VTK  9.3.0
vtkSobelGradientMagnitudePass.h
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1// SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
2// SPDX-License-Identifier: BSD-3-Clause
51#ifndef vtkSobelGradientMagnitudePass_h
52#define vtkSobelGradientMagnitudePass_h
53
55#include "vtkRenderingOpenGL2Module.h" // For export macro
56
57VTK_ABI_NAMESPACE_BEGIN
58class vtkDepthPeelingPassLayerList; // Pimpl
60class vtkOpenGLHelper;
63
64class VTKRENDERINGOPENGL2_EXPORT vtkSobelGradientMagnitudePass : public vtkImageProcessingPass
65{
66public:
69 void PrintSelf(ostream& os, vtkIndent indent) override;
70
75 void Render(const vtkRenderState* s) override;
76
83
84protected:
89
94
99 vtkTextureObject* Pass1; // render target for the scene
100 vtkTextureObject* Gx1; // render target 0 for the first shader
101 vtkTextureObject* Gy1; // render target 1 for the first shader
102
103 // Structures for the various cell types we render.
104 vtkOpenGLHelper* Program1; // shader to compute Gx1 and Gy1
105 vtkOpenGLHelper* Program2; // shader to compute |G| from Gx1 and Gy1
106
107private:
109 void operator=(const vtkSobelGradientMagnitudePass&) = delete;
110};
111
112VTK_ABI_NAMESPACE_END
113#endif
Convenient class for post-processing passes.
a simple class to control print indentation
Definition vtkIndent.h:29
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:25