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vtkShadowMapPass.h
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1 /*=========================================================================
2 
3  Program: Visualization Toolkit
4  Module: vtkShadowMapPass.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 vtkShadowMapPass_h
42 #define vtkShadowMapPass_h
43 
44 #include "vtkRenderingOpenGL2Module.h" // For export macro
45 #include "vtkRenderPass.h"
46 #include <vector> // STL Header
47 #include <string> // For member variables.
48 
51 class vtkCamera;
52 class vtkLight;
54 class vtkShadowMapPassTextures; // internal
55 class vtkShadowMapPassLightCameras; // internal
58 class vtkShaderProgram;
59 
60 class VTKRENDERINGOPENGL2_EXPORT vtkShadowMapPass : public vtkRenderPass
61 {
62 public:
63  static vtkShadowMapPass *New();
65  void PrintSelf(ostream& os, vtkIndent indent);
66 
71  virtual void Render(const vtkRenderState *s);
72 
79 
81 
87  vtkGetObjectMacro(ShadowMapBakerPass,vtkShadowMapBakerPass);
88  virtual void SetShadowMapBakerPass(
89  vtkShadowMapBakerPass *shadowMapBakerPass);
91 
93 
97  vtkGetObjectMacro(OpaqueSequence,vtkRenderPass);
98  virtual void SetOpaqueSequence(vtkRenderPass *opaqueSequence);
100 
105  std::vector<double> ShadowMapTransforms() {
106  return this->ShadowTransforms; }
107 
113  std::vector<int> GetShadowMapTextureUnits() {
114  return this->ShadowTextureUnits; }
115 
119  static vtkInformationObjectBaseKey *ShadowMapPass();
120 
126  return this->FragmentDeclaration; }
128  return this->FragmentImplementation; }
129 
134  void SetUniforms(vtkShaderProgram *program);
135 
136  protected:
141 
145  virtual ~vtkShadowMapPass();
146 
151  void CheckSupport(vtkOpenGLRenderWindow *w);
152 
153  vtkShadowMapBakerPass *ShadowMapBakerPass;
154  vtkRenderPass *CompositeRGBAPass;
155 
157 
161  vtkFrameBufferObject *FrameBufferObject;
162 
163  vtkShadowMapPassTextures *ShadowMaps;
164  vtkShadowMapPassLightCameras *LightCameras;
165 
166  vtkTimeStamp LastRenderTime;
167 
168  // to store the shader code and settings
169  void BuildShaderCode();
172  std::vector<int> ShadowTextureUnits;
173  std::vector<double> ShadowTransforms;
174  std::vector<float> ShadowAttenuation;
175 
176 private:
177  vtkShadowMapPass(const vtkShadowMapPass&) VTK_DELETE_FUNCTION;
178  void operator=(const vtkShadowMapPass&) VTK_DELETE_FUNCTION;
179 };
180 
181 #endif
vtkShadowMapPass::OpaqueSequence
vtkRenderPass * OpaqueSequence
Definition: vtkShadowMapPass.h:156
vtkFrameBufferObject
internal class which encapsulates OpenGL frame buffer object. Not to be used directly.
Definition: vtkFrameBufferObject.h:46
vtkLight
a virtual light for 3D rendering
Definition: vtkLight.h:61
vtkRenderPass::ReleaseGraphicsResources
virtual void ReleaseGraphicsResources(vtkWindow *w)
Release graphics resources and ask components to release their own resources.
vtkObject::New
static vtkObject * New()
Create an object with Debug turned off, modified time initialized to zero, and reference counting on.
vtkTimeStamp
record modification and/or execution time
Definition: vtkTimeStamp.h:35
vtkShadowMapPass::ShadowTextureUnits
std::vector< int > ShadowTextureUnits
Definition: vtkShadowMapPass.h:172
vtkRenderPass::Render
virtual void Render(const vtkRenderState *s)=0
Perform rendering according to a render state s.
vtkShadowMapPass::FragmentImplementation
std::string FragmentImplementation
Definition: vtkShadowMapPass.h:171
vtkRenderPass::PrintSelf
void PrintSelf(ostream &os, vtkIndent indent)
Methods invoked by print to print information about the object including superclasses.
vtkRenderPass.h
vtkShadowMapPass::ShadowMapTransforms
std::vector< double > ShadowMapTransforms()
get the matricies for all the shadow maps.
Definition: vtkShadowMapPass.h:105
vtkShadowMapPass::GetFragmentImplementation
std::string GetFragmentImplementation()
Definition: vtkShadowMapPass.h:127
vtkShadowMapPass
Implement a shadow mapping render pass.
Definition: vtkShadowMapPass.h:64
vtkWindow
window superclass for vtkRenderWindow
Definition: vtkWindow.h:34
vtkShadowMapPass::FragmentDeclaration
std::string FragmentDeclaration
Definition: vtkShadowMapPass.h:170
vtkShaderProgram
The ShaderProgram uses one or more Shader objects.
Definition: vtkShaderProgram.h:44
vtkInformationObjectBaseKey
Key for vtkObjectBase values.
Definition: vtkInformationObjectBaseKey.h:36
vtkInformationIntegerKey
Key for integer values in vtkInformation.
Definition: vtkInformationIntegerKey.h:34
vtkIndent
a simple class to control print indentation
Definition: vtkIndent.h:39
vtkCamera
a virtual camera for 3D rendering
Definition: vtkCamera.h:50
vtkShadowMapPass::GetFragmentDeclaration
std::string GetFragmentDeclaration()
Get the shader code to compute light factors based on a mappers vertexVC variable.
Definition: vtkShadowMapPass.h:125
vtkX3D::string
Definition: vtkX3D.h:490
vtkOpenGLRenderWindow
OpenGL rendering window.
Definition: vtkOpenGLRenderWindow.h:41
vtkRenderState
Context in which a vtkRenderPass will render.
Definition: vtkRenderState.h:40
vtkShadowMapPass::ShadowAttenuation
std::vector< float > ShadowAttenuation
Definition: vtkShadowMapPass.h:174
vtkShadowMapPass::GetShadowMapTextureUnits
std::vector< int > GetShadowMapTextureUnits()
get the texture units for the shadow maps for each light.
Definition: vtkShadowMapPass.h:113
vtkShadowMapPass::ShadowTransforms
std::vector< double > ShadowTransforms
Definition: vtkShadowMapPass.h:173
vtkShadowMapBakerPass
Implement a builder of shadow map pass.
Definition: vtkShadowMapBakerPass.h:60
vtkRenderPass
Perform part of the rendering of a vtkRenderer.
Definition: vtkRenderPass.h:58