protected virtual DMesh3 compute_standard()
{
DMesh3 sourceMesh = MeshSource.GetDMeshUnsafe();
ISpatial sourceSpatial = MeshSource.GetSpatial();
DMesh3 meshIn = new DMesh3(sourceMesh);
RemesherPro remesh = new RemesherPro(meshIn);
//Remesher remesh = new Remesher(meshIn);
remesh.SetTargetEdgeLength(TargetEdgeLength);
remesh.PreventNormalFlips = this.PreventNormalFlips;
remesh.EnableFlips = this.EnableFlips;
remesh.EnableSplits = this.EnableSplits;
remesh.EnableCollapses = this.EnableCollapses;
remesh.EnableSmoothing = this.EnableSmoothing;
remesh.SmoothSpeedT = this.SmoothingSpeed;
if (ReprojectToInput)
{
MeshProjectionTarget target = new MeshProjectionTarget(sourceMesh, sourceSpatial);
remesh.SetProjectionTarget(target);
}
// if we are preserving creases, this will also automatically constrain boundary
// edges boundary loops/spans.
if (preserve_creases)
{
if (remesh.Constraints == null)
{
remesh.SetExternalConstraints(new MeshConstraints());
}
MeshTopology topo = new MeshTopology(meshIn);
topo.CreaseAngle = this.CreaseAngle;
topo.AddRemeshConstraints(remesh.Constraints);
// replace boundary edge constraints if we want other behaviors
if (BoundaryMode == BoundaryModes.FixedBoundaries)
{
MeshConstraintUtil.FixEdges(remesh.Constraints, meshIn, topo.BoundaryEdges);
}
}
else if (sourceMesh.CachedIsClosed == false)
{
if (remesh.Constraints == null)
{
remesh.SetExternalConstraints(new MeshConstraints());
}
if (BoundaryMode == BoundaryModes.FreeBoundaries)
{
MeshConstraintUtil.PreserveBoundaryLoops(remesh.Constraints, meshIn);
}
else if (BoundaryMode == BoundaryModes.FixedBoundaries)
{
MeshConstraintUtil.FixAllBoundaryEdges(remesh.Constraints, meshIn);
}
else if (BoundaryMode == BoundaryModes.ConstrainedBoundaries)
{
MeshConstraintUtil.FixAllBoundaryEdges_AllowSplit(remesh.Constraints, meshIn, 0);
}
}
remesh.Progress = new ProgressCancel(is_invalidated);
remesh.FastestRemesh(RemeshRounds, true);
//for (int k = 0; k < RemeshRounds; ++k)
// remesh.BasicRemeshPass();
// free boundary remesh can leave sliver triangles around the border. clean that up.
if (sourceMesh.CachedIsClosed == false && BoundaryMode == BoundaryModes.FreeBoundaries)
{
MeshEditor.RemoveFinTriangles(meshIn, (mesh, tid) => {
Index3i tv = mesh.GetTriangle(tid);
return(MathUtil.AspectRatio(mesh.GetVertex(tv.a), mesh.GetVertex(tv.b), mesh.GetVertex(tv.c)) > 2);
});
}
if (is_invalidated())
{
return(null);
}
return(meshIn);
}