trueform engine.

The STL for geometry. Fast and exact mesh booleans, spatial queries, arrangements, and remeshing. Easy to use, robust on real-world data.

C++PythonTypeScriptWASM

Why trueform

Simple code just works. Zero-copy views in C++, NumPy arrays in Python, vectorized NDArrays in the browser. Same engine underneath.

Exact predicates and canonical topology. Handles non-manifold flaps, inconsistent winding, coplanar faces, and pipeline artifacts.

Interactive speed on million-polygon meshes. Benchmarked against MeshLib, VTK, CGAL, libigl, Coal, FCL, and nanoflann.

Spatial trees for collision, distance, ray casting, and k-NN. Connectivity analysis, boundaries, and connected components.

Fast mesh boolean operations, multi-mesh arrangements, and self-intersection resolution. Exact predicates with canonical topology.

Fast mesh decimation and isotropic remeshing. Point cloud alignment with ICP, OBB fitting, and rigid registration.

Performance

Fastest geometry processing library available.

From mesh booleans to remeshing.

28msBoolean union2×1M faces · 84× vs CGAL

7.7msICP registration1M points · 93× vs libigl

78msSelf-intersection1M faces · 37× vs libigl

3.8msIsocontours1M, 16 cuts · 38× vs VTK

72msDecimation 50%1M faces · 50× vs CGAL

25msPrincipal curvatures1M faces · 55× vs libigl

Integration

auto [result, labels, face_labels] =
 tf::make_boolean(mesh0, mesh1, tf::boolean_op::merge);

(faces, points), labels, face_labels =
  tf.boolean_union(mesh0, mesh1)

const { mesh, labels, faceLabels } =
  await tf.async.booleanUnion(mesh0, mesh1);

Research

The algorithms behind the engine — exact arithmetic, spatial hierarchies, robust topology — published and continuously updated.

If the core geometry loop is the main risk, start here.