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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 =========================================================================*/
39 #ifndef vtkDepthPeelingPass_h
40 #define vtkDepthPeelingPass_h
41 
42 #include "vtkRenderingOpenGLModule.h" // For export macro
43 #include "vtkRenderPass.h"
44 
46 class vtkDepthPeelingPassLayerList; // Pimpl
47 class vtkShaderProgram2;
48 class vtkShader2;
49 
50 class VTKRENDERINGOPENGL_EXPORT vtkDepthPeelingPass : public vtkRenderPass
51 {
52 public:
53  static vtkDepthPeelingPass *New();
55  void PrintSelf(ostream& os, vtkIndent indent) VTK_OVERRIDE;
56 
61  void Render(const vtkRenderState *s) VTK_OVERRIDE;
62 
68  void ReleaseGraphicsResources(vtkWindow *w) VTK_OVERRIDE;
69 
71 
77  vtkGetObjectMacro(TranslucentPass,vtkRenderPass);
78  virtual void SetTranslucentPass(vtkRenderPass *translucentPass);
80 
82 
91  vtkSetClampMacro(OcclusionRatio,double,0.0,0.5);
92  vtkGetMacro(OcclusionRatio,double);
94 
96 
101  vtkSetMacro(MaximumNumberOfPeels,int);
102  vtkGetMacro(MaximumNumberOfPeels,int);
104 
106 
110  vtkGetMacro(LastRenderingUsedDepthPeeling,bool);
112 
121  protected:
126 
130  ~vtkDepthPeelingPass() VTK_OVERRIDE;
131 
136  void CheckSupport(vtkOpenGLRenderWindow *w);
137 
141  void CheckCompilation(unsigned int fragmentShader);
142 
150  int RenderPeel(const vtkRenderState *s,
151  int layer);
152 
153  vtkRenderPass *TranslucentPass;
154  vtkTimeStamp CheckTime;
155  bool IsChecked;
156  bool IsSupported;
157 
159 
162  int ViewportX;
163  int ViewportY;
164  int ViewportWidth;
165  int ViewportHeight;
167 
172  unsigned int DepthFormat;
173 
183  double OcclusionRatio;
184 
190  int MaximumNumberOfPeels;
191 
192  bool LastRenderingUsedDepthPeeling;
193 
197  vtkDepthPeelingPassLayerList *LayerList;
198 
199  unsigned int OpaqueLayerZ;
200  unsigned int TransparentLayerZ;
201 // unsigned int ProgramShader;
202 
203  // Is rendering at translucent geometry stage using depth peeling and
204  // rendering a layer other than the first one? (Boolean value)
205  // If so, the uniform variables UseTexture and Texture can be set.
206  // (Used by vtkOpenGLProperty or vtkOpenGLTexture)
207  int DepthPeelingHigherLayer;
208 
210  vtkShader2 *Shader;
211 
212  int ShadowTexUnit; // texture unit allocated for the shadow texture
213  int OpaqueShadowTexUnit; // texture unit allocated for the opaque shadow tex.
214 
215  private:
216  vtkDepthPeelingPass(const vtkDepthPeelingPass&) VTK_DELETE_FUNCTION;
217  void operator=(const vtkDepthPeelingPass&) VTK_DELETE_FUNCTION;
218 };
219 
220 #endif
OpenGL rendering window.
GLSL Shader.
Definition: vtkShader2.h:59
Implement an Order Independent Transparency render pass.
record modification and/or execution time
Definition: vtkTimeStamp.h:32
window superclass for vtkRenderWindow
Definition: vtkWindow.h:34
Context in which a vtkRenderPass will render.
GLSL Program.
a simple class to control print indentation
Definition: vtkIndent.h:33
vtkSetMacro(IgnoreDriverBugs, bool)
When set known driver bugs are ignored during driver feature detection.
virtual void Render(const vtkRenderState *s)=0
Perform rendering according to a render state s.
virtual void ReleaseGraphicsResources(vtkWindow *w)
Release graphics resources and ask components to release their own resources.
static vtkObject * New()
Create an object with Debug turned off, modified time initialized to zero, and reference counting on...
Perform part of the rendering of a vtkRenderer.
Definition: vtkRenderPass.h:55
void PrintSelf(ostream &os, vtkIndent indent) override
Methods invoked by print to print information about the object including superclasses.