VTK  9.1.0
vtkSobelGradientMagnitudePass.h
Go to the documentation of this file.
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=========================================================================*/
60#ifndef vtkSobelGradientMagnitudePass_h
61#define vtkSobelGradientMagnitudePass_h
62
64#include "vtkRenderingOpenGL2Module.h" // For export macro
65
66class vtkDepthPeelingPassLayerList; // Pimpl
68class vtkOpenGLHelper;
71
72class VTKRENDERINGOPENGL2_EXPORT vtkSobelGradientMagnitudePass : public vtkImageProcessingPass
73{
74public:
77 void PrintSelf(ostream& os, vtkIndent indent) override;
78
83 void Render(const vtkRenderState* s) override;
84
91
92protected:
97
102
107 vtkTextureObject* Pass1; // render target for the scene
108 vtkTextureObject* Gx1; // render target 0 for the first shader
109 vtkTextureObject* Gy1; // render target 1 for the first shader
110
111 // Structures for the various cell types we render.
112 vtkOpenGLHelper* Program1; // shader to compute Gx1 and Gy1
113 vtkOpenGLHelper* Program2; // shader to compute |G| from Gx1 and Gy1
114
115private:
117 void operator=(const vtkSobelGradientMagnitudePass&) = delete;
118};
119
120#endif
Convenient class for post-processing passes.
a simple class to control print indentation
Definition: vtkIndent.h:113
Internal class which encapsulates OpenGL FramebufferObject.
OpenGL rendering window.
Context in which a vtkRenderPass will render.
Implement a post-processing edge detection with a Sobel gradient magnitude render pass.
vtkSobelGradientMagnitudePass()
Default constructor.
void Render(const vtkRenderState *s) override
Perform rendering according to a render state s.
void ReleaseGraphicsResources(vtkWindow *w) override
Release graphics resources and ask components to release their own resources.
vtkOpenGLFramebufferObject * FrameBufferObject
Graphics resources.
~vtkSobelGradientMagnitudePass() override
Destructor.
void PrintSelf(ostream &os, vtkIndent indent) override
Methods invoked by print to print information about the object including superclasses.
static vtkSobelGradientMagnitudePass * New()
abstracts an OpenGL texture object.
window superclass for vtkRenderWindow
Definition: vtkWindow.h:39