Qt 5.6 | Qt 3D | Qt 3D: Playground QML Example | MyForwardRenderer.qml Example File

Qt 5.6.3 Reference Documentation

# MyForwardRenderer.qml Example File

playground-qml/MyForwardRenderer.qml

      /****************************************************************************
      **
      ** Copyright (C) 2014 Klaralvdalens Datakonsult AB (KDAB).
      ** Contact: http://www.qt-project.org/legal
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      import Qt3D.Core 2.0
      import Qt3D.Render 2.0

      TechniqueFilter {
          id: root

          objectName : "techniqueFilter"

          // Expose the viewport rect and camera. This allows users of this
          // forward rendering framegraph to decide which camera in the
          // scene renders to a given viewport region.
          //
          // Using this as a building block for a larger framegraph would
          // allow a scene to be rendered multiple times to different
          // viewports using different cameras for e.g.
          property alias mainCamera: mainCameraSelector.camera
          property alias detailCamera: detailCameraSelector.camera
          property alias layerFilters: layerFilter.layers
          property alias clearColor: viewport.clearColor

          requires : [
              Annotation { name: "RenderingStyle"; value: "forward";},
              Annotation { name: "Enabled"; value: true;}
          ]

          ClearBuffer {
              buffers: ClearBuffer.ColorDepthBuffer

              // Main Viewport
              Viewport {
                  id: viewport
                  rect: Qt.rect(0.0, 0, 1.0, 1.0)

                  CameraSelector {
                      id: mainCameraSelector

                      LayerFilter {
                          id: layerFilter
                          RenderPassFilter { includes: [
                                  Annotation {name : "Name"; value : "Texture"}
                              ] }
                      }
                  }
              }
          }

          Viewport {
              id: detailViewport
              rect: Qt.rect(0.75, 0.0, 0.25, 0.25)

              CameraSelector {
                  id: detailCameraSelector
                  RenderPassFilter {
                      includes: [ Annotation { name: "Name"; value: "ColorMaterial"; } ]
                  }
              }
          }
      }