static void calculate_reflected(t_ray *a, t_ray *b)
{
t_vector n;
t_point intersection;
intersection.x = a->origin.x + a->direction.x * a->inter_t;
intersection.y = a->origin.y + a->direction.y * a->inter_t;
intersection.z = a->origin.z + a->direction.z * a->inter_t;
if (a->closest->type == OBJ_SPHERE)
{
n.x = intersection.x - a->closest->origin.x;
n.y = intersection.y - a->closest->origin.y;
n.z = intersection.z - a->closest->origin.z;
}
else if (a->closest->type == OBJ_CYLINDER)
get_cylinder_normal(&n, a->closest, &intersection);
else if (a->closest->type == OBJ_CONE)
get_cone_normal(&n, a->closest, &intersection);
else
n = a->closest->normal;
b->origin = intersection;
vect_scale(&a->direction, -1);
b->direction.x = 2 * (vect_dot(&n, &a->direction)) * n.x - a->direction.x;
b->direction.y = 2 * (vect_dot(&n, &a->direction)) * n.y - a->direction.y;
b->direction.z = 2 * (vect_dot(&n, &a->direction)) * n.z - a->direction.z;
normalize_vector(&b->direction);
}
void set_val_cone(t_env *env, double t, t_ray *ray)
{
OBJ.new_start = vector_add(ray->start, vector_scale(t, ray->dir));
OBJ.normal = get_cone_normal(CONES[OBJ.cur_cone], OBJ.new_start);
OBJ.cur_mat = env->obj.mats[CONES[OBJ.cur_cone].shape.material];
env->spec_coef = OBJ.cur_mat.specular;
}
int get_normal(t_vec3 *normal, t_scene *obj, t_coord *point)
{
t_cone *circle;
t_cone *plane;
t_cone *cone;
t_cylinder *cylinder;
if (obj->type == CONE)
{
cone = obj->object;
get_cone_normal(normal, cone, point);
}
else if (obj->type == CYLINDER)
{
cylinder = obj->object;
get_cylinder_normal(normal, cylinder, point);
}
else if (obj->type == PLANE)
{
plane = obj->object;
normal->x = plane->n.x;
normal->y = plane->n.y;
normal->z = plane->n.z;
normalize(normal);
}
else if (obj->type == CIRCLE)
{
circle = obj->object;
normal->x = point->x - circle->center.x;
normal->y = point->y - circle->center.y;
normal->z = point->z - circle->center.z;
normalize(normal);
}
else
return (1);
return (0);
}