Function 
-  Sets up camera. 

Functions 
-  void mrnCameraInit( MrnCamera *camera_ptr, const u32 type );
  Initializes camera. 
  Select either MRN_CAMERA_TYPE_PERSPECTIVE or 
             	MRN_CAMERA_TYPE_ORTHOGONAL for the type. 

-  Gfx *mrnCameraGenerateGfx( MrnCamera *camera_ptr,
			     MrnContext *context_ptr,
			     Gfx *gfx_ptr );
  Generates a gfx of the camera settings and returns the updated gfx pointer. 
  This function is called when there is no mrn module. 

History 
  1998/10/12 Takamitsu Hirata 
    Camera.h, camera.c :  Initial version 
