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Unreal Engine C++ API Reference > Runtime > GeometryCore > CompGeom
References
| Module | GeometryCore |
| Header | /Engine/Source/Runtime/GeometryCore/Public/CompGeom/ConvexDecomposition3.h |
| Include | #include "CompGeom/ConvexDecomposition3.h" |
Syntax
template<class TriangleMeshType>
class TFastWindingTree
Remarks
Fast Mesh Winding Number extension to a TMeshAABBTree3. This class is an "add-on" to the AABBTree, that can compute the Fast Mesh Winding Number. This calculation requires a precomputation pass where information is cached at each tree node.
Variables
| Type | Name | Description | |
|---|---|---|---|
 |
int | FWNApproxOrder | FWN approximation order. Must be 1 or 2. 2 is more accurate, obviously. |
 |
double | FWNBeta | FWN beta parameter - is 2.0 in paper |
Constructors
| Type | Name | Description | |
|---|---|---|---|
 |
TFastWindingTree
(
TMeshAABBTree3< TriangleMeshType >* TreeToRef, |
Functions
| Type | Name | Description | |
|---|---|---|---|
 |
void | Build
(
bool bForceRebuild |
|
 |
double | FastWindingNumber
(
const FVector3d& P |
Fast approximation of winding number using far-field approximations. |
  |
double | FastWindingNumber
(
const FVector3d& P |
Const version does not auto-build on query |
  |
TMeshAABBTree3< TriangleMeshType > * | GetTree () |
|
  |
bool | IsBuilt () |
|
  |
bool | IsInside
(
const FVector3d& P, |
|
 |
void | SetTree
(
TMeshAABBTree3< TriangleMeshType >* TreeToRef, |