a general view frustum class. More...
#include <ShapeFrustum.h>
Inheritance diagram for ParaEngine::CShapeFrustum:
Public Member Functions | |
| CShapeFrustum (const Matrix4 *matrix) | |
| build a frustum from a camera (projection, or viewProjection) matrix | |
| bool | TestSphere (const CShapeSphere *sphere) const |
| bool | TestSweptSphere (const CShapeSphere *sphere, const Vector3 *sweepDir) const |
| int | TestBox (const CShapeAABB *box) const |
| Tests if an AABB is inside/intersecting the view frustum. More... | |
| virtual void | UpdateFrustum (const Matrix4 *matViewProj, bool bInversedMatrix=false, float fNearPlane=0.f, float fFarPlane=1.f) |
| build a frustum from a camera (projection, or viewProjection) matrix More... | |
| Plane & | GetPlane (int nIndex) |
| Get a given frustum plane. More... | |
| bool | CullPointWithPlane (int iPlane, const Vector3 *vPos) |
| whether the point is inside a given plane. More... | |
| bool | CullPointsWithFrustum (Vector3 *pVecBounds, int nCount) |
| return true if any of the point is inside the frustum | |
Static Public Member Functions | |
| static bool | SweptSpherePlaneIntersect (float &t0, float &t1, const Plane *plane, const CShapeSphere *sphere, const Vector3 *sweepDir) |
| this function tests if the projection of a bounding sphere along the light direction intersects the view frustum | |
Public Attributes | |
| Vector3 | vecFrustum [8] |
| corners of the view frustum | |
| Plane | planeFrustum [6] |
| planes of the view frustum | |
| int | nVertexLUT [6] |
Detailed Description
a general view frustum class.
Member Function Documentation
§ CullPointWithPlane()
| bool ParaEngine::CShapeFrustum::CullPointWithPlane | ( | int | iPlane, |
| const Vector3 * | vPos | ||
| ) |
whether the point is inside a given plane.
- Parameters
-
iPlane 0 is near plane, 1 is far plane, 2-5 is left, right, top, bottom.
§ GetPlane()
|
inline |
Get a given frustum plane.
- Parameters
-
nIndex 0 is near plane, 1 is far plane, 2-5 is left, right, top, bottom.
§ TestBox()
| int CShapeFrustum::TestBox | ( | const CShapeAABB * | box | ) | const |
Tests if an AABB is inside/intersecting the view frustum.
- Returns
- : 2 requires more testing(meaning either intersecting) 1 is fast accept(meaning the box is fully inside the frustum) 0 is fast reject,
§ UpdateFrustum()
|
virtual |
build a frustum from a camera (projection, or viewProjection) matrix
- Parameters
-
matViewProj the view projection matrix. bInversedMatrix if this is true, matViewProj is the inverse of standard matViewProj fNearPlane the near plane in viewProjection coordinate, default to 0.f fFarPlane the far plane in viewProjection coordinate, default to 1.f
Reimplemented in ParaEngine::CCameraFrustum.
The documentation for this class was generated from the following files:
- Client/trunk/ParaEngineClient/math/ShapeFrustum.h
- Client/trunk/ParaEngineClient/math/ShapeFrustum.cpp
