VTK  9.2.6
vtkSSAOPass.h
Go to the documentation of this file.
1/*=========================================================================
2
3 Program: Visualization Toolkit
4 Module: vtkSSAOPass.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=========================================================================*/
32#ifndef vtkSSAOPass_h
33#define vtkSSAOPass_h
34
36#include "vtkRenderingOpenGL2Module.h" // For export macro
37
38#include <vector> // For vector
39
40class vtkMatrix4x4;
44
45class VTKRENDERINGOPENGL2_EXPORT vtkSSAOPass : public vtkImageProcessingPass
46{
47public:
48 static vtkSSAOPass* New();
50 void PrintSelf(ostream& os, vtkIndent indent) override;
51
55 void Render(const vtkRenderState* s) override;
56
61
65 bool PreReplaceShaderValues(std::string& vertexShader, std::string& geometryShader,
66 std::string& fragmentShader, vtkAbstractMapper* mapper, vtkProp* prop) override;
67
71 bool PostReplaceShaderValues(std::string& vertexShader, std::string& geometryShader,
72 std::string& fragmentShader, vtkAbstractMapper* mapper, vtkProp* prop) override;
73
78 vtkOpenGLVertexArrayObject* VAO = nullptr) override;
79
81
85 vtkGetMacro(Radius, double);
86 vtkSetMacro(Radius, double);
88
90
94 vtkGetMacro(KernelSize, unsigned int);
95 vtkSetClampMacro(KernelSize, unsigned int, 1, 1000);
97
99
103 vtkGetMacro(Bias, double);
104 vtkSetMacro(Bias, double);
106
108
113 vtkGetMacro(Blur, bool);
114 vtkSetMacro(Blur, bool);
115 vtkBooleanMacro(Blur, bool);
117
118protected:
119 vtkSSAOPass() = default;
120 ~vtkSSAOPass() override = default;
121
124
125 void RenderDelegate(const vtkRenderState* s, int w, int h);
126 void RenderSSAO(vtkOpenGLRenderWindow* renWin, vtkMatrix4x4* projection, int w, int h);
128
129 vtkTextureObject* ColorTexture = nullptr;
130 vtkTextureObject* PositionTexture = nullptr;
131 vtkTextureObject* NormalTexture = nullptr;
132 vtkTextureObject* SSAOTexture = nullptr;
133 vtkTextureObject* DepthTexture = nullptr;
134
135 vtkOpenGLFramebufferObject* FrameBufferObject = nullptr;
136
137 vtkOpenGLQuadHelper* SSAOQuadHelper = nullptr;
138 vtkOpenGLQuadHelper* CombineQuadHelper = nullptr;
139
140 std::vector<float> Kernel;
141 unsigned int KernelSize = 32;
142 double Radius = 0.5;
143 double Bias = 0.01;
144 bool Blur = false;
145
146private:
147 vtkSSAOPass(const vtkSSAOPass&) = delete;
148 void operator=(const vtkSSAOPass&) = delete;
149};
150
151#endif
abstract class specifies interface to map data
Convenient class for post-processing passes.
a simple class to control print indentation
Definition: vtkIndent.h:40
represent and manipulate 4x4 transformation matrices
Definition: vtkMatrix4x4.h:42
Internal class which encapsulates OpenGL FramebufferObject.
Class to make rendering a full screen quad easier.
OpenGL rendering window.
The VertexArrayObject class uses, or emulates, vertex array objects.
abstract superclass for all actors, volumes and annotations
Definition: vtkProp.h:57
Context in which a vtkRenderPass will render.
Implement a screen-space ambient occlusion pass.
Definition: vtkSSAOPass.h:46
static vtkSSAOPass * New()
bool PostReplaceShaderValues(std::string &vertexShader, std::string &geometryShader, std::string &fragmentShader, vtkAbstractMapper *mapper, vtkProp *prop) override
Post replace shader values.
void PrintSelf(ostream &os, vtkIndent indent) override
Methods invoked by print to print information about the object including superclasses.
vtkSSAOPass()=default
bool PreReplaceShaderValues(std::string &vertexShader, std::string &geometryShader, std::string &fragmentShader, vtkAbstractMapper *mapper, vtkProp *prop) override
Pre replace shader values.
~vtkSSAOPass() override=default
void RenderDelegate(const vtkRenderState *s, int w, int h)
void Render(const vtkRenderState *s) override
Perform rendering according to a render state.
void RenderCombine(vtkOpenGLRenderWindow *renWin)
void InitializeGraphicsResources(vtkOpenGLRenderWindow *renWin, int w, int h)
void ComputeKernel()
void ReleaseGraphicsResources(vtkWindow *w) override
Release graphics resources and ask components to release their own resources.
std::vector< float > Kernel
Definition: vtkSSAOPass.h:140
void RenderSSAO(vtkOpenGLRenderWindow *renWin, vtkMatrix4x4 *projection, int w, int h)
bool SetShaderParameters(vtkShaderProgram *program, vtkAbstractMapper *mapper, vtkProp *prop, vtkOpenGLVertexArrayObject *VAO=nullptr) override
Set shader parameters.
Computes the portion of a dataset which is inside a selection.
The ShaderProgram uses one or more Shader objects.
abstracts an OpenGL texture object.
window superclass for vtkRenderWindow
Definition: vtkWindow.h:39