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++ // Copyright (C) 2026 The Qt Company Ltd.
++ // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
++
++ import QtQuick
++ import QtQuick3D
++
++ Rectangle {
++ width: 400
++ height: 400
++ color: "lightgray"
++
++ View3D {
++ anchors.fill: parent
++
++ environment: SceneEnvironment {
++ lightProbe: Texture {
++ source: "../shared/maps/OpenfootageNET_lowerAustria01-1024.hdr"
++ }
++ }
++
++ camera: PerspectiveCamera {
++ z: 400
++ }
++
++ DirectionalLight {
++ eulerRotation.x: -20
++ }
++
++ PointLight {
++ z: 200
++ y: 100
++ }
++
++ // Row 0: increasing strength on a metal, from the isotropic reference
++ // through to a fully stretched highlight
++ Model {
++ source: "#Sphere"
++ y: 110
++ x: -110
++ scale: Qt.vector3d(0.9, 0.9, 0.9)
++ materials: PrincipledMaterial {
++ baseColor: "#ffcccccc"
++ metalness: 1.0
++ roughness: 0.35
++ }
++ }
++ Model {
++ source: "#Sphere"
++ y: 110
++ scale: Qt.vector3d(0.9, 0.9, 0.9)
++ materials: PrincipledMaterial {
++ baseColor: "#ffcccccc"
++ metalness: 1.0
++ roughness: 0.35
++ anisotropyStrength: 0.5
++ }
++ }
++ Model {
++ source: "#Sphere"
++ y: 110
++ x: 110
++ scale: Qt.vector3d(0.9, 0.9, 0.9)
++ materials: PrincipledMaterial {
++ baseColor: "#ffcccccc"
++ metalness: 1.0
++ roughness: 0.35
++ anisotropyStrength: 1.0
++ }
++ }
++
++ // Row 1: the rotation, which has to turn the highlight within the
++ // tangent plane
++ Model {
++ source: "#Sphere"
++ x: -110
++ scale: Qt.vector3d(0.9, 0.9, 0.9)
++ materials: PrincipledMaterial {
++ baseColor: "#ffcccccc"
++ metalness: 1.0
++ roughness: 0.35
++ anisotropyStrength: 0.9
++ anisotropyRotation: 45
++ }
++ }
++ Model {
++ source: "#Sphere"
++ scale: Qt.vector3d(0.9, 0.9, 0.9)
++ materials: PrincipledMaterial {
++ baseColor: "#ffcccccc"
++ metalness: 1.0
++ roughness: 0.35
++ anisotropyStrength: 0.9
++ anisotropyRotation: 90
++ }
++ }
++ // A rough dielectric rather than a metal, and combined with sheen so
++ // that the layer composite is exercised together with anisotropy
++ Model {
++ source: "#Sphere"
++ x: 110
++ scale: Qt.vector3d(0.9, 0.9, 0.9)
++ materials: PrincipledMaterial {
++ baseColor: "#ff202030"
++ roughness: 0.5
++ anisotropyStrength: 0.9
++ sheenColor: "#ff80a0ff"
++ sheenRoughness: 0.4
++ }
++ }
++
++ // Row 2: the map, which supplies direction in RG and strength in B,
++ // and the interaction with normal mapping and with clearcoat
++ Model {
++ source: "#Sphere"
++ y: -110
++ x: -110
++ scale: Qt.vector3d(0.9, 0.9, 0.9)
++ materials: PrincipledMaterial {
++ baseColor: "#ffcccccc"
++ metalness: 1.0
++ roughness: 0.35
++ anisotropyStrength: 1.0
++ anisotropyMap: Texture {
++ source: "../shared/maps/rgba.png"
++ generateMipmaps: true
++ mipFilter: Texture.Linear
++ }
++ }
++ }
++ Model {
++ source: "#Sphere"
++ y: -110
++ scale: Qt.vector3d(0.9, 0.9, 0.9)
++ materials: PrincipledMaterial {
++ baseColor: "#ffcccccc"
++ metalness: 1.0
++ roughness: 0.35
++ anisotropyStrength: 0.9
++ normalMap: Texture {
++ source: "../shared/maps/RibsNormal.png"
++ generateMipmaps: true
++ mipFilter: Texture.Linear
++ }
++ }
++ }
++ Model {
++ source: "#Sphere"
++ y: -110
++ x: 110
++ scale: Qt.vector3d(0.9, 0.9, 0.9)
++ materials: PrincipledMaterial {
++ baseColor: "#ffcccccc"
++ metalness: 1.0
++ roughness: 0.35
++ anisotropyStrength: 0.9
++ anisotropyRotation: 30
++ clearcoatAmount: 1.0
++ clearcoatRoughnessAmount: 0.1
++ }
++ }
++ }
++ }