PrimitiveMetadata.h

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#pragma once
 
#include "Core/SurfaceBehavior/SurfaceBehavior.h"
#include "Math/Transform/StaticAffineTransform.h"
#include "Core/Intersection/UvwMapper/UvwMapper.h"
#include "Core/Intersection/PrimitiveChannel.h"
#include "Core/VolumeBehavior/VolumeBehavior.h"
 
#include <Common/assertion.h>
 
#include <memory>
#include <vector>
 
namespace ph
{
 
class PrimitiveMetadata final
{
public:
    static constexpr auto INVALID_CHANNEL_ID = static_cast<uint8>(-1);
    static constexpr auto DEFAULT_CHANNEL_ID = static_cast<uint8>( 0);
 
    PrimitiveMetadata();
 
    uint8 addChannel(const PrimitiveChannel& channel);
 
    void setChannel(uint8 channelId, PrimitiveChannel channel);
    const PrimitiveChannel& getChannel(uint8 channelId) const;
    const PrimitiveChannel& getDefaultChannel() const;
    bool isChannelIdValid(uint8 channelId) const;
 
    SurfaceBehavior& getSurface();
    VolumeBehavior& getInterior();
    VolumeBehavior& getExterior();
 
    const SurfaceBehavior& getSurface() const;
    const VolumeBehavior& getInterior() const;
    const VolumeBehavior& getExterior() const;
 
private:
    SurfaceBehavior               m_surface;
    VolumeBehavior                m_interior;
    VolumeBehavior                m_exterior;
    std::vector<PrimitiveChannel> m_channels;
};
 
inline const PrimitiveChannel& PrimitiveMetadata::getChannel(const uint8 channelId) const
{
    if(isChannelIdValid(channelId))
    {
        return m_channels[channelId];
    }
    else
    {
        return getDefaultChannel();
    }
}
 
inline const PrimitiveChannel& PrimitiveMetadata::getDefaultChannel() const
{
    return getChannel(DEFAULT_CHANNEL_ID);
}
 
inline bool PrimitiveMetadata::isChannelIdValid(const uint8 channelId) const
{
    return channelId < m_channels.size();
}
 
inline SurfaceBehavior& PrimitiveMetadata::getSurface()
{
    return m_surface;
}
 
inline VolumeBehavior& PrimitiveMetadata::getInterior()
{
    return m_interior;
}
 
inline VolumeBehavior& PrimitiveMetadata::getExterior()
{
    return m_exterior;
}
 
inline const SurfaceBehavior& PrimitiveMetadata::getSurface() const
{
    return m_surface;
}
 
inline const VolumeBehavior& PrimitiveMetadata::getInterior() const
{
    return m_interior;
}
 
inline const VolumeBehavior& PrimitiveMetadata::getExterior() const
{
    return m_exterior;
}
 
}// end namespace ph