GaussianFilterShader.h

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//    Copyright 2004-2019, SenseGraphics AB
//
//    Any use, or distribution, of this file without permission from the
//    copyright holders is strictly prohibited. Please contact SenseGraphics,
//    www.sensegraphics.com, for more information.
//
//
//
#ifndef __GAUSSIANFILTERSHADER_H__
#define __GAUSSIANFILTERSHADER_H__
 
#include <H3D/MFFloat.h>
#include <H3D/ConvolutionFilterShader.h>
 
namespace H3D {
  class H3DAPI_API GaussianFilterShader : 
    public ConvolutionFilterShader {
  public:
      
    class H3DAPI_API MFWeights : 
        public TypedField< MFFloat, void,  AnyNumber< Field > > {
        protected:
          virtual void update();
        };
 
    GaussianFilterShader( Inst< DisplayList  > _displayList = 0,
                          Inst< SFNode       > _metadata    = 0,
                          Inst< SFBool       > _isSelected  = 0,
                          Inst< SFBool       > _isValid     = 0,
                          Inst< SFBool       > _activate    = 0,
                          Inst< SFString     > _language    = 0,
                          Inst< MFShaderPart > _parts       = 0,
                          Inst< SFBool       > _suppressUniformWarnings = 0,
                          Inst< MFString     > _fragmentShaderString    = 0,
                          Inst< MFString     > _vertexShaderString      = 0,
                          Inst< SFTexture2DNode > _texture = 0,
                          Inst< SFString     > _type        = 0,
                          Inst< MFWeights      > _weights     = 0,
                          Inst< SFInt32      > _kernelSize  = 0,
                          Inst< SFFloat      > _sigma  = 0,
                          Inst< SFFloat      > _pixelStepOffset = 0,
                          Inst< SFInt32> _width = 0,
                          Inst< SFInt32> _height = 0,
                          Inst< TextureMonitor> _widthInUse = 0,
                          Inst< TextureMonitor> _heightInUse = 0);
 
    H3DUniquePtr< SFFloat > sigma;
 
 
    static H3DNodeDatabase database;
  protected:
 
    virtual bool canBuildShader();
    std::vector<float> gauss2D( int x, int y, float _sigma );
    std::vector<float> gauss1D( int x, float _sigma );
 
    //virtual void generateKernel();
 
 
 
  };
}
 
#endif