Module implicit 

Implicit surfaces and signed distance fields (SDF).

Provides SDF primitives, smooth blending operations, voxel SDF grids, marching cubes isosurface extraction, dual contouring, and ray marching.

Structs

DualContouring

Dual contouring with QEF minimization for sharp-feature preservation.

ImplicitBlend

Smooth union/intersection/subtraction of two implicit SDFs.

ImplicitBox

Signed distance function for an axis-aligned box.

ImplicitCapsule

Signed distance function for a capsule (segment + radius).

ImplicitConvolution

Smooth SDF operations: offset surfaces and Minkowski sums.

ImplicitSphere

Signed distance function for a sphere.

ImplicitTorus

Signed distance function for a torus in the XZ plane.

IsoMesh

Output triangle mesh from isosurface extraction.

MarchingCubes

Marching Cubes isosurface extraction (Lorensen-Cline).

MarchingTetrahedra

Marching tetrahedra isosurface extraction.

RayMarchHit

Ray march hit result.

RayMarchSdf

Sphere-tracing ray marcher through an SDF.

SdfGrid3D

3D voxel grid storing signed distance values.

SdfReinitialize

Fast marching method to reinitialize a corrupted SDF grid.

Functions

sdf_gradient_numerical

Numerical gradient of an SDF at point p using central differences.

smooth_min_exponential

Smooth minimum via exponential blend.

smooth_min_polynomial

Smooth minimum (polynomial blend) of a and b with blend radius k.