MyForwardRenderer.qml Example File

playground-qml/MyForwardRenderer.qml

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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"; } ]
              }
          }
      }
  }