triangle.c File Reference

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <math.h>
#include "tachyon.h"
#include "vector.h"
#include "macros.h"
#include "intersect.h"
#include "util.h"
#include "triangle.h"

Go to the source code of this file.

Macros
#define	TACHYON_INTERNAL   1
#define	TRIANGLE_PRIVATE
#define	CROSS(dest, v1, v2)
#define	DOT(v1, v2)   (v1.x*v2.x+v1.y*v2.y+v1.z*v2.z)
#define	SUB(dest, v1, v2)

Functions
object *	newtri (void *tex, vector v0, vector v1, vector v2)
object *	newstri (void *tex, vector v0, vector v1, vector v2, vector n0, vector n1, vector n2)
void	stri_normal_fixup (object *otri, int mode)
object *	newvcstri (void *voidtex, vector v0, vector v1, vector v2, vector n0, vector n1, vector n2, color c0, color c1, color c2)
void	vcstri_normal_fixup (object *otri, int mode)
static int	tri_bbox (void *obj, vector *min, vector *max)
static void	tri_intersect (const tri *trn, ray *ry)
static void	tri_normal (const tri *trn, const vector *hit, const ray *incident, vector *N)
static void	stri_normal (const stri *trn, const vector *hit, const ray *incident, vector *N)
color	vcstri_color (const vector *hit, const texture *tx, const ray *incident)
static void	stri_normal_reverse (const stri *trn, const vector *hit, const ray *incident, vector *N)
static void	stri_normal_guess (const stri *trn, const vector *hit, const ray *incident, vector *N)

Variables
static object_methods	tri_methods
static object_methods	stri_methods
static object_methods	stri_methods_reverse
static object_methods	stri_methods_guess

Macro Definition Documentation

CROSS

#define CROSS	(		dest,
			v1,
			v2
	)

Value:

dest.x=v1.y*v2.z-v1.z*v2.y; \
          dest.y=v1.z*v2.x-v1.x*v2.z; \
          dest.z=v1.x*v2.y-v1.y*v2.x;

Definition at line 206 of file triangle.c.

Referenced by stri_normal(), stri_normal_guess(), stri_normal_reverse(), tri_intersect(), tri_normal(), and vcstri_color().

DOT

#define DOT	(		v1,
			v2
	)		(v1.x*v2.x+v1.y*v2.y+v1.z*v2.z)

Definition at line 211 of file triangle.c.

Referenced by stri_normal(), stri_normal_guess(), stri_normal_reverse(), tri_intersect(), and vcstri_color().

SUB

#define SUB	(		dest,
			v1,
			v2
	)

Value:

dest.x=v1.x-v2.x; \
          dest.y=v1.y-v2.y; \
          dest.z=v1.z-v2.z;

Definition at line 213 of file triangle.c.

Referenced by tri_intersect().

TACHYON_INTERNAL

#define TACHYON_INTERNAL   1

Definition at line 16 of file triangle.c.

TRIANGLE_PRIVATE

#define TRIANGLE_PRIVATE

Definition at line 23 of file triangle.c.

Function Documentation

newstri()

object* newstri	(	void *	tex,
		vector	v0,
		vector	v1,
		vector	v2,
		vector	n0,
		vector	n1,
		vector	n2
	)

Definition at line 84 of file triangle.c.

References stri_methods, VLength(), and VSub().

Referenced by rt_stri(), and rt_stri3fv().

newtri()

object* newtri	(	void *	tex,
		vector	v0,
		vector	v1,
		vector	v2
	)

Definition at line 54 of file triangle.c.

References tri_methods, VLength(), and VSub().

Referenced by rt_tri(), and rt_tri3fv().

newvcstri()

object* newvcstri	(	void *	voidtex,
		vector	v0,
		vector	v1,
		vector	v2,
		vector	n0,
		vector	n1,
		vector	n2,
		color	c0,
		color	c1,
		color	c2
	)

Definition at line 141 of file triangle.c.

