Qt Quick 3D - Principled Material Example

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 import QtQuick 2.15
 import QtQuick.Controls 2.14
 import QtQuick.Layouts 1.14

 Rectangle {
     property real metalness: metalness.sliderValue
     property real roughness: roughness.sliderValue
     property real specular: specular.sliderValue
     property real specularTint: specularTint.sliderValue
     property real ior: ior.sliderValue
     property real opacityValue: opacityValue.sliderValue

     color: "#6b7080"
     width: parent.width
     height: 75

     Component {
         id: propertySlider
         RowLayout {
             Label {
                 id: propText
                 text: name
                 color: "#222840"
                 font.pointSize: 12
                 Layout.minimumWidth: 150
                 Layout.maximumWidth: 150
             }
             Slider {
                 id: slider
                 from: fromValue
                 to: toValue
                 value: sliderValue
                 stepSize: 0.01
                 onValueChanged: sliderValue = value
                 Layout.minimumWidth: 200
                 Layout.maximumWidth: 200
                 background: Rectangle {
                     x: slider.leftPadding
                     y: slider.topPadding + slider.availableHeight / 2 - height / 2
                     implicitWidth: 200
                     implicitHeight: 4
                     width: slider.availableWidth
                     height: implicitHeight
                     radius: 1
                     color: "#222840"

                     Rectangle {
                         width: slider.visualPosition * parent.width
                         height: parent.height
                         color: "#848895"
                         radius: 1
                     }
                 }
                 handle: Rectangle {
                     x: slider.leftPadding + slider.visualPosition * (slider.availableWidth - width)
                     y: slider.topPadding + slider.availableHeight / 2 - height / 2
                     implicitWidth: 20
                     implicitHeight: 20
                     radius: 5
                     color: slider.pressed ? "#222840" : "#6b7080"
                     border.color: "#848895"
                 }
             }
             Label {
                 id: valueText
                 text: slider.value.toFixed(2)
                 color: "#222840"
                 font.pointSize: 12
                 font.bold: true
                 Layout.minimumWidth: 40
                 Layout.maximumWidth: 40
             }
         }
     }

     ColumnLayout {
         anchors.horizontalCenter: parent.horizontalCenter
         RowLayout {
             spacing: 20
             Loader {
                 id: metalness
                 property real sliderValue: 1.0
                 property string name: "Metalness"
                 property real fromValue: 0.0
                 property real toValue: 1.0
                 sourceComponent:  propertySlider
             }
             Loader {
                 id: roughness
                 property real sliderValue: 0.2
                 property string name: "Roughness"
                 property real fromValue: 0.0
                 property real toValue: 1.0
                 sourceComponent:  propertySlider
             }
             Loader {
                 id: ior
                 property real sliderValue: 1.8
                 property string name: "Index of Refraction"
                 property real fromValue: 1.0
                 property real toValue: 3.0
                 sourceComponent: propertySlider
             }
         }
         RowLayout {
             spacing: 20
             Loader {
                 id: specular
                 property real sliderValue: 0.0
                 property string name: "Specular Power"
                 property real fromValue: 0.0
                 property real toValue: 1.0
                 sourceComponent:  propertySlider
             }
             Loader {
                 id: specularTint
                 property real sliderValue: 0.0
                 property string name: "Specular Tint"
                 property real fromValue: 0.0
                 property real toValue: 1.0
                 sourceComponent: propertySlider
             }
             Loader {
                 id: opacityValue
                 property real sliderValue: 1.0
                 property string name: "Opacity"
                 property real fromValue: 0.0
                 property real toValue: 1.0
                 sourceComponent: propertySlider
             }
         }
     }
 }