VTK  9.2.6
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 "vtkOpenGLRenderPass.h"
48#include "vtkRenderingOpenGL2Module.h" // For export macro
49#include "vtkSmartPointer.h" // for ivars
50#include <vector> // STL Header
51
54class vtkCamera;
55class vtkLight;
58
59class VTKRENDERINGOPENGL2_EXPORT vtkShadowMapBakerPass : public vtkOpenGLRenderPass
60{
61public:
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.
163
164protected:
169
174
175 // vtkOpenGLRenderPass virtuals:
176 bool PreReplaceShaderValues(std::string& vertexShader, std::string& geometryShader,
177 std::string& fragmentShader, vtkAbstractMapper* mapper, vtkProp* prop) override;
179 vtkOpenGLVertexArrayObject* VAO = nullptr) override;
180
189 double* v, double* pt, double* dir, double& mNear, double& mFar, bool initialized);
190
197 void BoxNearFar(double* bb, double* pt, double* dir, double& mNear, double& mFar);
198
204 void BuildCameraLight(vtkLight* light, double* boundingBox, vtkCamera* lcamera);
205
211
213
215
216 unsigned int Resolution;
217
219
224
225 std::vector<vtkSmartPointer<vtkTextureObject>>* ShadowMaps;
226 std::vector<vtkSmartPointer<vtkCamera>>* LightCameras;
227
231
232private:
234 void operator=(const vtkShadowMapBakerPass&) = delete;
235};
236
237#endif
abstract class specifies interface to map data
a virtual camera for 3D rendering
Definition vtkCamera.h:52
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:60
Internal class which encapsulates OpenGL FramebufferObject.
Abstract render pass with shader modifications.
OpenGL rendering window.
The VertexArrayObject class uses, or emulates, vertex array objects.
abstract superclass for all actors, volumes and annotations
Definition vtkProp.h:57
Perform part of the rendering of a vtkRenderer.
Context in which a vtkRenderPass will render.
The ShaderProgram uses one or more Shader objects.
Implement a builder of shadow map pass.
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