-
Notifications
You must be signed in to change notification settings - Fork 0
/
ft_3d_transform.c
56 lines (47 loc) · 1.79 KB
/
ft_3d_transform.c
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* ft_3d_transform.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: mpaziuk <marvin@42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2017/02/04 14:22:54 by mpaziuk #+# #+# */
/* Updated: 2017/02/04 14:22:56 by mpaziuk ### ########.fr */
/* */
/* ************************************************************************** */
#include "fdf.h"
void x_trans(t_env *e, t_point *p)
{
p->rx = (int)((p->x - p->y) * 0.866 * e->zoom + e->x_off);
}
void y_trans(t_env *e, t_point *p)
{
p->ry = (int)(p->z * e->z_scale + (p->x + p->y) * 0.5 * e->zoom + e->y_off);
}
void x_rotation(t_point *p, float angle)
{
register float y_init;
register float z_init;
y_init = p->y;
z_init = p->z;
p->y = (y_init * cosf(angle) + z_init * sinf(angle));
p->z = (-y_init) * sinf(angle) + z_init * cosf(angle);
}
void y_rotation(t_point *p, float angle)
{
register float x_init;
register float z_init;
x_init = p->x;
z_init = p->z;
p->x = x_init * cos(angle) + (z_init) * sin(angle);
p->z = (-x_init) * sin(angle) + z_init * cos(angle);
}
void z_rotation(t_point *p, float angle)
{
register float y_init;
register float x_init;
y_init = p->y;
x_init = p->x;
p->x = x_init * cosf(angle) - y_init * sinf(angle);
p->y = x_init * sinf(angle) + y_init * cosf(angle);
}