VTK
dox/Rendering/VolumeOpenGL/vtkOpenGLProjectedTetrahedraMapper.h
Go to the documentation of this file.
00001 /*=========================================================================
00002 
00003   Program:   Visualization Toolkit
00004   Module:    vtkOpenGLProjectedTetrahedraMapper.h
00005 
00006   Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
00007   All rights reserved.
00008   See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
00009 
00010      This software is distributed WITHOUT ANY WARRANTY; without even
00011      the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
00012      PURPOSE.  See the above copyright notice for more information.
00013 
00014 =========================================================================*/
00015 
00016 /*
00017  * Copyright 2003 Sandia Corporation.
00018  * Under the terms of Contract DE-AC04-94AL85000, there is a non-exclusive
00019  * license for use of this work by or on behalf of the
00020  * U.S. Government. Redistribution and use in source and binary forms, with
00021  * or without modification, are permitted provided that this Notice and any
00022  * statement of authorship are reproduced on all copies.
00023  */
00024 
00035 #ifndef __vtkOpenGLProjectedTetrahedraMapper_h
00036 #define __vtkOpenGLProjectedTetrahedraMapper_h
00037 
00038 #include "vtkRenderingVolumeOpenGLModule.h" // For export macro
00039 #include "vtkProjectedTetrahedraMapper.h"
00040 
00041 class vtkVisibilitySort;
00042 class vtkUnsignedCharArray;
00043 class vtkFloatArray;
00044 
00045 class VTKRENDERINGVOLUMEOPENGL_EXPORT vtkOpenGLProjectedTetrahedraMapper
00046   : public vtkProjectedTetrahedraMapper
00047 {
00048 public:
00049   vtkTypeMacro(vtkOpenGLProjectedTetrahedraMapper,
00050                        vtkProjectedTetrahedraMapper);
00051   static vtkOpenGLProjectedTetrahedraMapper *New();
00052   virtual void PrintSelf(ostream &os, vtkIndent indent);
00053 
00054   virtual void ReleaseGraphicsResources(vtkWindow *window);
00055 
00056   virtual void Render(vtkRenderer *renderer, vtkVolume *volume);
00057 
00059 
00061   vtkSetMacro(UseFloatingPointFrameBuffer,bool);
00062   vtkGetMacro(UseFloatingPointFrameBuffer,bool);
00063   vtkBooleanMacro(UseFloatingPointFrameBuffer,bool);
00065 
00066 protected:
00067   vtkOpenGLProjectedTetrahedraMapper();
00068   ~vtkOpenGLProjectedTetrahedraMapper();
00069 
00070   void Initialize(vtkRenderer *ren);
00071   bool Initialized;
00072   int  CurrentFBOWidth, CurrentFBOHeight;
00073   bool CheckFBOResources(vtkRenderer *ren);
00074   bool CanDoFloatingPointFrameBuffer;
00075   bool FloatingPointFrameBufferResourcesAllocated;
00076   bool UseFloatingPointFrameBuffer;
00077 
00078   vtkUnsignedCharArray *Colors;
00079   int UsingCellColors;
00080 
00081   vtkFloatArray *TransformedPoints;
00082 
00083   float MaxCellSize;
00084   vtkTimeStamp InputAnalyzedTime;
00085   vtkTimeStamp OpacityTextureTime;
00086   vtkTimeStamp ColorsMappedTime;
00087 
00088   int GaveError;
00089 
00090   vtkVolumeProperty *LastProperty;
00091 
00092   float *SqrtTable;
00093   float SqrtTableBias;
00094 
00095   virtual void ProjectTetrahedra(vtkRenderer *renderer, vtkVolume *volume);
00096 
00097   float GetCorrectedDepth(float x, float y, float z1, float z2,
00098                           const float inverse_projection_mat[16],
00099                           int use_linear_depth_correction,
00100                           float linear_depth_correction);
00101 
00102 private:
00103   vtkOpenGLProjectedTetrahedraMapper(const vtkOpenGLProjectedTetrahedraMapper &);  // Not Implemented.
00104   void operator=(const vtkOpenGLProjectedTetrahedraMapper &);  // Not Implemented.
00105 
00106   class vtkInternals;
00107 
00108   vtkInternals *Internals;
00109 };
00110 
00111 #endif