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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 =========================================================================*/
41 #ifndef vtkShadowMapBakerPass_h
42 #define vtkShadowMapBakerPass_h
43 
44 #include "vtkRenderingOpenGL2Module.h" // For export macro
45 #include "vtkSmartPointer.h" // for ivars
46 #include <vector> // STL Header
47 #include "vtkRenderPass.h"
48 
51 class vtkCamera;
52 class vtkLight;
54 class vtkTextureObject;
55 
56 class VTKRENDERINGOPENGL2_EXPORT vtkShadowMapBakerPass : public vtkRenderPass
57 {
58 public:
61  void PrintSelf(ostream& os, vtkIndent indent);
62 
67  virtual void Render(const vtkRenderState *s);
68 
75 
77 
83  vtkGetObjectMacro(OpaqueSequence,vtkRenderPass);
84  virtual void SetOpaqueSequence(vtkRenderPass *opaqueSequence);
86 
88 
94  vtkGetObjectMacro(CompositeZPass,vtkRenderPass);
95  virtual void SetCompositeZPass(vtkRenderPass *compositeZPass);
97 
99 
104  vtkSetMacro(Resolution,unsigned int);
105  vtkGetMacro(Resolution,unsigned int);
107 
116 
127 
134  std::vector<vtkSmartPointer<vtkTextureObject> > *GetShadowMaps();
135 
142  std::vector<vtkSmartPointer<vtkCamera> > *GetLightCameras();
143 
153 
154  // // Description:
155  // INTERNAL USE ONLY.
156  // Internally used by vtkShadowMapBakerPass and vtkShadowMapPass.
157  //
158  // Set NeedUpate to false. Called by vtkShadowMapPass.
159  void SetUpToDate();
160 
161  protected:
166 
171 
179  void PointNearFar(double *v,
180  double *pt,
181  double *dir,
182  double &mNear,
183  double &mFar,
184  bool initialized);
185 
192  void BoxNearFar(double *bb,
193  double *pt,
194  double *dir,
195  double &mNear,
196  double &mFar);
197 
204  double *boundingBox,
205  vtkCamera *lcamera);
206 
212 
214 
215  vtkRenderPass *CompositeZPass;
216 
217  unsigned int Resolution;
218 
219  bool HasShadows;
220 
224  vtkFrameBufferObject *FrameBufferObject;
225 
226  std::vector<vtkSmartPointer<vtkTextureObject> > *ShadowMaps;
227  std::vector<vtkSmartPointer<vtkCamera> > *LightCameras;
228 
229 
230  vtkTimeStamp LastRenderTime;
231  bool NeedUpdate;
232 
233 private:
234  vtkShadowMapBakerPass(const vtkShadowMapBakerPass&) VTK_DELETE_FUNCTION;
235  void operator=(const vtkShadowMapBakerPass&) VTK_DELETE_FUNCTION;
236 };
237 
238 #endif
vtkShadowMapBakerPass::ShadowMaps
std::vector< vtkSmartPointer< vtkTextureObject > > * ShadowMaps
Definition: vtkShadowMapBakerPass.h:226
vtkShadowMapBakerPass::SetCompositeZPass
virtual void SetCompositeZPass(vtkRenderPass *compositeZPass)
vtkFrameBufferObject
internal class which encapsulates OpenGL frame buffer object.
Definition: vtkFrameBufferObject.h:47
vtkLight
a virtual light for 3D rendering
Definition: vtkLight.h:62
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()
vtkShadowMapBakerPass::Render
virtual void Render(const vtkRenderState *s)
Perform rendering according to a render state s.
vtkX3D::dir
@ dir
Definition: vtkX3D.h:324
vtkRenderPass.h
vtkShadowMapBakerPass::LightCameras
std::vector< vtkSmartPointer< vtkCamera > > * LightCameras
Definition: vtkShadowMapBakerPass.h:227
vtkShadowMapBakerPass::BuildCameraLight
void BuildCameraLight(vtkLight *light, double *boundingBox, vtkCamera *lcamera)
Build a camera from spot light parameters.
vtkShadowMapBakerPass::~vtkShadowMapBakerPass
virtual ~vtkShadowMapBakerPass()
Destructor.
vtkWindow
window superclass for vtkRenderWindow
Definition: vtkWindow.h:35
vtkShadowMapBakerPass::GetLightCameras
std::vector< vtkSmartPointer< vtkCamera > > * GetLightCameras()
INTERNAL USE ONLY.
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.
vtkInformationIntegerKey
Key for integer values in vtkInformation.
Definition: vtkInformationIntegerKey.h:35
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:44
vtkCamera
a virtual camera for 3D rendering
Definition: vtkCamera.h:51
vtkSmartPointer.h
vtkShadowMapBakerPass::PrintSelf
void PrintSelf(ostream &os, vtkIndent indent)
Methods invoked by print to print information about the object including superclasses.
vtkSetMacro
vtkSetMacro(IgnoreDriverBugs, bool)
Updates the extensions string.
vtkShadowMapBakerPass::New
static vtkShadowMapBakerPass * New()
vtkShadowMapBakerPass::ReleaseGraphicsResources
void ReleaseGraphicsResources(vtkWindow *w)
Release graphics resources and ask components to release their own resources.
vtkShadowMapBakerPass::OpaqueSequence
vtkRenderPass * OpaqueSequence
Definition: vtkShadowMapBakerPass.h:213
vtkOpenGLRenderWindow
OpenGL rendering window.
Definition: vtkOpenGLRenderWindow.h:42
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)
vtkShadowMapBakerPass
Implement a builder of shadow map pass.
Definition: vtkShadowMapBakerPass.h:61
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.
vtkRenderPass
Perform part of the rendering of a vtkRenderer.
Definition: vtkRenderPass.h:59