VTK  9.2.6
vtkShadowMapBakerPass.h
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1/*=========================================================================
2
3 Program: Visualization Toolkit
4 Module: vtkShadowMapBakerPass.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=========================================================================*/
43
44#ifndef vtkShadowMapBakerPass_h
45#define vtkShadowMapBakerPass_h
46
47#include "vtkOpenGLRenderPass.h"
48#include "vtkRenderingOpenGL2Module.h" // For export macro
49#include "vtkSmartPointer.h" // for ivars
50#include <vector> // STL Header
51
54class vtkCamera;
55class vtkLight;
58
59class VTKRENDERINGOPENGL2_EXPORT vtkShadowMapBakerPass : public vtkOpenGLRenderPass
60{
61public:
64 void PrintSelf(ostream& os, vtkIndent indent) override;
65
70 void Render(const vtkRenderState* s) override;
71
78
80
86 vtkGetObjectMacro(OpaqueSequence, vtkRenderPass);
87 virtual void SetOpaqueSequence(vtkRenderPass* opaqueSequence);
89
91
97 vtkGetObjectMacro(CompositeZPass, vtkRenderPass);
98 virtual void SetCompositeZPass(vtkRenderPass* compositeZPass);
100
102
107 vtkSetMacro(Resolution, unsigned int);
108 vtkGetMacro(Resolution, unsigned int);
110
119
130
137 std::vector<vtkSmartPointer<vtkTextureObject>>* GetShadowMaps();
138
145 std::vector<vtkSmartPointer<vtkCamera>>* GetLightCameras();
146
156
157 // // Description:
158 // INTERNAL USE ONLY.
159 // Internally used by vtkShadowMapBakerPass and vtkShadowMapPass.
160 //
161 // Set NeedUpate to false. Called by vtkShadowMapPass.
163
164protected:
169
174
175 // vtkOpenGLRenderPass virtuals:
176 bool PreReplaceShaderValues(std::string& vertexShader, std::string& geometryShader,
177 std::string& fragmentShader, vtkAbstractMapper* mapper, vtkProp* prop) override;
179 vtkOpenGLVertexArrayObject* VAO = nullptr) override;
180
189 double* v, double* pt, double* dir, double& mNear, double& mFar, bool initialized);
190
197 void BoxNearFar(double* bb, double* pt, double* dir, double& mNear, double& mFar);
198
204 void BuildCameraLight(vtkLight* light, double* boundingBox, vtkCamera* lcamera);
205
211
213
215
216 unsigned int Resolution;
217
219
224
225 std::vector<vtkSmartPointer<vtkTextureObject>>* ShadowMaps;
226 std::vector<vtkSmartPointer<vtkCamera>>* LightCameras;
227
231
232private:
234 void operator=(const vtkShadowMapBakerPass&) = delete;
235};
236
237#endif
abstract class specifies interface to map data
a virtual camera for 3D rendering
Definition vtkCamera.h:52
a simple class to control print indentation
Definition vtkIndent.h:40
Key for integer values in vtkInformation.
a virtual light for 3D rendering
Definition vtkLight.h:60
Internal class which encapsulates OpenGL FramebufferObject.
OpenGL rendering window.
The VertexArrayObject class uses, or emulates, vertex array objects.
abstract superclass for all actors, volumes and annotations
Definition vtkProp.h:57
vtkRenderPass()
Default constructor.
Context in which a vtkRenderPass will render.
The ShaderProgram uses one or more Shader objects.
bool SetShaderParameters(vtkShaderProgram *program, vtkAbstractMapper *mapper, vtkProp *prop, vtkOpenGLVertexArrayObject *VAO=nullptr) override
Update the uniforms of the shader program.
vtkShadowMapBakerPass()
Default constructor.
bool PreReplaceShaderValues(std::string &vertexShader, std::string &geometryShader, std::string &fragmentShader, vtkAbstractMapper *mapper, vtkProp *prop) override
Use vtkShaderProgram::Substitute to replace.
virtual void SetOpaqueSequence(vtkRenderPass *opaqueSequence)
Delegate for rendering the camera, lights, and opaque geometry.
void CheckSupport(vtkOpenGLRenderWindow *w)
Check if shadow mapping is supported by the current OpenGL context.
void PrintSelf(ostream &os, vtkIndent indent) override
Methods invoked by print to print information about the object including superclasses.
std::vector< vtkSmartPointer< vtkCamera > > * LightCameras
void BoxNearFar(double *bb, double *pt, double *dir, double &mNear, double &mFar)
Compute the min/max of the projection of a box in a given direction.
bool LightCreatesShadow(vtkLight *l)
INTERNAL USE ONLY.
~vtkShadowMapBakerPass() override
Destructor.
void PointNearFar(double *v, double *pt, double *dir, double &mNear, double &mFar, bool initialized)
Helper method to compute the mNearest point in a given direction.
void ReleaseGraphicsResources(vtkWindow *w) override
Release graphics resources and ask components to release their own resources.
bool GetHasShadows()
INTERNAL USE ONLY.
std::vector< vtkSmartPointer< vtkTextureObject > > * GetShadowMaps()
INTERNAL USE ONLY Internally used by vtkShadowMapBakerPass and vtkShadowMapPass.
void BuildCameraLight(vtkLight *light, double *boundingBox, vtkCamera *lcamera)
Build a camera from spot light parameters.
static vtkShadowMapBakerPass * New()
std::vector< vtkSmartPointer< vtkCamera > > * GetLightCameras()
INTERNAL USE ONLY.
void Render(const vtkRenderState *s) override
Perform rendering according to a render state s.
vtkOpenGLFramebufferObject * FrameBufferObject
Graphics resources.
bool GetNeedUpdate()
INTERNAL USE ONLY.
std::vector< vtkSmartPointer< vtkTextureObject > > * ShadowMaps
virtual void SetCompositeZPass(vtkRenderPass *compositeZPass)
Delegate for compositing of the shadow maps across processors.
abstracts an OpenGL texture object.
record modification and/or execution time
window superclass for vtkRenderWindow
Definition vtkWindow.h:39