main.qml Example File | Qt3D Module 5.5

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- Qt3D: Tessellation Modes QML Example
- main.qml Example File
- Qt 5.5.1 Reference Documentation

# main.qml Example File

tessellation-modes/main.qml

    /****************************************************************************
    **
    ** Copyright (C) 2014 Klaralvdalens Datakonsult AB (KDAB).
    ** Contact: http://www.qt-project.org/legal
    **
    ** This file is part of the Qt3D module of the Qt Toolkit.
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    ** $QT_BEGIN_LICENSE:LGPL3$
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    ** ensure the GNU Lesser General Public License version 3 requirements
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    import Qt3D 2.0
    import Qt3D.Renderer 2.0
    import QtQuick 2.1 as QQ2

    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
    }