _bws.boneIndex3, _bws.weight3));
}
Selection.activeTransform = _selectedTransform;
if (Event.current != null && Event.current.type == EventType.MouseDown && Tools.current == Tool.Move)
{
Transform trans = Selection.activeTransform;
if (trans != null)
{
SkinnedMeshRenderer smr;
MeshRenderer mr;
if (null != (smr = trans.GetComponent <SkinnedMeshRenderer>()))
{
float minIntersectDistance = float.MaxValue;
int minIntersectVertexIndex = -1;
Vector3 minIntersectPosition = Vector3.zero;
Ray ray = HandleUtility.GUIPointToWorldRay(Event.current.mousePosition);
Bounds bb = smr.bounds;
if (bb.IntersectRay(ray))
{
Mesh mesh = smr.sharedMesh;
Vector3[] vertices = mesh.vertices;
for (int s = 0, smax = mesh.subMeshCount; s < smax; s++)
{
int[] triangles = mesh.GetTriangles(s);
for (int t = 0, tmax = triangles.Length / 3; t < tmax; t++)
{
int i0 = triangles[t * 3];
int i1 = triangles[t * 3 + 1];
int i2 = triangles[t * 3 + 2];
Vector3 v0 = smr.GetSkinnedVertexWS(i0);
Vector3 v1 = smr.GetSkinnedVertexWS(i1);
Vector3 v2 = smr.GetSkinnedVertexWS(i2);
Vector3 ip;
if (!ray.CheckIntersect(v0, v1, v2, out ip, ref minIntersectDistance))
{
continue;
}
switch (GetNearestPoint(v0, v1, v2, ip))
{
case 0:
minIntersectVertexIndex = i0;
minIntersectPosition = v0;
break;
case 1:
minIntersectVertexIndex = i1;
minIntersectPosition = v1;
break;
case 2:
default:
minIntersectVertexIndex = i2;
minIntersectPosition = v2;
break;
}
}
}
if (minIntersectVertexIndex >= 0)
{
_pos = minIntersectPosition;
_idx = minIntersectVertexIndex;
_vtx = vertices[minIntersectVertexIndex];
_bws = mesh.boneWeights[minIntersectVertexIndex];
}
}
}
else if (null != (mr = trans.GetComponent <MeshRenderer>()))
{
float minIntersectDistance = float.MaxValue;
int minIntersectVertexIndex = -1;
Vector3 minIntersectPosition = Vector3.zero;
Ray ray = HandleUtility.GUIPointToWorldRay(Event.current.mousePosition);
Bounds bb = mr.bounds;
if (bb.IntersectRay(ray))
{
Matrix4x4 w2m = mr.worldToLocalMatrix;
Matrix4x4 m2w = mr.localToWorldMatrix;
Ray localRay = new Ray(w2m.MultiplyPoint3x4(ray.origin), w2m.MultiplyVector(ray.direction));
MeshFilter mf = mr.GetComponent <MeshFilter>();
Mesh mesh = mf.sharedMesh;
Vector3[] vertices = mesh.vertices;
for (int s = 0, smax = mesh.subMeshCount; s < smax; s++)
{
int[] triangles = mesh.GetTriangles(s);
for (int t = 0, tmax = triangles.Length / 3; t < tmax; t++)
{
int i0 = triangles[t * 3];
int i1 = triangles[t * 3 + 1];
int i2 = triangles[t * 3 + 2];
Vector3 v0 = vertices[i0];
Vector3 v1 = vertices[i1];
Vector3 v2 = vertices[i2];
Vector3 ip;
if (!localRay.CheckIntersect(v0, v1, v2, out ip, ref minIntersectDistance))
{
continue;
}
switch (GetNearestPoint(v0, v1, v2, ip))
{
case 0:
minIntersectVertexIndex = i0;
minIntersectPosition = v0;
break;
case 1:
minIntersectVertexIndex = i1;
minIntersectPosition = v1;
break;
case 2:
default:
minIntersectVertexIndex = i2;
minIntersectPosition = v2;
break;
}
}
}
if (minIntersectVertexIndex >= 0)
{
_pos = m2w.MultiplyPoint3x4(minIntersectPosition);
_idx = minIntersectVertexIndex;
_vtx = vertices[minIntersectVertexIndex];
}
}
}
}
}
#if DEBUG_VERTEX_SELECTOR
if (_idx >= 0)
{
Shader.SetGlobalColor("SelectedColor", Color.red);
Shader.SetGlobalInt("SelectedVid", _idx);
}
#endif
}
