/****************************************************************************
*                   normal.h
*
*  This module contains all defines, typedefs, and prototypes for NORMAL.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.
*
*****************************************************************************/

/* NOTE: FRAME.H contains other normal stuff. */

#ifndef NORMAL_H
#define NORMAL_H



/*****************************************************************************
* Global preprocessor defines
******************************************************************************/



/*****************************************************************************
* Global typedefs
******************************************************************************/


/*****************************************************************************
* Global variables
******************************************************************************/




/*****************************************************************************
* Global functions
******************************************************************************/

TNORMAL *Create_Tnormal PARAMS((void));
TNORMAL *Copy_Tnormal PARAMS((TNORMAL *Old));
void Translate_Tnormal PARAMS((TNORMAL *Tnormal, VECTOR Vector));
void Rotate_Tnormal PARAMS((TNORMAL *Tnormal, VECTOR Vector));
void Scale_Tnormal PARAMS((TNORMAL *Tnormal, VECTOR Vector));
void Transform_Tnormal PARAMS((TNORMAL *Tnormal, TRANSFORM *Trans));
void Destroy_Tnormal PARAMS((TNORMAL *Tnormal));
void Post_Tnormal PARAMS((TNORMAL *Tnormal));
void Perturb_Normal PARAMS((VECTOR Layer_Normal, TNORMAL *Tnormal, VECTOR IPoint));


#endif