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vector.h File Reference

everything that's got to do with vectors'n'stuff :) More...

#include "vector2.h"
#include "vector4.h"

Go to the source code of this file.

Data Structures
struct	bbox_s
	a bounding box
struct	collision_s
	collision information
struct	intersection_s
	A plane/xx intersection. More...
struct	plane_s
	a 3d plane
class	vec3_c
	3d vector class
struct	vertex_s
	A standard vertex. More...
Defines
#define	VECT_X   0
	X component of a vector.
#define	VECT_Y   1
	Y component of a vector.
#define	VECT_Z   2
	Z component of a vector.
#define	VECT_W   3
	W component of a vec4.
#define	ANGLE_YAW   0
	Yaw component.
#define	ANGLE_PITCH   1
	Pitch component.
#define	ANGLE_ROLL   2
	Roll component.
#define	V2TOFS(a)   (float)a[0], (float)a[1]
	will convert a vec* into it's components, comma seperated
Typedefs
typedef float	vec_t
	a scalar
typedef vec_t	vec2_t [2]
	2 dimensional vector
typedef vec_t	vec3_t [3]
	3 dimensional vector
typedef vec_t	vec4_t [4]
	4 dimensional vector
typedef vec_t	vec5_t [5]
	5 dimensional vector
typedef vec3_t	edge_t [2]
	an edge
typedef spline_t	patch_t [3]
	a patch
typedef collision_s	collision_t
	collision information
typedef bbox_s	bbox_t
	a bounding box
typedef float	matrix3_t [4][4]
	3x3 matrix
typedef float	matrix4_t [4][4]
	4x4 matrix
typedef plane_s	plane_t
	a 3d plane
typedef vertex_s	vertex_t
	A standard vertex.
typedef intersection_s	intersection_t
	A plane/xx intersection.
Functions
plane_t	plane_frompoints (const vec3_t a, const vec3_t b, const vec3_t c)
	create a plane
float	plane_line_intersect (const vec3_t a, const vec3_t b, const plane_t *p, vec3_t out)
float	plane_pointdist (const vec3_t v, const plane_t *p)
int	plane_pointside (const vec3_t v, const plane_t *p)
int	plane_clip_box (const plane_t *p, const bbox_t *bbox)
void	vertex_set_ex (vertex_t *vert, float x, float y, float z, float u, float v, float lu, float lv)
void	vertex_set (vertex_t *vert, float x, float y, float z, float u, float v)
void	vertex_copy (vertex_t *in, vertex_t *out)
void	matrix3_mult (const matrix3_t a, const matrix3_t b, matrix3_t out)
Variables
vec3_c	spline_t [3]
	a spline

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Detailed Description

All 3d Vector stuff is here :)

Definition in file vector.h.

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Typedef Documentation

typedef struct intersection_s intersection_t

This is an intersection as it is returned by Omicron's intersetion routines.

typedef struct vertex_s vertex_t

The Omicron representation of a 3 dimensional vertex. It has a 3 dimensional vector as coordinates, a normal vector, 2 texture vectors one for texture and one for lightmap (for those graphic adapters that support multitexturing) and a diffuse color value.

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Function Documentation

void matrix3_mult (  const matrix3_t    a, const matrix3_t    b, matrix3_t    out )

multiply two matrices Multiplies two matrices. out = a x b Parameters: a  first matrix b  second matrix out  output Definition at line 55 of file m_matrix.cpp. References matrix3_t. Referenced by vec3_c::rotate_vec().

int plane_clip_box (  const plane_t *    p, const bbox_t *    bbox )

check box side Checks which side the box is on. Returns 1 if box is totally in front, 0 if partially in front and -1 if totally invisible. Parameters: p  plane bbox  the box Definition at line 142 of file m_plane.cpp. References plane_pointside(), and vec3_c::set().

plane_t plane_frompoints (  const vec3_t    a, const vec3_t    b, const vec3_t    c )

Parameters: a  input vectors Definition at line 53 of file m_plane.cpp. References vec3_c::copy(), vec3_c::cross(), plane_s::d, vec3_c::dot(), plane_s::n, vec3_c::normalize(), and vec3_t. Referenced by landscape_c::create_normals().

float plane_line_intersect (  const vec3_t    a, const vec3_t    b, const plane_t *    p, vec3_t    out )

find intersection Finds the intersection point of a plane and a line. The result is stored in out. The return value is the fraction of the distance between b (1.0) and a (0.0). Parameters: a  start vector b  end vector p  plane to test out  output vector Definition at line 83 of file m_plane.cpp. References vec3_c::copy(), and vec3_t. Referenced by brushface_c::cut().

float plane_pointdist (  const vec3_t    v, const plane_t *    p )

get the distance from a plane Returns the distance of a point from a plane. Parameters: v  point p  plane Definition at line 112 of file m_plane.cpp. References vec3_t. Referenced by brushface_c::cut().

int plane_pointside (  const vec3_t    v, const plane_t *    p )

check which side point is on 1 if in front, 0 if coincident and -1 if behind Parameters: v  point p  plane Definition at line 127 of file m_plane.cpp. References _sgn(), and vec3_t. Referenced by landscape_c::is_node_visible(), and plane_clip_box().

void vertex_copy (  vertex_t *    in, vertex_t *    out )

copy vertex Copies a vertex into another. (out = in) Parameters: in  input vertex out  output vertex Definition at line 94 of file r_vertex.cpp. Referenced by brushface_c::cut(), and brushface_c::get_vertex().

void vertex_set (  vertex_t *    vert, float    x, float    y, float    z, float    u, float    v )

set vertex Fills a vertex with coordinates. Parameters: vert  vertex x  coordinates u  texture coords Definition at line 76 of file r_vertex.cpp. References vertex_set_ex(). Referenced by particle_type_c::draw().

void vertex_set_ex (  vertex_t *    vert, float    x, float    y, float    z, float    u, float    v, float    lu, float    lv )

set vertex Fills a vertex with coordinates including lightmapped. Parameters: vert  vertex x  coordinates u  texture coords lu  light map coords Definition at line 53 of file r_vertex.cpp. Referenced by vertex_set().

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