iAScene.h File Reference

#include "iARayTracer.h"

Include dependency graph for iAScene.h:

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Classes
struct	iAintersection
	Structure representing intersection data, contains data about primitives. More...
class	iAScene
	Class representing scene data, organized as BSP tree. Also list of all primitives is available. More...
class	iATriPrim
	Triangle primitive class. More...

Macros
#define	HIT   1
#define	INPRIM   -1
#define	MISS   0

Functions
int	GetIntersectionState (const iARay &ray, float &tmin, float &tmax, float &split, int splitIndex, float &t)
	Ray-AABB intersection routine, checks which subnodes' AABBs are intersected by ray. More...
int	Intersect (iAVec3f &ro, iAVec3f rd, const iAaabb &box)
	Ray-AABB intersection routine. More...
int	IntersectAABB (const iARay &ray, const iAaabb &box, float &tmin, float &tmax)
	Ray-AABB intersection routine. More...
int	IntersectCyl (const iARay &ray, const iAaabb &box, float &tmin, float &tmax, int ind)
	Ray-Axis-oriented-cylinder intersection routine. More...

Macro Definition Documentation

HIT

#define HIT   1

INPRIM

#define INPRIM   -1

MISS

#define MISS   0

Function Documentation

GetIntersectionState()

int GetIntersectionState ( const iARay &  ray, float &  tmin, float &  tmax, float &  split, int  splitIndex, float &  t  )

inline

Ray-AABB intersection routine, checks which subnodes' AABBs are intersected by ray.

Parameters

ray	ray class.
tmin	parent AABB min t.
tmax	parent AABB max t.
split	split plane's coordinates
splitIndex	index of splitting axis
t	[out] split plane's t

Returns

0 - left node intersected 1 - both nodes intersected 2 - right node intersected

Intersect()

int Intersect ( iAVec3f &  ro, iAVec3f  rd, const iAaabb &  box  )

inline

Ray-AABB intersection routine.

Parameters

ro	ray's origin position.
rd	ray's distance.
box	axis aligned bounding box structure.

Returns

1 - if ray intersects AABB 0 - otherwise

IntersectAABB()

int IntersectAABB ( const iARay &  ray, const iAaabb &  box, float &  tmin, float &  tmax  )

inline

Ray-AABB intersection routine.

Parameters

ray	ray class.
box	axis aligned bounding box structure.
tmin	parent AABB min t.
tmax	parent AABB max t.

Returns

1 - if ray intersects AABB 0 - otherwise

IntersectCyl()

int IntersectCyl	(	const iARay &	ray,
		const iAaabb &	box,
		float &	tmin,
		float &	tmax,
		int	ind
	)

Ray-Axis-oriented-cylinder intersection routine.

Parameters

ray	ray class.
box	axis aligned bounding box structure.
tmin	parent AABB min t.
tmax	parent AABB max t.
ind	cylinder axis index.

Returns

1 - if ray intersects AABB 0 - otherwise