/* == main.c == */

/* == camera.c == */

void camera_getdir(
camera_t *cam,
int      x,
int      y,
vec_t    dir);

void camera_store_pixel(
camera_t *cam,
int      x,
int      y,
drgb_t   pix);

/* Initialize viewpoint data */

camera_t *camera_init(
FILE *in,
model_t *model,
int  attrmax);

/* Dump the camera data */

void camera_print(
camera_t *cam,
FILE   *out);


void camera_write_image(
camera_t *cam,
FILE *out);

/* == list.c == */

/* malloc a new list header and initialize it */

list_t *list_init(
void);

/* Add an element to the end of a list */

void list_add(
list_t *list,
void   *entity);

void list_reset(
list_t *list);

int list_not_end(
list_t *list);

int list_next_link(
list_t *list);

void *list_get_entity(
list_t *list);