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=========================================================================*/
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.
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:51
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