qgsambientocclusionrenderview.h

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/***************************************************************************
  qgsambientocclusionrenderview.h
  --------------------------------------
  Date                 : June 2024
  Copyright            : (C) 2024 by Benoit De Mezzo and (C) 2020 by Belgacem Nedjima
  Email                : benoit dot de dot mezzo at oslandia dot com
 ***************************************************************************
 *                                                                         *
 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU General Public License as published by  *
 *   the Free Software Foundation; either version 2 of the License, or     *
 *   (at your option) any later version.                                   *
 *                                                                         *
 ***************************************************************************/
 
#ifndef QGSAMBIENTOCCLUSIONRENDERVIEW_H
#define QGSAMBIENTOCCLUSIONRENDERVIEW_H
 
#include "qgsabstractrenderview.h"
 
#define SIP_NO_FILE
 
namespace Qt3DCore
{
  class QEntity;
} //namespace Qt3DCore
 
namespace Qt3DRender
{
  class QCamera;
  class QCameraSelector;
  class QLayer;
  class QLayerFilter;
  class QRenderSettings;
  class QRenderTarget;
  class QRenderTargetSelector;
  class QSubtreeEnabler;
  class QTexture2D;
} //namespace Qt3DRender
 
class QgsAmbientOcclusionRenderEntity;
class QgsAmbientOcclusionBlurEntity;

class QgsAmbientOcclusionRenderView : public QgsAbstractRenderView
{
  public:
    QgsAmbientOcclusionRenderView( const QString &viewName, Qt3DRender::QCamera *mainCamera, QSize mSize, Qt3DRender::QTexture2D *forwardDepthTexture, Qt3DCore::QEntity *rootSceneEntity );

    void setIntensity( float intensity );

    void setRadius( float radius );

    void setThreshold( float threshold );

    Qt3DRender::QTexture2D *blurredFactorMapTexture() const;
 
    void updateWindowResize( int width, int height ) override;
    void setEnabled( bool enable ) override;
 
  private:
    Qt3DRender::QLayer *mAOPassLayer = nullptr;
    Qt3DRender::QTexture2D *mAOPassTexture = nullptr;
    Qt3DRender::QTexture2D *mBlurPassTexture = nullptr;
    Qt3DRender::QLayer *mBlurPassLayer = nullptr;
 
    QgsAmbientOcclusionRenderEntity *mAmbientOcclusionRenderEntity = nullptr;
    QgsAmbientOcclusionBlurEntity *mAmbientOcclusionBlurEntity = nullptr;
 
    void buildRenderPasses( QSize mSize, Qt3DRender::QTexture2D *forwardDepthTexture, Qt3DCore::QEntity *rootSceneEntity, Qt3DRender::QCamera *mainCamera );

    Qt3DRender::QRenderTarget *buildAOTexture( QSize mSize );

    Qt3DRender::QRenderTarget *buildBlurTexture( QSize mSize );
};
 
#endif // QGSAMBIENTOCCLUSIONRENDERVIEW_H