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vtkSobelGradientMagnitudePass.h
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1 /*=========================================================================
2 
3  Program: Visualization Toolkit
4  Module: vtkSobelGradientMagnitudePass.h
5 
6  Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
7  All rights reserved.
8  See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
9 
10  This software is distributed WITHOUT ANY WARRANTY; without even
11  the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
12  PURPOSE. See the above copyright notice for more information.
13 
14 =========================================================================*/
63 #ifndef vtkSobelGradientMagnitudePass_h
64 #define vtkSobelGradientMagnitudePass_h
65 
66 #include "vtkRenderingOpenGLModule.h" // For export macro
67 #include "vtkImageProcessingPass.h"
68 
70 class vtkDepthPeelingPassLayerList; // Pimpl
71 class vtkShaderProgram2;
72 class vtkShader2;
74 class vtkTextureObject;
75 
76 class VTKRENDERINGOPENGL_EXPORT vtkSobelGradientMagnitudePass : public vtkImageProcessingPass
77 {
78 public:
81  void PrintSelf(ostream& os, vtkIndent indent);
82 
87  virtual void Render(const vtkRenderState *s);
88 
95 
96  protected:
101 
106 
111  vtkTextureObject *Pass1; // render target for the scene
112  vtkTextureObject *Gx1; // render target 0 for the first shader
113  vtkTextureObject *Gy1; // render target 1 for the first shader
114  vtkShaderProgram2 *Program1; // shader to compute Gx1 and Gy1
115  vtkShaderProgram2 *Program2; // shader to compute |G| from Gx1 and Gy1
116 
117  private:
119  void operator=(const vtkSobelGradientMagnitudePass&) VTK_DELETE_FUNCTION;
120 };
121 
122 #endif
vtkFrameBufferObject
internal class which encapsulates OpenGL frame buffer object.
Definition: vtkFrameBufferObject.h:47
vtkImageProcessingPass.h
vtkSobelGradientMagnitudePass::Pass1
vtkTextureObject * Pass1
Definition: vtkSobelGradientMagnitudePass.h:111
vtkSobelGradientMagnitudePass::PrintSelf
void PrintSelf(ostream &os, vtkIndent indent)
Methods invoked by print to print information about the object including superclasses.
vtkSobelGradientMagnitudePass::~vtkSobelGradientMagnitudePass
virtual ~vtkSobelGradientMagnitudePass()
Destructor.
vtkSobelGradientMagnitudePass::Program1
vtkShaderProgram2 * Program1
Definition: vtkSobelGradientMagnitudePass.h:114
vtkSobelGradientMagnitudePass::Program2
vtkShaderProgram2 * Program2
Definition: vtkSobelGradientMagnitudePass.h:115
vtkSobelGradientMagnitudePass::FrameBufferObject
vtkFrameBufferObject * FrameBufferObject
Graphics resources.
Definition: vtkSobelGradientMagnitudePass.h:110
vtkWindow
window superclass for vtkRenderWindow
Definition: vtkWindow.h:35
vtkSobelGradientMagnitudePass::Gx1
vtkTextureObject * Gx1
Definition: vtkSobelGradientMagnitudePass.h:112
vtkIndent
a simple class to control print indentation
Definition: vtkIndent.h:40
vtkTextureObject
abstracts an OpenGL texture object.
Definition: vtkTextureObject.h:44
vtkSobelGradientMagnitudePass::vtkSobelGradientMagnitudePass
vtkSobelGradientMagnitudePass()
Default constructor.
vtkSobelGradientMagnitudePass
Implement a post-processing edge detection with a Sobel gradient magnitude render pass.
Definition: vtkSobelGradientMagnitudePass.h:77
vtkSobelGradientMagnitudePass::ReleaseGraphicsResources
void ReleaseGraphicsResources(vtkWindow *w)
Release graphics resources and ask components to release their own resources.
vtkSobelGradientMagnitudePass::Render
virtual void Render(const vtkRenderState *s)
Perform rendering according to a render state s.
vtkShaderProgram2
GLSL Program.
Definition: vtkShaderProgram2.h:69
vtkSobelGradientMagnitudePass::New
static vtkSobelGradientMagnitudePass * New()
vtkShader2
GLSL Shader.
Definition: vtkShader2.h:63
vtkSobelGradientMagnitudePass::Gy1
vtkTextureObject * Gy1
Definition: vtkSobelGradientMagnitudePass.h:113
vtkOpenGLRenderWindow
OpenGL rendering window.
Definition: vtkOpenGLRenderWindow.h:42
vtkRenderState
Context in which a vtkRenderPass will render.
Definition: vtkRenderState.h:41
vtkImageProcessingPass
Convenient class for post-processing passes.
Definition: vtkImageProcessingPass.h:41