View source for RDT (Resident Evil 1997)

=== Offset 0 (*.RVD) - Camera zones/switches ===

At offset 0, you'll find the list of camera switches for the current room. The list end with the first 4 bytes are 0xffffffff (i.e for cam0 and cam1 values).

<pre>
typedef struct {
  unsigned short to; /* Camera number to switch to */
  unsigned short from; /* Camera number to switch from */
  short x1,y1; /* Zone the player must enter to switch camera */
  short x2,y2;
  short x3,y3;
  short x4,y4;
} rdt_camera_switch_t;</pre>

If the 'to' value = 9, then it is a zone, defining the area in which the switches will work and 3D objects will be visible while this camera is used, else it is a camera switch.