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import Qt3D.Core 2.0
import Qt3D.Render 2.0

Effect {
    id: root

    // It's expected that users of this will specify the tessellation control and evaluation
    // shaders and if necessary suitable replacements for the other stages
    property alias vertexShaderCode: program.vertexShaderCode
    property alias tessellationControlShaderCode: program.tessellationControlShaderCode
    property alias tessellationEvaluationShaderCode: program.tessellationEvaluationShaderCode
    property alias geometryShaderCode: program.geometryShaderCode
    property alias fragmentShaderCode: program.fragmentShaderCode
    property alias shaderProgram: program

    parameters: [
        Parameter { name: "ka";   value: Qt.vector3d( 0.1, 0.1, 0.1 ) },
        Parameter { name: "kd";   value: Qt.vector3d( 0.7, 0.7, 0.7 ) },
        Parameter { name: "ks";  value: Qt.vector3d( 0.95, 0.95, 0.95 ) },
        Parameter { name: "shininess"; value: 150.0 }
    ]

    techniques: [
        Technique {
            graphicsApiFilter {
                api: GraphicsApiFilter.OpenGL
                profile: GraphicsApiFilter.CoreProfile
                majorVersion: 4
                minorVersion: 0
            }

            filterKeys: [ FilterKey { name: "renderingStyle"; value: "forward" } ]

            parameters: [
                Parameter { name: "light.position"; value: Qt.vector4d(0.0, 0.0, 0.0, 1.0) },
                Parameter { name: "light.intensity"; value: Qt.vector3d(1.0, 1.0, 1.0) },
                Parameter { name: "line.width"; value: 0.8 },
                Parameter { name: "line.color"; value: Qt.vector4d(1.0, 1.0, 1.0, 1.0) }
            ]

            renderPasses: [
                RenderPass {
                    shaderProgram: ShaderProgram {
                        id: program
                        vertexShaderCode:   loadSource("qrc:/shaders/passthru.vert")
                        geometryShaderCode: loadSource("qrc:/shaders/robustwireframe.geom")
                        fragmentShaderCode: loadSource("qrc:/shaders/phongwireframe.frag")
                    }
                }
            ]
        }
    ]
}
