gfx/povray/boxes.h

   1 /****************************************************************************
   2 *                   boxes.h
   3 *
   4 *  This module contains all defines, typedefs, and prototypes for BOXES.C.
   5 *
   6 *  from Persistence of Vision(tm) Ray Tracer
   7 *  Copyright 1996,1999 Persistence of Vision Team
   8 *---------------------------------------------------------------------------
   9 *  NOTICE: This source code file is provided so that users may experiment
  10 *  with enhancements to POV-Ray and to port the software to platforms other
  11 *  than those supported by the POV-Ray Team.  There are strict rules under
  12 *  which you are permitted to use this file.  The rules are in the file
  13 *  named POVLEGAL.DOC which should be distributed with this file.
  14 *  If POVLEGAL.DOC is not available or for more info please contact the POV-Ray
  15 *  Team Coordinator by email to team-coord@povray.org or visit us on the web at
  16 *  http://www.povray.org. The latest version of POV-Ray may be found at this site.
  17 *
  18 * This program is based on the popular DKB raytracer version 2.12.
  19 * DKBTrace was originally written by David K. Buck.
  20 * DKBTrace Ver 2.0-2.12 were written by David K. Buck & Aaron A. Collins.
  21 *
  22 *****************************************************************************/
  23
  24
  25 #ifndef BOXES_H
  26 #define BOXES_H
  27
  28
  29
  30 /*****************************************************************************
  31 * Global preprocessor defines
  32 ******************************************************************************/
  33
  34 #define BOX_OBJECT (BASIC_OBJECT)
  35
  36
  37
  38 /*****************************************************************************
  39 * Global typedefs
  40 ******************************************************************************/
  41
  42 typedef struct Box_Struct BOX;
  43
  44 struct Box_Struct
  45 {
  46   OBJECT_FIELDS
  47   TRANSFORM *Trans;
  48   VECTOR bounds[2];
  49 };
  50
  51
  52
  53 /*****************************************************************************
  54 * Global variables
  55 ******************************************************************************/
  56
  57 extern METHODS Box_Methods;
  58
  59
  60
  61 /*****************************************************************************
  62 * Global functions
  63 ******************************************************************************/
  64
  65 int  Intersect_Box (RAY *Ray, BOX *box, DBL *Depth1, DBL *Depth2, int *Side1, int *Side2);
  66 BOX  *Create_Box (void);
  67 void Destroy_Box (OBJECT *Object);
  68 BOX *Copy_Box (OBJECT *Object);
  69 void Compute_Box_BBox (BOX *Box);
  70
  71 #endif