1 /****************************************************************************
4 * This module contains all defines, typedefs, and prototypes for COLOUR.C.
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.
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.
22 *****************************************************************************/
24 /* NOTE: FRAME.H contains other colour stuff. */
31 /*****************************************************************************
32 * Global preprocessor defines
33 ******************************************************************************/
38 /*****************************************************************************
40 ******************************************************************************/
45 /*****************************************************************************
47 ******************************************************************************/
51 /*****************************************************************************
53 ******************************************************************************/
55 COLOUR
*Create_Colour (void);
56 COLOUR
*Copy_Colour (COLOUR Old
);
57 BLEND_MAP_ENTRY
*Create_BMap_Entries (int Map_Size
);
58 BLEND_MAP_ENTRY
*Copy_BMap_Entries (BLEND_MAP_ENTRY
*Old
,int Map_Size
,int Type
);
59 BLEND_MAP
*Create_Blend_Map (void);
60 BLEND_MAP
*Copy_Blend_Map (BLEND_MAP
*Old
);
61 DBL
Colour_Distance (COLOUR colour1
, COLOUR colour2
);
62 void Add_Colour (COLOUR result
, COLOUR colour1
, COLOUR colour2
);
63 void Scale_Colour (COLOUR result
, COLOUR colour
, DBL factor
);
64 void Clip_Colour (COLOUR result
, COLOUR colour
);
65 void Destroy_Blend_Map (BLEND_MAP
*BMap
);