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/*******************************************************************************
* normal.h
*
* This module contains all defines, typedefs, and prototypes for NORMAL.CPP.
*
* ---------------------------------------------------------------------------
* Persistence of Vision Ray Tracer ('POV-Ray') version 3.7.
* Copyright 1991-2013 Persistence of Vision Raytracer Pty. Ltd.
*
* POV-Ray is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* POV-Ray is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
* ---------------------------------------------------------------------------
* POV-Ray 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.
* ---------------------------------------------------------------------------
* $File: //depot/public/povray/3.x/source/backend/texture/normal.h $
* $Revision: #1 $
* $Change: 6069 $
* $DateTime: 2013/11/06 11:59:40 $
* $Author: chrisc $
*******************************************************************************/
/* NOTE: FRAME.H contains other normal stuff. */
#ifndef NORMAL_H
#define NORMAL_H
namespace pov
{
/*****************************************************************************
* Global preprocessor defines
******************************************************************************/
/*****************************************************************************
* Global typedefs
******************************************************************************/
/*****************************************************************************
* Global variables
******************************************************************************/
/*****************************************************************************
* Global functions
******************************************************************************/
TNORMAL *Create_Tnormal ();
TNORMAL *Copy_Tnormal (const TNORMAL *Old);
void Destroy_Tnormal (TNORMAL *Tnormal);
void Post_Tnormal (TNORMAL *Tnormal);
void Perturb_Normal (VECTOR Layer_Normal, const TNORMAL *Tnormal, const VECTOR IPoint, Intersection *Intersection, const Ray *ray, TraceThreadData *Thread);
}
#endif
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