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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 =========================================================================*/
44 #ifndef vtkShadowMapBakerPass_h
45 #define vtkShadowMapBakerPass_h
46 
47 #include "vtkRenderingOpenGL2Module.h" // For export macro
48 #include "vtkSmartPointer.h" // for ivars
49 #include <vector> // STL Header
50 #include "vtkOpenGLRenderPass.h"
51 
54 class vtkCamera;
55 class vtkLight;
57 class vtkTextureObject;
58 
59 class VTKRENDERINGOPENGL2_EXPORT vtkShadowMapBakerPass : public vtkOpenGLRenderPass
60 {
61 public:
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.
162  void SetUpToDate();
163 
164  protected:
169 
174 
175  // vtkOpenGLRenderPass virtuals:
177  std::string &geometryShader,
178  std::string &fragmentShader,
179  vtkAbstractMapper *mapper,
180  vtkProp *prop) override;
182  vtkAbstractMapper *mapper, vtkProp *prop,
183  vtkOpenGLVertexArrayObject* VAO = nullptr) override;
184 
192  void PointNearFar(double *v,
193  double *pt,
194  double *dir,
195  double &mNear,
196  double &mFar,
197  bool initialized);
198 
205  void BoxNearFar(double *bb,
206  double *pt,
207  double *dir,
208  double &mNear,
209  double &mFar);
210 
217  double *boundingBox,
218  vtkCamera *lcamera);
219 
225 
227 
229 
230  unsigned int Resolution;
231 
233 
238 
239  std::vector<vtkSmartPointer<vtkTextureObject> > *ShadowMaps;
240  std::vector<vtkSmartPointer<vtkCamera> > *LightCameras;
241 
242 
246 
247 
248 private:
250  void operator=(const vtkShadowMapBakerPass&) = delete;
251 };
252 
253 #endif
vtkShadowMapBakerPass::ShadowMaps
std::vector< vtkSmartPointer< vtkTextureObject > > * ShadowMaps
Definition: vtkShadowMapBakerPass.h:239
vtkShadowMapBakerPass::SetCompositeZPass
virtual void SetCompositeZPass(vtkRenderPass *compositeZPass)
vtkLight
a virtual light for 3D rendering
Definition: vtkLight.h:63
vtkShadowMapBakerPass::GetShadowMaps
std::vector< vtkSmartPointer< vtkTextureObject > > * GetShadowMaps()
INTERNAL USE ONLY Internally used by vtkShadowMapBakerPass and vtkShadowMapPass.
vtkShadowMapBakerPass::GetNeedUpdate
bool GetNeedUpdate()
INTERNAL USE ONLY.
vtkShadowMapBakerPass::vtkShadowMapBakerPass
vtkShadowMapBakerPass()
Default constructor.
vtkTimeStamp
record modification and/or execution time
Definition: vtkTimeStamp.h:36
vtkShadowMapBakerPass::CheckSupport
void CheckSupport(vtkOpenGLRenderWindow *w)
Check if shadow mapping is supported by the current OpenGL context.
vtkShadowMapBakerPass::SetUpToDate
void SetUpToDate()
vtkOpenGLFramebufferObject
Internal class which encapsulates OpenGL FramebufferObject.
Definition: vtkOpenGLFramebufferObject.h:183
vtkX3D::dir
@ dir
Definition: vtkX3D.h:324
vtkShadowMapBakerPass::FrameBufferObject
vtkOpenGLFramebufferObject * FrameBufferObject
Graphics resources.
Definition: vtkShadowMapBakerPass.h:237
vtkShadowMapBakerPass::Resolution
unsigned int Resolution
Definition: vtkShadowMapBakerPass.h:230
vtkShadowMapBakerPass::Render
void Render(const vtkRenderState *s) override
Perform rendering according to a render state s.
vtkShadowMapBakerPass::LightCameras
std::vector< vtkSmartPointer< vtkCamera > > * LightCameras
Definition: vtkShadowMapBakerPass.h:240
vtkShadowMapBakerPass::BuildCameraLight
void BuildCameraLight(vtkLight *light, double *boundingBox, vtkCamera *lcamera)
Build a camera from spot light parameters.
