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LIGHTING.H

LIGHTING.H 2.4 KB
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  1. /****************************************************************************
    2. 

  2. *                   lighting.h
    3. 

  3. *
    4. 

  4. *  This module contains all defines, typedefs, and prototypes for LIGHTING.C.
    5. 

  5. *
    6. 

  6. *  from Persistence of Vision(tm) Ray Tracer
    7. 

  7. *  Copyright 1996,1999 Persistence of Vision Team
    8. 

  8. *---------------------------------------------------------------------------
    9. 

  9. *  NOTICE: This source code file is provided so that users may experiment
    10. 

  10. *  with enhancements to POV-Ray and to port the software to platforms other
    11. 

  11. *  than those supported by the POV-Ray Team.  There are strict rules under
    12. 

  12. *  which you are permitted to use this file.  The rules are in the file
    13. 

  13. *  named POVLEGAL.DOC which should be distributed with this file.
    14. 

  14. *  If POVLEGAL.DOC is not available or for more info please contact the POV-Ray
    15. 

  15. *  Team Coordinator by email to team-coord@povray.org or visit us on the web at
    16. 

  16. *  http://www.povray.org. The latest version of POV-Ray may be found at this site.
    17. 

  17. *
    18. 

  18. * This program is based on the popular DKB raytracer version 2.12.
    19. 

  19. * DKBTrace was originally written by David K. Buck.
    20. 

  20. * DKBTrace Ver 2.0-2.12 were written by David K. Buck & Aaron A. Collins.
    21. 

  21. *
    22. 

  22. *****************************************************************************/
    23. 

  23. 

  24. 

  25. #ifndef LIGHTING_H
    26. 

  26. #define LIGHTING_H
    27. 

  27. 

  28. #include "point.h"
    29. 

  29. 

  30. 

  31. 

  32. /*****************************************************************************
    33. 

  33. * Global preprocessor defines
    34. 

  34. ******************************************************************************/
    35. 

  35. 

  36. 

  37. 

  38. 

  39. /*****************************************************************************
    40. 

  40. * Global typedefs
    41. 

  41. ******************************************************************************/
    42. 

  42. 

  43. 

  44. 

  45. 

  46. /*****************************************************************************
    47. 

  47. * Global variables
    48. 

  48. ******************************************************************************/
    49. 

  49. 

  50. 

  51. 

  52. /*****************************************************************************
    53. 

  53. * Global functions
    54. 

  54. ******************************************************************************/
    55. 

  55. 

  56. void Determine_Apparent_Colour (INTERSECTION *Ray_Intersection, COLOUR Colour, RAY *Ray, DBL Weight);
    57. 

  57. void Initialize_Lighting_Code (void);
    58. 

  58. void Reinitialize_Lighting_Code (int Number_Of_Entries, TEXTURE ***Textures, DBL **Weights);
    59. 

  59. void Deinitialize_Lighting_Code (void);
    60. 

  60. int Test_Shadow (LIGHT_SOURCE *Light, DBL *Depth, RAY *Light_Source_Ray, RAY *Eye_Ray, VECTOR P, COLOUR Colour);
    61. 

  61. 

  62. 

  63. 

  64. #endif
    65.