manifold and normal index with minimum sharp angle
manifold with calculated normals
Curvature is the inverse of the radius of curvature, and signed such that positive is convex and negative is concave. There are two orthogonal principal curvatures at any point on a manifold, with one maximum and the other minimum. Gaussian curvature is their product, while mean curvature is their sum. This approximates them for every vertex and assigns them as vertex properties on the given channels.
manifold and gaussian and mean index
manifold with calculated curvature
Increase the density of the mesh by splitting each edge into pieces such that any point on the resulting triangles is roughly within tolerance of the smoothly curved surface defined by the tangent vectors. This means tightly curving regions will be divided more finely than smoother regions. If halfedgeTangents are not present, the result will simply be a copy of the original. Quads will ignore their interior triangle bisector.
manifold and tolerance
refined manifold
Increase the density of the mesh by splitting each edge into pieces of roughly the input length. Interior verts are added to keep the rest of the triangulation edges also of roughly the same length. If halfedgeTangents are present (e.g. from the Smooth() constructor), the new vertices will be moved to the interpolated surface according to their barycentric coordinates.
manifold and length
refined manifold
Increase the density of the mesh by splitting every edge into n pieces. For instance, with n = 2, each triangle will be split into 4 triangles. These will all be coplanar (and will not be immediately collapsed) unless the Mesh/Manifold has halfedgeTangents specified (e.g. from the Smooth() constructor), in which case the new vertices will be moved to the interpolated surface according to their barycentric coordinates.
manifold and count
refined manifold
Smooths out the Manifold by filling in the halfedgeTangent vectors. The geometry will remain unchanged until Refine or RefineToLength is called to interpolate the surface. This version uses the geometry of the triangles and pseudo-normals to define the tangent vectors.
manifold and minimum sharp angle and minimum smoothness
smoothed manifold
Smooths out the Manifold by filling in the halfedgeTangent vectors. The geometry will remain unchanged until Refine or RefineToLength is called to interpolate the surface. This version uses the supplied vertex normal properties to define the tangent vectors.
manifold and normal index
smoothed manifold
Return a copy of the manifold simplified to the given tolerance, but with its actual tolerance value unchanged. The result will contain a subset of the original verts and all surfaces will have moved by less than tolerance.
manifold and tolerance
simplified manifold
Create a new copy of this manifold with updated vertex properties by supplying a function that takes the existing position and properties as input. You may specify any number of output properties, allowing creation and removal of channels. Note: undefined behavior will result if you read past the number of input properties or write past the number of output properties.
manifold, numProp and property function
manifold with updated properties
Return a copy of the manifold with the set tolerance value. This performs mesh simplification when the tolerance value is increased.
manifold and tolerance
manifold with new tolerance
Returns the first of n sequential new unique mesh IDs for marking sets of triangles that can be looked up after further operations. Assign to Mesh.runOriginalID vector.
count
void
If you copy a manifold, but you want this new copy to have new properties (e.g. a different UV mapping), you can reset its IDs to a new original, meaning it will now be referenced by its descendants instead of the meshes it was built from, allowing you to differentiate the copies when applying your properties to the final result.
This function also condenses all coplanar faces in the relation, and collapses those edges. If you want to have inconsistent properties across these faces, meaning you want to preserve some of these edges, you should instead call GetMesh(), calculate your properties and use these to construct a new manifold.
manifold
original manifold
Constructs a new manifold from a list of other manifolds. This is a purely topological operation, so care should be taken to avoid creating overlapping results. It is the inverse operation of Decompose().
manifold shapes
composed manifold
This operation returns a vector of Manifolds that are topologically disconnected. If everything is connected, the vector is length one, containing a copy of the original. It is the inverse operation of Compose().
manifold
decomposed manifold shapes
Returns the cross section of this object parallel to the X-Y plane at the specified height. Using a height equal to the bottom of the bounding box will return the bottom faces, while using a height equal to the top of the bounding box will return empty.
manifold and height
sliced cross section
Creates a projection on xy plane from the shape outline
manifold
projected cross section
Computes convex hull of the manifold shape provided
two shapes
hulled manifold shape
Hull points or manifolds
manifold
manifold
Fills in vertex properties for normal vectors, calculated from the mesh geometry. Flat faces composed of three or more triangles will remain flat.