---

Fog.h

/*
  File: Fog.h

  Copyright(C) C. Kotterink, Computed Graphics
*/
#ifndef FOG_H
#define FOG_H

#include<DynamicObject.h>
#include<ObjectFile.h>
#include<Color4.h>

#include<real.h>

class Fog : public DynamicObject
{
    DYNAMIC_OBJECT;
public:
    typedef enum Type {
        Linear,
        Exp,
        Exp2,
    };
    Fog();

    real getEnd() { return end; }
    void apply(Color4 &c, real z);
    real fogValue(real z);

    // Inherited from DynamicObject
    void parseSymbol(Token &t, ObjectFile &file);
    void writeParams(ostream &stream);

protected:
    static const real End= 1.0e5;

    // Inherited from DynamicObject
    void createSymbols();

    Color4 color;
    real start;
    real end;
    real density;
    Type type;

private:
    typedef DynamicObject super;
};
#endif

---

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