vtkOutlineGlowPass.h

Go to the documentation of this file.

/*=========================================================================
 
  Program:   Visualization Toolkit
  Module:    vtkOutlineGlowPass.h
 
  Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
  All rights reserved.
  See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
 
     This software is distributed WITHOUT ANY WARRANTY; without even
     the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
     PURPOSE.  See the above copyright notice for more information.
 
=========================================================================*/
#ifndef vtkOutlineGlowPass_h
#define vtkOutlineGlowPass_h
 
#include "vtkImageProcessingPass.h"
#include "vtkRenderingOpenGL2Module.h" // For export macro
 
class vtkOpenGLFramebufferObject;
class vtkOpenGLHelper;
class vtkTextureObject;
 
class VTKRENDERINGOPENGL2_EXPORT vtkOutlineGlowPass : public vtkImageProcessingPass
{
public:
  static vtkOutlineGlowPass* New();
  vtkTypeMacro(vtkOutlineGlowPass, vtkImageProcessingPass);
  void PrintSelf(ostream& os, vtkIndent indent) override;
 
  void Render(const vtkRenderState* s) override;
 
  void ReleaseGraphicsResources(vtkWindow* w) override;
 
  vtkGetMacro(OutlineIntensity, float);
  vtkSetMacro(OutlineIntensity, float);
 
protected:
  vtkOutlineGlowPass();
 
  ~vtkOutlineGlowPass() override;
 
  vtkOpenGLFramebufferObject* FrameBufferObject;
  vtkTextureObject* ScenePass; // render target for the original scene
  vtkTextureObject* BlurPass1; // render target for vertical blur
  vtkTextureObject* BlurPass2; // render target for horizontal blur
 
  // Shader programs
  vtkOpenGLHelper* BlurProgram;
  vtkOpenGLHelper* UpscaleProgram;
 
  // Default value of 3.0 gives a bright outline with a fading edge
  float OutlineIntensity = 3.0f;
 
private:
  vtkOutlineGlowPass(const vtkOutlineGlowPass&) = delete;
  void operator=(const vtkOutlineGlowPass&) = delete;
};
 
#endif /* vtkOutlineGlowPass_h */