1 #ifndef CAM_H_

2 #define CAM_H_

3

4 enum {

5 CAM_CENTER,

6 CAM_LEFT,

7 CAM_RIGHT

8 };

9

10 /* reset to the initial state */

11 void cam_reset(void); /* all */

12 void cam_reset_view(void); /* view parameters */

13 void cam_reset_proj(void); /* projection parameters */

14 void cam_reset_stereo(void); /* stereo parameters */

15

16 /* camera viewing parameters */

17 void cam_pan(int dx, int dy); /* pan across X/Z plane */

18 void cam_height(int dh); /* move verticaly */

19 void cam_rotate(int dx, int dy); /* rotate around local Y and X axis */

20 void cam_zoom(int dz); /* dolly the camera fwd/back */

21

22 /* camera projection parameters */

23 void cam_clip(float n, float f); /* set clipping planes */

24 void cam_fov(float f); /* vertical field of view in degrees */

25 void cam_aspect(float a); /* aspect ratio (width / height) */

26

27 /* stereo parameters */

28 void cam_separation(float s);

29 void cam_focus_dist(float d);

30

31 /* multiply the camera view matrix on top of the current matrix stack

32 * (which should be GL_MODELVIEW)

33 */

34 void cam_view_matrix(void);

35 void cam_stereo_view_matrix(int eye);

36

37 /* multiply the camera projection matrix on top of the current matrix stack

38 * (which should be GL_PROJECTION)

39 */

40 void cam_proj_matrix(void);

41 void cam_stereo_proj_matrix(int eye);

42

43 #endif /* CAM_H_ */