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/*******************************************************************************
* atmosph.h
*
* This module contains all defines, typedefs, and prototypes for ATMOSPH.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/scene/atmosph.h $
* $Revision: #1 $
* $Change: 6069 $
* $DateTime: 2013/11/06 11:59:40 $
* $Author: chrisc $
*******************************************************************************/
#ifndef ATMOSPH_H
#define ATMOSPH_H
namespace pov
{
/*****************************************************************************
* Global preprocessor defines
******************************************************************************/
/* Define fog types. DMF */
#define ORIG_FOG 1
#define GROUND_MIST 2
#define FOG_TYPES 2
/*****************************************************************************
* Global typedefs
******************************************************************************/
typedef struct Fog_Struct FOG;
typedef struct Rainbow_Struct RAINBOW;
typedef struct Skysphere_Struct SKYSPHERE;
struct Fog_Struct
{
int Type;
DBL Distance;
DBL Alt;
DBL Offset;
Colour colour; // may have a filter/transmit component
VECTOR Up;
TURB *Turb;
SNGL Turb_Depth;
FOG *Next;
};
struct Rainbow_Struct
{
DBL Distance;
DBL Jitter;
DBL Angle, Width;
DBL Arc_Angle, Falloff_Angle, Falloff_Width;
VECTOR Antisolar_Vector;
VECTOR Up_Vector, Right_Vector;
PIGMENT *Pigment;
RAINBOW *Next;
};
struct Skysphere_Struct
{
int Count; ///< Number of pigments.
RGBColour Emission; ///< Brightness adjustment.
PIGMENT **Pigments; ///< Pigment(s) to use.
TRANSFORM *Trans; ///< Skysphere transformation.
};
/*****************************************************************************
* Global functions
******************************************************************************/
FOG *Create_Fog (void);
FOG *Copy_Fog (const FOG *Fog);
void Destroy_Fog (FOG *Fog);
RAINBOW *Create_Rainbow (void);
RAINBOW *Copy_Rainbow (const RAINBOW *Rainbow);
void Destroy_Rainbow (RAINBOW *Rainbow);
SKYSPHERE *Create_Skysphere (void);
SKYSPHERE *Copy_Skysphere (const SKYSPHERE *Skysphere);
void Destroy_Skysphere (SKYSPHERE *Skysphere);
void Scale_Skysphere (SKYSPHERE *Skysphere, const VECTOR Vector);
void Rotate_Skysphere (SKYSPHERE *Skysphere, const VECTOR Vector);
void Translate_Skysphere (SKYSPHERE *Skysphere, const VECTOR Vector);
void Transform_Skysphere (SKYSPHERE *Skysphere, const TRANSFORM *Trans);
}
#endif
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