References stri_methods, vcstri_color(), VLength(), and VSub().

Referenced by rt_tristripscnv3fv(), rt_vcstri(), and rt_vcstri3fv().

stri_normal()

static void stri_normal ( const stri *  trn, const vector *  hit, const ray *  incident, vector *  N  )

static

Definition at line 321 of file triangle.c.

References CROSS, DOT, SQRT, VDot(), and VSUB.

stri_normal_fixup()

void stri_normal_fixup	(	object *	otri,
		int	mode
	)

Definition at line 118 of file triangle.c.

References stri_methods, stri_methods_guess, and stri_methods_reverse.

Referenced by rt_stri(), and rt_stri3fv().

stri_normal_guess()

static void stri_normal_guess ( const stri *  trn, const vector *  hit, const ray *  incident, vector *  N  )

static

Definition at line 428 of file triangle.c.

References CROSS, DOT, SQRT, VDot(), and VSUB.

stri_normal_reverse()

static void stri_normal_reverse ( const stri *  trn, const vector *  hit, const ray *  incident, vector *  N  )

static

Definition at line 388 of file triangle.c.

References CROSS, DOT, SQRT, VDot(), and VSUB.

tri_bbox()

static int tri_bbox ( void *  obj, vector *  min, vector *  max  )

static

Definition at line 218 of file triangle.c.

References MYMAX, MYMIN, and VAdd().

tri_intersect()

static void tri_intersect ( const tri *  trn, ray *  ry  )

static

Definition at line 236 of file triangle.c.

References CROSS, DOT, and SUB.

tri_normal()

static void tri_normal ( const tri *  trn, const vector *  hit, const ray *  incident, vector *  N  )

static

Definition at line 302 of file triangle.c.

References CROSS, SQRT, and VDot().

vcstri_color()

color vcstri_color	(	const vector *	hit,
		const texture *	tx,
		const ray *	incident
	)

Definition at line 360 of file triangle.c.

References CROSS, DOT, and VSUB.

Referenced by newvcstri().

vcstri_normal_fixup()

void vcstri_normal_fixup	(	object *	otri,
		int	mode
	)

Definition at line 183 of file triangle.c.

References stri_methods, stri_methods_guess, and stri_methods_reverse.

Referenced by rt_tristripscnv3fv(), rt_vcstri(), and rt_vcstri3fv().

Variable Documentation

stri_methods

object_methods stri_methods

static

Initial value:

= {
  (void (*)(const void *, void *))(tri_intersect),
  (void (*)(const void *, const void *, const void *, void *))(stri_normal),
  tri_bbox, 
  free 
}

Definition at line 33 of file triangle.c.

Referenced by newstri(), newvcstri(), stri_normal_fixup(), and vcstri_normal_fixup().

stri_methods_guess

object_methods stri_methods_guess

static

Initial value:

= {
  (void (*)(const void *, void *))(tri_intersect),
  (void (*)(const void *, const void *, const void *, void *))(stri_normal_guess),
  tri_bbox, 
  free 
}

Definition at line 47 of file triangle.c.

Referenced by stri_normal_fixup(), and vcstri_normal_fixup().

stri_methods_reverse

object_methods stri_methods_reverse

static

Initial value:

= {
  (void (*)(const void *, void *))(tri_intersect),
  (void (*)(const void *, const void *, const void *, void *))(stri_normal_reverse),
  tri_bbox, 
  free 
}

Definition at line 40 of file triangle.c.

Referenced by stri_normal_fixup(), and vcstri_normal_fixup().

tri_methods

object_methods tri_methods

static

Initial value:

= {
  (void (*)(const void *, void *))(tri_intersect),
  (void (*)(const void *, const void *, const void *, void *))(tri_normal),
  tri_bbox, 
  free 
}

Definition at line 26 of file triangle.c.

Referenced by newtri().