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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
++ import QtQuick3D.Helpers
++
++ Rectangle {
++ width: 400
++ height: 400
++ color: "lightgray"
++
++ View3D {
++ anchors.fill: parent
++
++ camera: PerspectiveCamera {
++ z: 100
++ }
++
++ DirectionalLight {
++ eulerRotation.y: 180
++ ambientColor: Qt.rgba(1.0, 1.0, 1.0, 1.0)
++ }
++
++ Model {
++ source: "#Rectangle"
++ materials: [
++ PrincipledMaterial {
++ lighting: DefaultMaterial.NoLighting
++ baseColorMap: tex0
++ }
++ ]
++ }
++ }
++
++ Texture {
++ id: tex2
++ textureProvider: QuadTextureProvider {
++ id: quad2
++ width: 32 * factor
++ height: 32 * factor
++ property real factor: 0
++ fragmentShaderCode: `
++ void MAIN() {
++ FRAGCOLOR = vec4(INPUT_UV*0.25, 0.25, 1);
++ }`
++ }
++ magFilter: Texture.Nearest
++ tilingModeHorizontal: Texture.ClampToEdge
++ tilingModeVertical: Texture.ClampToEdge
++ }
++ Texture {
++ id: tex1
++ textureProvider: QuadTextureProvider {
++ id: quad1
++ width: 32 * factor
++ height: 32 * factor
++ property real factor: 0
++ fragmentShaderCode: `
++ void MAIN() {
++ vec4 src = texture(src, INPUT_UV);
++ FRAGCOLOR = vec4(src.r, src.g + 0.65, src.b, 1);
++ }`
++ property Texture src: tex2
++ }
++ magFilter: Texture.Nearest
++ tilingModeHorizontal: Texture.ClampToEdge
++ tilingModeVertical: Texture.ClampToEdge
++ }
++ Texture {
++ id: tex0
++ textureProvider: QuadTextureProvider {
++ width: 64
++ height: 64
++ fragmentShaderCode: `
++ void MAIN() {
++ vec4 src = texture(src, INPUT_UV);
++ FRAGCOLOR = vec4(src.r + 0.65, src.g, src.b, 1);
++ }`
++ property Texture src: tex1
++ }
++ magFilter: Texture.Nearest
++ tilingModeHorizontal: Texture.ClampToEdge
++ tilingModeVertical: Texture.ClampToEdge
++ }
++
++ NumberAnimation {
++ target: quad2
++ property: "factor"
++ duration: 200
++ from: 0
++ to: 1
++ running: true
++ }
++
++ NumberAnimation {
++ target: quad1
++ property: "factor"
++ duration: 200
++ from: 0
++ to: 1
++ running: true
++ }
++ }