vtkShadowMapBakerPass::NeedUpdate
bool NeedUpdate
Definition: vtkShadowMapBakerPass.h:244
vtkWindow
window superclass for vtkRenderWindow
Definition: vtkWindow.h:38
vtkShadowMapBakerPass::PreReplaceShaderValues
bool PreReplaceShaderValues(std::string &vertexShader, std::string &geometryShader, std::string &fragmentShader, vtkAbstractMapper *mapper, vtkProp *prop) override
Use vtkShaderProgram::Substitute to replace //VTK::XXX:YYY declarations in the shader sources.
vtkShadowMapBakerPass::GetLightCameras
std::vector< vtkSmartPointer< vtkCamera > > * GetLightCameras()
INTERNAL USE ONLY.
vtkShadowMapBakerPass::~vtkShadowMapBakerPass
~vtkShadowMapBakerPass() override
Destructor.
vtkShadowMapBakerPass::CompositeZPass
vtkRenderPass * CompositeZPass
Definition: vtkShadowMapBakerPass.h:228
vtkShadowMapBakerPass::LastRenderTime
vtkTimeStamp LastRenderTime
Definition: vtkShadowMapBakerPass.h:243
vtkShadowMapBakerPass::PointNearFar
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.
vtkShadowMapBakerPass::ReleaseGraphicsResources
void ReleaseGraphicsResources(vtkWindow *w) override
Release graphics resources and ask components to release their own resources.
vtkShaderProgram
The ShaderProgram uses one or more Shader objects.
Definition: vtkShaderProgram.h:48
vtkInformationIntegerKey
Key for integer values in vtkInformation.
Definition: vtkInformationIntegerKey.h:35
vtkShadowMapBakerPass::PrintSelf
void PrintSelf(ostream &os, vtkIndent indent) override
Methods invoked by print to print information about the object including superclasses.
vtkShadowMapBakerPass::GetHasShadows
bool GetHasShadows()
INTERNAL USE ONLY.
vtkIndent
a simple class to control print indentation
Definition: vtkIndent.h:40
vtkTextureObject
abstracts an OpenGL texture object.
Definition: vtkTextureObject.h:45
vtkShadowMapBakerPass::SetShaderParameters
bool SetShaderParameters(vtkShaderProgram *program, vtkAbstractMapper *mapper, vtkProp *prop, vtkOpenGLVertexArrayObject *VAO=nullptr) override
Update the uniforms of the shader program.
vtkCamera
a virtual camera for 3D rendering
Definition: vtkCamera.h:51
vtkShadowMapBakerPass::CurrentLightIndex
size_t CurrentLightIndex
Definition: vtkShadowMapBakerPass.h:245
vtkSmartPointer.h
vtkShadowMapBakerPass::HasShadows
bool HasShadows
Definition: vtkShadowMapBakerPass.h:232
vtkProp
abstract superclass for all actors, volumes and annotations
Definition: vtkProp.h:53
vtkX3D::string
@ string
Definition: vtkX3D.h:490
vtkShadowMapBakerPass::New
static vtkShadowMapBakerPass * New()
vtkShadowMapBakerPass::OpaqueSequence
vtkRenderPass * OpaqueSequence
Definition: vtkShadowMapBakerPass.h:226
vtkOpenGLRenderPass
Abstract render pass with shader modifications.
Definition: vtkOpenGLRenderPass.h:39
vtkOpenGLRenderPass.h
vtkOpenGLRenderWindow
OpenGL rendering window.
Definition: vtkOpenGLRenderWindow.h:54
vtkRenderState
Context in which a vtkRenderPass will render.
Definition: vtkRenderState.h:41
vtkShadowMapBakerPass::LightCreatesShadow
bool LightCreatesShadow(vtkLight *l)
INTERNAL USE ONLY.
vtkShadowMapBakerPass::SetOpaqueSequence
virtual void SetOpaqueSequence(vtkRenderPass *opaqueSequence)
vtkOpenGLVertexArrayObject
The VertexArrayObject class uses, or emulates, vertex array objects.
Definition: vtkOpenGLVertexArrayObject.h:37
vtkShadowMapBakerPass
Implement a builder of shadow map pass.
Definition: vtkShadowMapBakerPass.h:60
vtkShadowMapBakerPass::BoxNearFar
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.
vtkAbstractMapper
abstract class specifies interface to map data
Definition: vtkAbstractMapper.h:56
vtkRenderPass
Perform part of the rendering of a vtkRenderer.
Definition: vtkRenderPass.h:59