ClosestTriangle

Remarks

docs/plan/41-automatic-retopology.md § D12 interpolates normals, texture coordinates, vertex colours and skin weights from the source mesh at the point a retopologised vertex lands on. A scalar distance cannot do that: the interpolation needs to know which triangle and where on it, which is Triangle and Barycentric.

⚠ Barycentric's three components always sum to one, including when the nearest point is on an edge or a vertex or the triangle has no area. Those are the cases where the interior solution divides by zero, and a transfer that read a NaN weight there would write a NaN normal into the output mesh. Each degenerate region produces its weights directly instead of dividing.

Fields and properties (4)

• public int Triangle

  Which triangle it is, indexed as the caller's indices were, or -1 over an empty tree.

• public Vector3 Point

  The point on that triangle nearest the query, or the query itself when empty.

• public float DistanceSquared

  How far the query was from it, squared, or PositiveInfinity when empty.

• public Vector3 Barycentric

  The weights of the triangle's first, second and third vertex at .

Methods (1)

• public ClosestTriangle(int Triangle, Vector3 Point, float DistanceSquared, Vector3 Barycentric)

  Everything a closest-point query found, rather than only how far away it was.

Used by (7)

• AttributeTransferVixen.Geometry.Remeshing
• DensityFieldVixen.Geometry.Remeshing
• MapBakerVixen.Geometry.Remeshing
• TransferFixturesVixen.Geometry.Remeshing.Tests
• TriangleTreeVixen.Core.Mathematics
• TriangleTreeScaleTestsVixen.Core.Mathematics.Tests
• TriangleTreeTestsVixen.Core.Mathematics.Tests