CVoxelObject.h

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//==============================================================================
/*
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    \author    <http://www.chai3d.org>
    \author    Sonny Chan
    \author    Francois Conti
    \version   3.2.0 $Rev: 2171 $
*/
//==============================================================================

//------------------------------------------------------------------------------
#ifndef CVoxelObjectH
#define CVoxelObjectH
//------------------------------------------------------------------------------
#include "world/CMesh.h"
#include "world/CMultiMesh.h"
//------------------------------------------------------------------------------

//------------------------------------------------------------------------------
namespace chai3d {
//------------------------------------------------------------------------------
const int C_NUM_VOXEL_RENDERING_MODES = 9;
//------------------------------------------------------------------------------

//==============================================================================
//==============================================================================


//------------------------------------------------------------------------------
#ifndef DOXYGEN_SHOULD_SKIP_THIS
//------------------------------------------------------------------------------

struct cVoxelCoord
{
    int m_x;
    int m_y;
    int m_z;
};

struct cVoxelCoordList
{
    int m_radiusX;
    int m_radiusY;
    int m_radiusZ;
    std::vector<cVoxelCoord> m_coords;
};

//------------------------------------------------------------------------------
#endif  // DOXYGEN_SHOULD_SKIP_THIS
//------------------------------------------------------------------------------


//==============================================================================
//==============================================================================
class cVoxelObject : public cMesh
{
    //--------------------------------------------------------------------------
    // CONSTRUCTOR & DESTRUCTOR:
    //--------------------------------------------------------------------------

public:

    cVoxelObject();

    virtual ~cVoxelObject();


    //--------------------------------------------------------------------------
    // PUBLIC METHODS - RENDERING MODES:
    //--------------------------------------------------------------------------

public:

    void setRenderingModeBasic();

    void setRenderingModeVoxelColors();

    void setRenderingModeVoxelColorMap();

    void setRenderingModeIsosurfaceMaterial();

    void setRenderingModeIsosurfaceColors();

    void setRenderingModeIsosurfaceColorMap();

    void setRenderingModeDVRColorMap();

    void setRenderingModeCustom();


    //--------------------------------------------------------------------------
    // PUBLIC METHODS - SETTINGS:
    //--------------------------------------------------------------------------

public:

    void setQuality(const double a_quality) { m_quality = cClamp(a_quality, 0.1, 10.0); }

    double getQuality() { return (m_quality); }

    void setIsosurfaceValue(const float a_isosurfaceValue) { m_isosurfaceValue = cClamp(a_isosurfaceValue, 0.0f, 1.0f); }

    float getIsosurfaceValue() { return (m_isosurfaceValue); }

    void setVoxelOpacity(const float a_voxelOpacity) { m_voxelOpacity = cClamp(a_voxelOpacity, 0.0f, 1.0f); }

    float getVoxelOpacity() { return(m_voxelOpacity); }

    void setOpacityThreshold(const float a_opacityThreshold) { m_opacityThreshold = cClamp(a_opacityThreshold, 0.0f, 1.0f); }

    float getOpacityThreshold() { return(m_opacityThreshold); }

    void setOpticalDensity(const float a_opticalDensity) { m_opticalDensity = fabs(a_opticalDensity); }

    float getOpticalDensity() { return(m_opacityThreshold); }

    void setUseLinearInterpolation(const bool a_useLinearInterpolation) { m_useLinearInterpolation = a_useLinearInterpolation; }

    bool getUseLinearInterpolation() { return (m_useLinearInterpolation); }

    void setUseColorMap(const bool a_useColorMap) { m_useColorMap = a_useColorMap; }

    bool getUseColorMap() const { return m_useColorMap; }


    //--------------------------------------------------------------------------
    // PUBLIC METHODS - POLYGONIZATION:
    //--------------------------------------------------------------------------

public:

    bool polygonize(cMesh* a_mesh, double a_gridSizeX = -1.0, double a_gridSizeY = -1.0, double a_gridSizeZ = -1.0);

    bool polygonize(cMultiMesh* a_multiMesh, double a_gridSizeX = -1.0, double a_gridSizeY = -1.0, double a_gridSizeZ = -1.0);


    //--------------------------------------------------------------------------
    // PUBLIC MEMBERS:
    //--------------------------------------------------------------------------

public:

    cVector3d m_minCorner;

    cVector3d m_maxCorner;

    cVector3d m_minTextureCoord;

    cVector3d m_maxTextureCoord;

    cTexture1dPtr m_colorMap;


    //--------------------------------------------------------------------------
    // PROTECTED METHODS:
    //--------------------------------------------------------------------------

protected:

    void loadRenderingShaders();

    void update(cRenderOptions& a_options);

    virtual void render(cRenderOptions& a_options);

    virtual bool computeOtherCollisionDetection(cVector3d& a_segmentPointA,
        cVector3d& a_segmentPointB,
        cCollisionRecorder& a_recorder,
        cCollisionSettings& a_settings);


    //--------------------------------------------------------------------------
    // PROTECTED MEMBERS:
    //--------------------------------------------------------------------------

protected:

    cVector3d m_edges[12][2];

    double m_quality;

    float m_isosurfaceValue;

    float m_voxelOpacity;

    float  m_opacityThreshold;

    float m_opticalDensity;

    int m_renderingMode;

    bool m_useLinearInterpolation;

    bool m_useColorMap;

    std::vector<cVoxelCoordList> m_voxelCoordList;


    //--------------------------------------------------------------------------
    // PROTECTED MEMBERS - SHADERS:
    //--------------------------------------------------------------------------

protected:

    bool m_flagShadersInitialized;

    cShaderPtr m_vertexShaders[C_NUM_VOXEL_RENDERING_MODES];

    cShaderPtr m_fragmentShaders[C_NUM_VOXEL_RENDERING_MODES];

    cShaderProgramPtr m_programShaders[C_NUM_VOXEL_RENDERING_MODES];
};

//------------------------------------------------------------------------------
} // namespace chai3d
//------------------------------------------------------------------------------

//------------------------------------------------------------------------------
#endif
//------------------------------------------------------------------------------