Qt 5.6 | Qt 3D | Qt 3D: Tessellation Modes QML Example | main.qml Example File

Qt 5.6.3 Reference Documentation

# main.qml Example File

tessellation-modes/main.qml

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      import QtQuick 2.1 as QQ2
      import Qt3D.Core 2.0
      import Qt3D.Render 2.0

      Entity {
          id: root
          objectName: "root"

          // Use the renderer configuration specified in ForwardRenderer.qml
          // and render from the mainCamera
          components: [
              FrameGraph {
                  activeFrameGraph: ForwardRenderer {
                      id: renderer
                      camera: mainCamera
                      clearColor: "black"
                  }
              }
          ]

          BasicCamera {
              id: mainCamera
              position: Qt.vector3d( 0.0, 0.0, 10.0 )
          }

          Configuration  {
              controlledCamera: mainCamera
          }

          TessellatedWireframeMaterial {
              id: quadMaterial
              ambient: Qt.rgba( 0.2, 0.0, 0.0, 1.0 )
              diffuse: Qt.rgba( 0.8, 0.0, 0.0, 1.0 )

              property real innerLevel : 1.0
              property real outerLevel : 1.0

              innerTessLevel : [innerLevel, innerLevel]
              outerTessLevel : [outerLevel, outerLevel, outerLevel, outerLevel]

              effect: TessellatedWireframeEffect {
                  tessellationControlShaderCode: shaderProgram.loadSource("qrc:/shaders/quads.tcs")
                  tessellationEvaluationShaderCode: shaderProgram.loadSource("qrc:/shaders/quads.tes")
              }

              QQ2.SequentialAnimation {
                  loops: QQ2.Animation.Infinite
                  running: true

                  QQ2.NumberAnimation {
                      target: quadMaterial;
                      properties: "innerLevel,outerLevel";
                      duration: 1000;
                      from: 1.0
                      to: 20.0
                  }

                  QQ2.NumberAnimation {
                      target: quadMaterial;
                      properties: "innerLevel,outerLevel";
                      duration: 1000;
                      from: 20.0
                      to: 1.0
                  }
              }
          }

          TessellatedQuad {
              id: quad
              material: quadMaterial
          }

          // TODO: Add examples for triangle and isoline tessellation modes
      }