gfx/povray/warps.h

   1 /****************************************************************************
   2 *                   warps.h
   3 *
   4 *  This module contains all defines, typedefs, and prototypes for WARPS.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 /* NOTE: FRAME.H contains other warp stuff. */
  25
  26 #ifndef WARP_H
  27 #define WARP_H
  28
  29
  30
  31 /*****************************************************************************
  32 * Global preprocessor defines
  33 ******************************************************************************/
  34
  35 /* Warp types */
  36 #define NO_WARP             0
  37 #define CLASSIC_TURB_WARP   1
  38 #define REPEAT_WARP         2
  39 #define BLACK_HOLE_WARP     3
  40 #define EXTRA_TURB_WARP     4
  41 #define TRANSFORM_WARP      5
  42
  43
  44
  45 /*****************************************************************************
  46 * Global typedefs
  47 ******************************************************************************/
  48
  49 typedef struct Repeat_Warp REPEAT;
  50 typedef struct Trans_Warp TRANS;
  51 typedef struct Black_Hole_Warp BLACK_HOLE;
  52
  53 struct Repeat_Warp
  54 {
  55   WARP_FIELDS
  56   int Axis;
  57   SNGL Width;
  58   VECTOR Flip, Offset;
  59 };
  60
  61 struct Trans_Warp
  62 {
  63   WARP_FIELDS
  64   TRANSFORM Trans;
  65 };
  66
  67 struct Black_Hole_Warp
  68
  69 {
  70
  71   WARP_FIELDS
  72
  73   VECTOR      Center ;
  74
  75   VECTOR      Repeat_Vector ;
  76
  77   VECTOR      Uncertainty_Vector ;
  78
  79   DBL         Strength ;
  80
  81   DBL         Radius ;
  82
  83   DBL         Radius_Squared ;
  84
  85   DBL         Inverse_Radius ;
  86
  87   DBL         Power ;
  88
  89   short       Inverted ;
  90
  91   short       Type ;
  92
  93   short       Repeat ;
  94
  95   short       Uncertain ;
  96
  97 } ;
  98
  99
 100
 101
 102
 103
 104 /*****************************************************************************
 105 * Global variables
 106 ******************************************************************************/
 107
 108
 109 /*****************************************************************************
 110 * Global constants
 111 ******************************************************************************/
 112
 113
 114 /*****************************************************************************
 115 * Global functions
 116 ******************************************************************************/
 117
 118 void Warp_EPoint (VECTOR TPoint, VECTOR EPoint, TPATTERN *TPat);
 119 WARP *Create_Warp (int Warp_Type);
 120 void Destroy_Warps (WARP *Warps);
 121 WARP *Copy_Warps (WARP *Old);
 122
 123 #endif