mitkVolumeRendererTexture3D.h

/*=========================================================================

  Program:   3DMed
  Date:      $Date: 2014-02-25 18:30:00 +0800 $
  Version:   $Version: 4.6.0 $
  Copyright: MIPG, Institute of Automation, Chinese Academy of Sciences

=========================================================================*/


#ifndef __mitkVolumeRendererTexture3D_h
#define __mitkVolumeRendererTexture3D_h

#include "mitkVolumeRenderer.h"
#include "mitkGeometryTypes.h"
#include "mitkEncodedGradientEstimator.h"
#include "mitkEncodedGradientShader.h"

typedef struct _polygon_type
{
    Point3f verts[6];
    Point3f texCoords[6];
    unsigned char vertNum;
} TexPolygon;

class MITK_VISUALIZATION_API mitkVolumeRendererTexture3D : public mitkVolumeRenderer
{
public:
    MITK_TYPE(mitkVolumeRendererTexture3D, mitkVolumeRenderer)

    virtual void PrintSelf(ostream &os);

    mitkVolumeRendererTexture3D();
    
    virtual int Render(mitkScene *scene, mitkVolumeModel *vol);

    void SetSampleDistance(float sd) 
    { m_SampleDistance = sd; m_AutoAdjustSampleDistance = false; }

    void EnableAutoSampleDistance() { m_AutoAdjustSampleDistance = true; }

    void SetGradientEstimator(mitkEncodedGradientEstimator *gradest);

    mitkEncodedGradientEstimator* GetGradientEstimator(){return m_GradientEstimator;};



protected:
    virtual ~mitkVolumeRendererTexture3D();

    bool _buildDummyTexture(int dims[3]);
    bool _buildTexture(mitkVolumeModel *vol);
    bool _buildShadedTexture(mitkScene *scene, mitkVolumeModel *vol);
    void _deleteTexture();
    void _clearTexPolygons();

    mitkRCPtr<mitkEncodedGradientEstimator> m_GradientEstimator;
    mitkRCPtr<mitkEncodedGradientShader> m_GradientShader;

    unsigned int m_TexID;

    int m_DummyTexWidth;
    int m_DummyTexHeight;
    int m_DummyTexDepth;

    float m_SampleDistance;

    int m_Shading;

    unsigned int m_PolyNum;
    unsigned int m_PolyArraySize;
    TexPolygon *m_Polygons;

    unsigned char *m_GradientMagnitudes;
    unsigned short *m_EncodedNormals;

    unsigned int m_TexBufSize;
    unsigned char *m_TexBuf;

    bool m_IsTex3DSupported;
    bool m_AutoAdjustSampleDistance;
    bool m_FirstRendering;

private:
    mitkVolumeRendererTexture3D(const mitkVolumeRendererTexture3D&);
    void operator = (const mitkVolumeRendererTexture3D&);

};


//#define DEFINED_mitkVolumeRendererTexture3D



#endif

---