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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 "vtkRenderPass.h"
51 
54 class vtkCamera;
55 class vtkLight;
57 class vtkTextureObject;
58 
59 class VTKRENDERINGOPENGL2_EXPORT vtkShadowMapBakerPass : public vtkRenderPass
60 {
61 public:
64  void PrintSelf(ostream& os, vtkIndent indent);
65 
70  virtual void Render(const vtkRenderState *s);
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 
182  void PointNearFar(double *v,
183  double *pt,
184  double *dir,
185  double &mNear,
186  double &mFar,
187  bool initialized);
188 
195  void BoxNearFar(double *bb,
196  double *pt,
197  double *dir,
198  double &mNear,
199  double &mFar);
200 
207  double *boundingBox,
208  vtkCamera *lcamera);
209 
215 
217 
218  vtkRenderPass *CompositeZPass;
219 
220  unsigned int Resolution;
221 
222  bool HasShadows;
223 
227  vtkFrameBufferObject *FrameBufferObject;
228 
229  std::vector<vtkSmartPointer<vtkTextureObject> > *ShadowMaps;
230  std::vector<vtkSmartPointer<vtkCamera> > *LightCameras;
231 
232 
233  vtkTimeStamp LastRenderTime;
234  bool NeedUpdate;
235 
236 private:
237  vtkShadowMapBakerPass(const vtkShadowMapBakerPass&) VTK_DELETE_FUNCTION;
238  void operator=(const vtkShadowMapBakerPass&) VTK_DELETE_FUNCTION;
239 };
240 
241 #endif
a virtual camera for 3D rendering
Definition: vtkCamera.h:51
internal class which encapsulates OpenGL frame buffer object.
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:62
OpenGL rendering window.
Perform part of the rendering of a vtkRenderer.
Definition: vtkRenderPass.h:59
Context in which a vtkRenderPass will render.
Implement a builder of shadow map pass.
std::vector< vtkSmartPointer< vtkTextureObject > > * GetShadowMaps()
INTERNAL USE ONLY Internally used by vtkShadowMapBakerPass and vtkShadowMapPass.
vtkShadowMapBakerPass()
Default constructor.
void ReleaseGraphicsResources(vtkWindow *w)
Release graphics resources and ask components to release their own resources.
virtual void SetOpaqueSequence(vtkRenderPass *opaqueSequence)
std::vector< vtkSmartPointer< vtkCamera > > * GetLightCameras()
INTERNAL USE ONLY.
void CheckSupport(vtkOpenGLRenderWindow *w)
Check if shadow mapping is supported by the current OpenGL context.
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.
virtual void Render(const vtkRenderState *s)
Perform rendering according to a render state s.
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.
bool GetHasShadows()
INTERNAL USE ONLY.
void BuildCameraLight(vtkLight *light, double *boundingBox, vtkCamera *lcamera)
Build a camera from spot light parameters.
static vtkShadowMapBakerPass * New()
void PrintSelf(ostream &os, vtkIndent indent)
Methods invoked by print to print information about the object including superclasses.
virtual ~vtkShadowMapBakerPass()
Destructor.
bool GetNeedUpdate()
INTERNAL USE ONLY.
std::vector< vtkSmartPointer< vtkTextureObject > > * ShadowMaps
virtual void SetCompositeZPass(vtkRenderPass *compositeZPass)
abstracts an OpenGL texture object.
record modification and/or execution time
Definition: vtkTimeStamp.h:36
window superclass for vtkRenderWindow
Definition: vtkWindow.h:35
@ dir
Definition: vtkX3D.h:324
vtkSetMacro(IgnoreDriverBugs, bool)
Updates the extensions string.