/****************************************************************************
*                   ray.h
*
*  This module contains all defines, typedefs, and prototypes for RAY.C.
*
*  from Persistence of Vision(tm) Ray Tracer
*  Copyright 1996,1999 Persistence of Vision Team
*---------------------------------------------------------------------------
*  NOTICE: This source code file is provided so that users may experiment
*  with enhancements to POV-Ray and to port the software to platforms other
*  than those supported by the POV-Ray Team.  There are strict rules under
*  which you are permitted to use this file.  The rules are in the file
*  named POVLEGAL.DOC which should be distributed with this file.
*  If POVLEGAL.DOC is not available or for more info please contact the POV-Ray
*  Team Coordinator by email to team-coord@povray.org or visit us on the web at
*  http://www.povray.org. The latest version of POV-Ray may be found at this site.
*
* This program is based on the popular DKB raytracer version 2.12.
* DKBTrace was originally written by David K. Buck.
* DKBTrace Ver 2.0-2.12 were written by David K. Buck & Aaron A. Collins.
*
*****************************************************************************/

/* NOTE: FRAME.H contains other ray stuff. */

#ifndef RAY_H
#define RAY_H



/*****************************************************************************
* Global preprocessor defines
******************************************************************************/



/*****************************************************************************
* Global typedefs
******************************************************************************/



/*****************************************************************************
* Global variables
******************************************************************************/




/*****************************************************************************
* Global functions
******************************************************************************/

void Initialize_Ray_Containers (RAY *Ray);
void Copy_Ray_Containers (RAY *Dest_Ray, RAY *Source_Ray);
void Ray_Enter (RAY *ray, INTERIOR *interior);
void Ray_Exit (RAY *ray, int nr);
int  Interior_In_Ray_Container (RAY *, INTERIOR *);



#endif
