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- /****************************************************************************
- * render.h
- *
- * This module contains all defines, typedefs, and prototypes for RENDER.C.
- *
- * from Persistence of Vision(tm) Ray Tracer
- * Copyright 1996 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 leaving a message in CompuServe's Graphics Developer's
- * Forum. The latest version of POV-Ray may be found there as well.
- *
- * 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.
- *
- *****************************************************************************/
-
-
- #ifndef RENDER_H
- #define RENDER_H
-
-
-
- /*****************************************************************************
- * Global preprocessor defines
- ******************************************************************************/
-
-
-
-
- /*****************************************************************************
- * Global typedefs
- ******************************************************************************/
-
- typedef enum
- {
- CSV,
- SYS,
- PPM,
- TARGA,
- PNG,
- NONE
- } Histogram_Types ;
-
- /*****************************************************************************
- * Global variables
- ******************************************************************************/
-
- extern int Trace_Level, Max_Trace_Level, Highest_Trace_Level;
-
- extern DBL ADC_Bailout;
-
- extern unsigned long *histogram_grid ;
- extern unsigned long max_histogram_value ;
- extern FILE_HANDLE *Histogram_File_Handle ;
-
- /*****************************************************************************
- * Global functions
- ******************************************************************************/
-
- void Read_Rendered_Part PARAMS((char *New_Fname));
- void Start_Tracing_Mosaic_Smooth PARAMS((int StartPixelSize, int EndPixelSize));
- void Start_Tracing_Mosaic_Preview PARAMS((int StartPixelSize, int EndPixelSize));
- void Start_Adaptive_Tracing PARAMS((void));
- void Start_Non_Adaptive_Tracing PARAMS((void));
- void Initialize_Renderer PARAMS((void));
- void Terminate_Renderer PARAMS((void));
- DBL Trace PARAMS((RAY *Ray, COLOUR Colour, DBL Weight));
- void Check_User_Abort PARAMS((int Do_Stats));
- void write_histogram PARAMS ((char *filename)) ;
- void destroy_histogram PARAMS ((void)) ;
-
- #endif
-