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/*=========================================================================
Program: Visualization Toolkit
Module: vtkCameraPass.h
Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
All rights reserved.
See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notice for more information.
=========================================================================*/
/**
* @class vtkCameraPass
* @brief Implement the camera render pass.
*
* Render the camera.
*
* It setups the projection and modelview matrices and can clear the background
* It calls its delegate once.
* After its delegate returns, it restore the modelview matrix stack.
*
* Its delegate is usually set to a vtkSequencePass with a vtkLigthsPass and
* a list of passes for the geometry.
*
* @sa
* vtkRenderPass
*/
#ifndef vtkCameraPass_h
#define vtkCameraPass_h
#include "vtkRenderingOpenGL2Module.h" // For export macro
#include "vtkRenderPass.h"
class VTKRENDERINGOPENGL2_EXPORT vtkCameraPass : public vtkRenderPass
{
public:
static vtkCameraPass *New();
vtkTypeMacro(vtkCameraPass,vtkRenderPass);
void PrintSelf(ostream& os, vtkIndent indent);
/**
* Perform rendering according to a render state \p s.
* \pre s_exists: s!=0
*/
virtual void Render(const vtkRenderState *s);
/**
* Release graphics resources and ask components to release their own
* resources.
* \pre w_exists: w!=0
*/
void ReleaseGraphicsResources(vtkWindow *w);
//@{
/**
* Delegate for rendering the geometry.
* If it is NULL, nothing will be rendered and a warning will be emitted.
* It is usually set to a vtkSequencePass with a vtkLigthsPass and
* a list of passes for the geometry.
* Initial value is a NULL pointer.
*/
vtkGetObjectMacro(DelegatePass,vtkRenderPass);
virtual void SetDelegatePass(vtkRenderPass *delegatePass);
//@}
//@{
/**
* Used to override the aspect ratio used when computing the projection
* matrix. This is useful when rendering for tile-displays for example.
*/
vtkSetMacro(AspectRatioOverride, double);
vtkGetMacro(AspectRatioOverride, double);
protected:
//@}
/**
* Default constructor. DelegatePass is set to NULL.
*/
vtkCameraPass();
//@{
/**
* Destructor.
*/
virtual ~vtkCameraPass();
virtual void GetTiledSizeAndOrigin(
const vtkRenderState* render_state,
int* width, int* height, int *originX,
int* originY);
//@}
vtkRenderPass *DelegatePass;
double AspectRatioOverride;
private:
vtkCameraPass(const vtkCameraPass&) VTK_DELETE_FUNCTION;
void operator=(const vtkCameraPass&) VTK_DELETE_FUNCTION;
};
#endif
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