FogVolume.h

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#pragma once
#include "common/Export.h"
 
 
#include <string>
 
#include <glm/vec3.hpp>
 
namespace eve::graphics {
 
class EVENGINE_API_BACKENDS FogVolume {
public:
    enum class Shape { sphere, box, cylinder };
 
    void setShape(const std::string &shape);
    Shape getShape() const { return shape_; }
    std::string getShapeName() const;
 
    void setPosition(float x, float y, float z) { position_ = {x, y, z}; }
    const glm::vec3 &getPosition() const { return position_; }
    void setSize(float x, float y, float z);
    const glm::vec3 &getSize() const { return size_; }
 
    void setExtinction(float extinction) { extinction_ = extinction; }
    float getExtinction() const { return extinction_; }
    void setAlbedo(float r, float g, float b);
    const glm::vec3 &getAlbedo() const { return albedo_; }
    void setEmissive(float r, float g, float b);
    const glm::vec3 &getEmissive() const { return emissive_; }
    void setAnisotropy(float anisotropy);
    float getAnisotropy() const { return anisotropy_; }
    void setEdgeFalloff(float falloff);
    float getEdgeFalloff() const { return edgeFalloff_; }
    void setNoise(float amount, float scale, int seed);
    float getNoiseAmount() const { return noiseAmount_; }
    float getNoiseScale() const { return noiseScale_; }
    int getNoiseSeed() const { return noiseSeed_; }
 
    float sampleExtinction(const glm::vec3 &worldPosition) const;
 
private:
    Shape shape_ = Shape::box;
    glm::vec3 position_{0.f};
    glm::vec3 size_{1.f};
    float extinction_ = 0.05f;
    glm::vec3 albedo_{1.f};
    glm::vec3 emissive_{0.f};
    float anisotropy_ = 0.f;
    float edgeFalloff_ = 0.2f;
    float noiseAmount_ = 0.f;
    float noiseScale_ = 1.f;
    int noiseSeed_ = 0;
};
 
}  // namespace eve::graphics