 OBB[Class Summary] |
 pos |
| r |
| axis |
 ctor (+1 overload) |
| SetNegativeInfinity() |
| SetFrom(aabb) (+6 overloads) |
| SetFromApproximate(...) |
| ToPolyhedron()[const] |
| MinimalEnclosingAABB()[const] |
| MaximalContainedAABB()[const] |
| MinimalEnclosingSphere()[const] |
| MaximalContainedSphere()[const] |
| Size()[const] |
| HalfSize()[const] |
| Diagonal()[const] |
| HalfDiagonal()[const] |
| WorldToLocal()[const] |
| LocalToWorld()[const] |
| IsFinite()[const] |
| IsDegenerate()[const] |
| CenterPoint()[const] |
| Centroid()[const] |
| Volume()[const] |
| SurfaceArea()[const] |
| PointInside(x,y,z)[const] |
| Edge(edgeIndex)[const] |
| CornerPoint(cornerIndex)[const] |
| PointOnEdge(edgeIndex,u)[const] |
| FaceCenterPoint(faceIndex)[const] |
| FacePoint(faceIndex,u,v)[const] |
| FacePlane(faceIndex)[const] |
| GetCornerPoints(outPointArray)[const] |
| GetFacePlanes(outPlaneArray)[const] |
| RandomPointInside(rng)[const] |
| RandomPointOnSurface(rng)[const] |
| RandomPointOnEdge(rng)[const] |
| RandomCornerPoint(rng)[const] |
| Translate(offset) |
| Scale(...) (+1 overload) |
| Transform(transform) (+3 overloads) |
| ClosestPoint(point)[const] |
| Distance(point)[const] (+1 overload) |
| Contains(point)[const] (+7 overloads) |
| Intersects(aabb)[const] (+11 overloads) |
| Enclose(point) |
| Triangulate(...)[const] |
| ToEdgeList(outPos)[const] |
| ExtremePointsAlongDirection(...)[static] |
| PCAEnclosingOBB(...)[static] |
| NumVerticesInTriangulation(...)[static] |
| NumVerticesInEdgeList()[static] |
OBB::Distance
Syntax
float OBB::Distance(const float3 &point) const; [7 lines of code]float OBB::Distance(const Sphere &sphere) const; [4 lines of code]
Computes the distance between this OBB and the given object.
This function finds the nearest pair of points on this and the given object, and computes their distance. If the two objects intersect, or one object is contained inside the other, the returned distance is zero.
Performance
float OBB::Distance(const float3 &point) const45.158nsecs/call ≈ 22.14M calls/second ≈ 369.08k calls/frame (@ 60fps).
This function does not perform dynamic memory allocation.
49.263nsecs/call ≈ 20.3M calls/second ≈ 338.32k calls/frame (@ 60fps).
This function does not perform dynamic memory allocation.
See Also
Work in progress:
Todo: in float OBB::Distance(const float3 &point) const:
Add OBB::Distance(Line/Ray/LineSegment/Plane/Triangle/Polygon/Circle/Disc/AABB/OBB/Capsule/Frustum/Polyhedron).
Todo: in float OBB::Distance(const float3 &point) const:
This code can be optimized a bit. See Christer Ericson's Real-Time Collision Detection, p.134.