VTK  9.2.6
vtkShadowMapBakerPass.h
Go to the documentation of this file.
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=========================================================================*/
40
41#ifndef vtkShadowMapBakerPass_h
42#define vtkShadowMapBakerPass_h
43
44#include "vtkOpenGLRenderPass.h"
45#include "vtkRenderingOpenGL2Module.h" // For export macro
46#include "vtkSmartPointer.h" // for ivars
47#include <vector> // STL Header
48
51class vtkCamera;
52class vtkLight;
55
56class VTKRENDERINGOPENGL2_EXPORT vtkShadowMapBakerPass : public vtkOpenGLRenderPass
57{
58public:
61 void PrintSelf(ostream& os, vtkIndent indent) override;
62
67 void Render(const vtkRenderState* s) override;
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.
160
161protected:
166
171
172 // vtkOpenGLRenderPass virtuals:
173 bool PreReplaceShaderValues(std::string& vertexShader, std::string& geometryShader,
174 std::string& fragmentShader, vtkAbstractMapper* mapper, vtkProp* prop) override;
176 vtkOpenGLVertexArrayObject* VAO = nullptr) override;
177
186 double* v, double* pt, double* dir, double& mNear, double& mFar, bool initialized);
187
194 void BoxNearFar(double* bb, double* pt, double* dir, double& mNear, double& mFar);
195
201 void BuildCameraLight(vtkLight* light, double* boundingBox, vtkCamera* lcamera);
202
208
210
212
213 unsigned int Resolution;
214
216
221
222 std::vector<vtkSmartPointer<vtkTextureObject>>* ShadowMaps;
223 std::vector<vtkSmartPointer<vtkCamera>>* LightCameras;
224
228
229private:
231 void operator=(const vtkShadowMapBakerPass&) = delete;
232};
233
234#endif
abstract class specifies interface to map data
a virtual camera for 3D rendering
Definition vtkCamera.h:46
a simple class to control print indentation
Definition vtkIndent.h:34
Key for integer values in vtkInformation.
a virtual light for 3D rendering
Definition vtkLight.h:57
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:51
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