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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
++
++ // lod_digits.mesh has an extruded digit per level: the original is a "0" and
++ // levels 1 to 9 are the digits "1" to "9". The leftmost model is not instanced
++ // with LOD disabled, so it always draws the original. The others are instanced
++ // with instancingLodFactor stepping from 0 to 1 in ninths, and are expected
++ // to read 0 to 9 in order.
++ Rectangle {
++ width: 800
++ height: 480
++ color: Qt.rgba(0, 0, 0, 1)
++
++ View3D {
++ anchors.fill: parent
++
++ environment: SceneEnvironment {
++ clearColor: Qt.rgba(0, 0, 0, 1)
++ backgroundMode: SceneEnvironment.Color
++ }
++
++ PerspectiveCamera {
++ position.z: 1000
++ }
++
++ InstanceList {
++ id: singleInstance
++ instances: [
++ InstanceListEntry {
++ position: Qt.vector3d(0, 0, 0)
++ }
++ ]
++ }
++
++ Model {
++ source: "../shared/models/lod_digits.mesh"
++ position: Qt.vector3d(-750, 0, 0)
++ scale: Qt.vector3d(0.8, 0.8, 0.8)
++ levelOfDetailBias: 0
++ materials: PrincipledMaterial { baseColor: "white"; lighting: PrincipledMaterial.NoLighting }
++ }
++
++ Repeater3D {
++ model: 10
++ Model {
++ required property int index
++ source: "../shared/models/lod_digits.mesh"
++ position: Qt.vector3d(-600 + index * 150, 0, 0)
++ scale: Qt.vector3d(0.8, 0.8, 0.8)
++ instancing: singleInstance
++ instancingLodFactor: index / 9
++ materials: PrincipledMaterial { baseColor: Qt.hsla(index / 10, 1, 0.6, 1); lighting: PrincipledMaterial.NoLighting }
++ }
++ }
++ }
++ }