Qt 5.6 | Qt 3D | Qt 3D: Deferred Renderer C++ Example | deferredrenderer.cpp Example File

Qt 5.6.3 Reference Documentation

# deferredrenderer.cpp Example File

deferred-renderer-cpp/deferredrenderer.cpp

      /****************************************************************************
      **
      ** Copyright (C) 2014 Klaralvdalens Datakonsult AB (KDAB).
      ** Contact: http://www.qt-project.org/legal
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      ** Alternatively, this file may be used under the terms of the GNU
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      #include "deferredrenderer.h"

      DeferredRenderer::DeferredRenderer(Qt3DCore::QNode *parent)
          : Qt3DRender::QViewport(parent)
          , m_sceneFilter(new Qt3DRender::QLayerFilter(this))
          , m_screenQuadFilter(new Qt3DRender::QLayerFilter(this))
          , m_clearScreenQuad(new Qt3DRender::QClearBuffer(m_screenQuadFilter))
          , m_gBufferTargetSelector(new Qt3DRender::QRenderTargetSelector(m_sceneFilter))
          , m_clearGBuffer(new Qt3DRender::QClearBuffer(m_gBufferTargetSelector))
          , m_geometryPassFilter(new Qt3DRender::QRenderPassFilter(m_clearGBuffer))
          , m_finalPassFilter(new Qt3DRender::QRenderPassFilter(m_clearScreenQuad))
          , m_sceneCameraSelector(new Qt3DRender::QCameraSelector(m_geometryPassFilter))
      {
          m_clearGBuffer->setBuffers(Qt3DRender::QClearBuffer::ColorDepthBuffer);
          m_clearScreenQuad->setBuffers(Qt3DRender::QClearBuffer::ColorDepthBuffer);
      }

      void DeferredRenderer::setSceneCamera(Qt3DCore::QEntity *camera)
      {
          m_sceneCameraSelector->setCamera(camera);
      }

      void DeferredRenderer::setGBuffer(Qt3DRender::QRenderTarget *gBuffer)
      {
          m_gBufferTargetSelector->setTarget(gBuffer);
      }

      void DeferredRenderer::setGeometryPassCriteria(QList<Qt3DRender::QAnnotation *> criteria)
      {
          Q_FOREACH (Qt3DRender::QAnnotation *c, criteria)
              m_geometryPassFilter->addInclude(c);
      }

      void DeferredRenderer::setFinalPassCriteria(QList<Qt3DRender::QAnnotation *> criteria)
      {
          Q_FOREACH (Qt3DRender::QAnnotation *c, criteria)
              c->setParent(m_finalPassFilter);
      }

      void DeferredRenderer::setGBufferLayers(const QStringList &layerNames)
      {
          m_sceneFilter->setLayers(layerNames);
      }

      void DeferredRenderer::setScreenQuadLayers(const QStringList &layerNames)
      {
          m_screenQuadFilter->setLayers(layerNames);
      }