VTK
vtkDepthPeelingPass.h
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1 /*=========================================================================
2 
3  Program: Visualization Toolkit
4  Module: vtkDepthPeelingPass.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 vtkDepthPeelingPass_h
45 #define vtkDepthPeelingPass_h
46 
47 #include "vtkRenderingOpenGL2Module.h" // For export macro
48 #include "vtkOpenGLRenderPass.h"
49 #include <vector> // STL Header
50 
51 class vtkTextureObject;
53 class vtkOpenGLHelper;
54 
55 class VTKRENDERINGOPENGL2_EXPORT vtkDepthPeelingPass
56  : public vtkOpenGLRenderPass
57 {
58 public:
61  void PrintSelf(ostream& os, vtkIndent indent);
62 
67  virtual void Render(const vtkRenderState *s);
68 
75 
77 
83  vtkGetObjectMacro(TranslucentPass,vtkRenderPass);
84  virtual void SetTranslucentPass(vtkRenderPass *translucentPass);
86 
88 
97  vtkSetClampMacro(OcclusionRatio,double,0.0,0.5);
98  vtkGetMacro(OcclusionRatio,double);
100 
102 
107  vtkSetMacro(MaximumNumberOfPeels,int);
108  vtkGetMacro(MaximumNumberOfPeels,int);
110 
119  // vtkOpenGLRenderPass virtuals:
120  virtual bool ReplaceShaderValues(std::string &vertexShader,
121  std::string &geometryShader,
122  std::string &fragmentShader,
123  vtkAbstractMapper *mapper,
124  vtkProp *prop);
125  virtual bool SetShaderParameters(vtkShaderProgram *program,
126  vtkAbstractMapper *mapper, vtkProp *prop);
127 
128  protected:
133 
138 
139  vtkRenderPass *TranslucentPass;
140  vtkTimeStamp CheckTime;
141  bool IsSupported;
142 
144 
147  int ViewportX;
148  int ViewportY;
149  int ViewportWidth;
150  int ViewportHeight;
152 
162  double OcclusionRatio;
163 
169  int MaximumNumberOfPeels;
170 
171  // Is rendering at translucent geometry stage using depth peeling and
172  // rendering a layer other than the first one? (Boolean value)
173  // If so, the uniform variables UseTexture and Texture can be set.
174  // (Used by vtkOpenGLProperty or vtkOpenGLTexture)
175  int DepthPeelingHigherLayer;
176 
179 
185  std::vector<float> *DepthZData;
186 
189 
190  private:
191  vtkDepthPeelingPass(const vtkDepthPeelingPass&) VTK_DELETE_FUNCTION;
192  void operator=(const vtkDepthPeelingPass&) VTK_DELETE_FUNCTION;
193 };
194 
195 #endif
abstract class specifies interface to map data
Implement an Order Independent Transparency render pass.
virtual void SetTranslucentPass(vtkRenderPass *translucentPass)
vtkDepthPeelingPass()
Default constructor.
void BlendFinalPeel(vtkOpenGLRenderWindow *renWin)
std::vector< float > * DepthZData
static vtkDepthPeelingPass * New()
void PrintSelf(ostream &os, vtkIndent indent)
Methods invoked by print to print information about the object including superclasses.
vtkTextureObject * OpaqueZTexture
vtkOpenGLHelper * IntermediateBlendProgram
vtkTextureObject * CurrentRGBATexture
void ReleaseGraphicsResources(vtkWindow *w)
Release graphics resources and ask components to release their own resources.
vtkTextureObject * TranslucentRGBATexture
vtkTextureObject * OpaqueRGBATexture
virtual bool ReplaceShaderValues(std::string &vertexShader, std::string &geometryShader, std::string &fragmentShader, vtkAbstractMapper *mapper, vtkProp *prop)
Is rendering at translucent geometry stage using depth peeling and rendering a layer other than the f...
virtual ~vtkDepthPeelingPass()
Destructor.
virtual void Render(const vtkRenderState *s)
Perform rendering according to a render state s.
vtkTextureObject * TranslucentZTexture
void BlendIntermediatePeels(vtkOpenGLRenderWindow *renWin, bool)
virtual bool SetShaderParameters(vtkShaderProgram *program, vtkAbstractMapper *mapper, vtkProp *prop)
Update the uniforms of the shader program.
vtkOpenGLHelper * FinalBlendProgram
a simple class to control print indentation
Definition: vtkIndent.h:40
Abstract render pass with shader modifications.
OpenGL rendering window.
abstract superclass for all actors, volumes and annotations
Definition: vtkProp.h:48
Perform part of the rendering of a vtkRenderer.
Definition: vtkRenderPass.h:59
Context in which a vtkRenderPass will render.
The ShaderProgram uses one or more Shader objects.
abstracts an OpenGL texture object.
record modification and/or execution time
Definition: vtkTimeStamp.h:36
window superclass for vtkRenderWindow
Definition: vtkWindow.h:35
@ string
Definition: vtkX3D.h:490
vtkSetMacro(IgnoreDriverBugs, bool)
Updates the extensions string.