DRRStage.hpp

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/*
 *  Copyright (C) 2010 - 2016 Leonid Kostrykin
 *
 *  Chair of Medical Engineering (mediTEC)
 *  RWTH Aachen University
 *  Pauwelsstr. 20
 *  52074 Aachen
 *  Germany
 * 
 * 
 *  Copyright (C) 2021 - 2025 Leonid Kostrykin
 * 
 */
 
#ifndef DRRSTAGE_H_6014714286
#define DRRSTAGE_H_6014714286
 
#include <LibCarna/presets/VolumeRenderingStage.hpp>
#include <LibCarna/LibCarna.hpp>
#include <LibCarna/base/HUV.hpp>
#include <memory>
 
namespace LibCarna
{
 
namespace presets
{
 
 
 
// ----------------------------------------------------------------------------------
// DRRStage
// ----------------------------------------------------------------------------------
 
class LIBCARNA DRRStage : public VolumeRenderingStage
{
 
    struct Details;
    const std::unique_ptr< Details > pimpl;
 
public:
 
    const static float      DEFAULT_WATER_ATTENUATION;  
    const static float      DEFAULT_BASE_INTENSITY;     
    const static base::HUV  DEFAULT_LOWER_THRESHOLD;    
    const static base::HUV  DEFAULT_UPPER_THRESHOLD;    
    const static float      DEFAULT_UPPER_MULTIPLIER;   
    const static bool       DEFAULT_RENDER_INVERSE;     
 
    const static unsigned int ROLE_INTENSITIES = 0;
    
    explicit DRRStage( unsigned int geometryType );
 
    virtual ~DRRStage();
 
    virtual void reshape( base::FrameRenderer& fr, unsigned int width, unsigned int height ) override;
 
    virtual void renderPass
        ( const base::math::Matrix4f& viewTransform
        , base::RenderTask& rt
        , const base::Viewport& vp ) override;
 
    float waterAttenuation() const;
 
    float baseIntensity() const;
    
    base::HUV lowerThreshold() const;
    
    base::HUV upperThreshold() const;
    
    float upperMultiplier() const;
 
    bool isRenderingInverse() const;
    
    void setWaterAttenuation( float muWater );
    
    void setBaseIntensity( float baseIntensity );
    
    void setLowerThreshold( base::HUV lower );
    
    void setUpperThreshold( base::HUV upper );
    
    void setUpperMultiplier( float multiplier );
 
    void setRenderingInverse( bool inverse );
 
protected:
 
    virtual unsigned int loadVideoResources() override;
 
    virtual void createVolumeSamplers( const std::function< void( unsigned int, base::Sampler* ) >& registerSampler ) override;
 
    virtual const base::ShaderProgram& acquireShader() override;
 
    virtual const std::string& uniformName( unsigned int role ) const override;
 
    virtual void configureShader() override;
 
    virtual void configureShader( const base::Renderable& ) override;
 
}; // DRRStage
 
 
 
}  // namespace LibCarna :: presets
 
}  // namespace LibCarna
 
#endif // DRRSTAGE_H_6014714286