AIesAttenuatedLight.h

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#pragma once
 
#include "Actor/Light/ALight.h"
#include "DataIO/FileSystem/ResourceIdentifier.h"
#include "DataIO/FileSystem/Path.h"
#include "SDL/sdl_interface.h"
#include "Core/Texture/TTexture.h"
#include "Math/Color/Spectrum.h"
 
#include <memory>
 
namespace ph
{
 
class AIesAttenuatedLight : public ALight
{
public:
    PreCookReport preCook(const CookingContext& ctx) const override;
    TransientVisualElement cook(const CookingContext& ctx, const PreCookReport& report) const override;
 
    void setSource(const std::shared_ptr<ALight>& source);
    void setIesFile(const Path& iesFile);
 
private:
    TransientVisualElement getSourceVisualElement(const CookingContext& ctx) const;
    std::shared_ptr<TTexture<math::Spectrum>> loadAttenuationTexture() const;
 
    std::shared_ptr<ALight> m_source;
    ResourceIdentifier m_iesFile;
 
public:
    PH_DEFINE_SDL_CLASS(TSdlOwnerClass<AIesAttenuatedLight>)
    {
        ClassType clazz("ies-attenuated-light");
        clazz.docName("IES-Attenuated Light Actor");
        clazz.description(
            "Attenuating energy emitting strength of a light with an IES profile.");
        clazz.baseOn<ALight>();
 
        TSdlReference<ALight, OwnerType> source("source", &OwnerType::m_source);
        source.description("The light source that will be attenuated.");
        source.optional();
        clazz.addField(source);
 
        TSdlResourceIdentifier<OwnerType> iesFile("ies-file", &OwnerType::m_iesFile);
        iesFile.description("The IES file.");
        iesFile.required();
        clazz.addField(iesFile);
 
        return clazz;
    }
};
 
}// end namespace ph