CHFTracer Class Reference

#include <HFTracer.h>

Collaboration diagram for CHFTracer:

Public Member Functions
	CHFTracer (CTerrain *pTerrain)
bool	RayIntersect (const CVector3D &origin, const CVector3D &dir, int &x, int &z, CVector3D &ipt) const

Static Public Member Functions
static bool	PatchRayIntersect (CPatch *patch, const CVector3D &origin, const CVector3D &dir, CVector3D *out)
	Intersects ray with a single patch. More...

Private Member Functions
bool	CellIntersect (int cx, int cz, const CVector3D &origin, const CVector3D &dir, float &dist) const

Private Attributes
CTerrain *	m_pTerrain
const u16 *	m_Heightfield
size_t	m_MapSize
float	m_CellSize
float	m_HeightScale

Constructor & Destructor Documentation

CHFTracer()

CHFTracer::CHFTracer

(

CTerrain *

pTerrain

)

Member Function Documentation

CellIntersect()

bool CHFTracer::CellIntersect ( int  cx, int  cz, const CVector3D &  origin, const CVector3D &  dir, float &  dist  ) const

private

PatchRayIntersect()

bool CHFTracer::PatchRayIntersect ( CPatch *  patch, const CVector3D &  origin, const CVector3D &  dir, CVector3D *  out  )

static

Intersects ray with a single patch.

The ray is a half-infinite line starting at origin with direction dir (not required to be a unit vector).. The patch is treated as a collection of two-sided triangles, corresponding to the terrain tiles.

If there is an intersection, returns true; and if out is not NULL, it is set to the intersection point. This is guaranteed to be the earliest tile intersected (starting at origin), but not necessarily the earlier triangle inside that tile.

This partly duplicates RayIntersect, but it only operates on a single patch, and it's more precise (it uses the same tile triangulation as the renderer), and tries to be more numerically robust.

RayIntersect()

bool CHFTracer::RayIntersect	(	const CVector3D &	origin,
		const CVector3D &	dir,
		int &	x,
		int &	z,
		CVector3D &	ipt
	)		const

Member Data Documentation

m_CellSize

float CHFTracer::m_CellSize

private

m_Heightfield

const u16* CHFTracer::m_Heightfield

private

m_HeightScale

float CHFTracer::m_HeightScale

private

m_MapSize

size_t CHFTracer::m_MapSize

private

m_pTerrain

CTerrain* CHFTracer::m_pTerrain

private

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The documentation for this class was generated from the following files:

• /zpool0/docker-engine-docs/source/graphics/HFTracer.h
• /zpool0/docker-engine-docs/source/graphics/HFTracer.cpp