t_color reflection(t_scene *scene, t_inter *inter, t_color pixel_color, int level)
{
t_color reflec;
t_ray ray;
if (level >= MAX_REFLEC)
return (pixel_color);
if (inter->obj->mat->reflec > 0)
{
ray.o = inter->pos;
ray.dir = inter->reflect;
reflec = ray_go_to_the_world_and_dont_forget_to_draw(scene, &ray, level + 1);
reflec = add_color(mult_color(reflec, inter->obj->mat->reflec),
mult_color(pixel_color, (1 - inter->obj->mat->reflec)));
}
else
reflec = pixel_color;
return (reflec);
}
u_int calc_light(t_mlx *mlx, t_xyz *spot)
{
t_xyz p;
t_xyz light;
t_xyz normal;
double cos_a;
u_int new_color;
p = (t_xyz){mlx->eye.x + mlx->k * mlx->vector.x,
mlx->eye.y + mlx->k * mlx->vector.y,
mlx->eye.z + mlx->k * mlx->vector.z};
light = (t_xyz){spot->x - p.x, spot->y - p.y, spot->z - p.z};
new_color = mlx->cur_obj->color;
get_normal(&normal, &p, mlx->cur_obj);
cos_a = (normal.x * light.x + normal.y * light.y + normal.z * light.z)
/ (norme_vector(&normal) * norme_vector(&light));
new_color = (cos_a >= 0 && cos_a <= 1)
? mult_color(mlx->cur_obj->color, cos_a) : 0;
return (new_color);
}
