public override void Apply(Frame3f vNextPos, int tid)
{
if (MapSourceF == null)
{
f3.DebugUtil.Log("[VectorDisplacementBaseBrush] .MapSourceF is null!");
return;
}
VectorDisplacement use_map = MapSourceF();
if (use_map == null || use_map.Count != Mesh.MaxVertexID)
{
return;
}
DijkstraGraphDistance dj = Dijkstra;
dj.Reset();
Index3i ti = Mesh.GetTriangle(tid);
Vector3d c = Mesh.GetTriCentroid(tid);
dj.AddSeed(ti.a, (float)Mesh.GetVertex(ti.a).Distance(c));
dj.AddSeed(ti.b, (float)Mesh.GetVertex(ti.b).Distance(c));
dj.AddSeed(ti.c, (float)Mesh.GetVertex(ti.c).Distance(c));
double compute_Dist = MathUtil.SqrtTwo * Radius;
dj.ComputeToMaxDistance((float)compute_Dist);
ApplyCurrentStamp(vNextPos, tid, dj, use_map);
mesh_changed();
}
protected override void ApplyCurrentStamp(Frame3f vCenter, int tid, DijkstraGraphDistance dj, VectorDisplacement map)
{
Vector3d c = Vector3d.Zero, v = Vector3d.Zero, o = vCenter.Origin;
double r = Radius;
List <int> order = dj.GetOrder();
int N = order.Count;
for (int k = 0; k < N; ++k)
{
int vid = order[k];
v = Mesh.GetVertex(vid);
double d = v.Distance(ref o);
double t = MathUtil.Clamp(d / r, 0.0, 1.0);
t = 1 - t * t;
t = t * t * t;
//t = MathUtil.WyvillFalloff01(t);
v = map[vid];
c = Vector3d.Zero; int n = 0;
foreach (int nbrid in Mesh.VtxVerticesItr(vid))
{
c += map[nbrid];
n++;
}
c /= n;
map[vid] = Vector3d.Lerp(ref v, ref c, SmoothPower * t);
}
}
protected override void ApplyCurrentStamp(Frame3f vCenter, int tid, DijkstraGraphDistance dj, VectorDisplacement map)
{
List <int> order = dj.GetOrder();
int N = order.Count;
for (int k = 0; k < N; ++k)
{
int vid = order[k];
double d = (Mesh.GetVertex(vid) - vCenter.Origin).Length;
double t = MathUtil.Clamp(d / Radius, 0.0, 1.0);
t = Power * MathUtil.WyvillFalloff01(t);
map[vid] = Vector3d.Lerp(map[vid], Vector3d.Zero, t);
}
}
protected override void ApplyCurrentStamp(Frame3f vCenter, int tid, DijkstraGraphDistance dj, VectorDisplacement map)
{
Vector3d n = Mesh.GetTriNormal(tid);
List <int> order = dj.GetOrder();
int N = order.Count;
for (int k = 0; k < N; ++k)
{
int vid = order[k];
//double d = dj.GetDistance(vid);
double d = (Mesh.GetVertex(vid) - vCenter.Origin).Length;
double t = MathUtil.Clamp(d / Radius, 0.0, 1.0);
t = MathUtil.WyvillFalloff01(t);
Vector3d offset = Power * t * n;
if (Invert)
{
map[vid] = map[vid] - offset;
}
else
{
map[vid] = map[vid] + offset;
}
}
}
/// <summary> /// Subclass implements this /// </summary> protected abstract void ApplyCurrentStamp(Frame3f vCenter, int tid, DijkstraGraphDistance dj, VectorDisplacement map);