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++ // Copyright (C) 2026 The Qt Company Ltd.
++ // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
++
++ // Side-by-side comparison of ProceduralSkyMaterial (left) and
++ // ProceduralSkyTextureData (right) for equal parameter sets.
++ // Top row: all defaults. Bottom row: every property tweaked.
++ // PSTD uses VeryHigh quality to minimise resolution differences.
++
++ import QtQuick
++ import QtQuick3D
++ import QtQuick3D.Helpers
++
++ Rectangle {
++ width: 800
++ height: 600
++ color: "black"
++
++ component SkyView: View3D {
++ required property SceneEnvironment env
++ environment: env
++ camera: PerspectiveCamera {
++ position: Qt.vector3d(0, 150, 600)
++ eulerRotation: Qt.vector3d(-10, 0, 0)
++ }
++ Model {
++ source: "#Sphere"
++ y: 125
++ scale: Qt.vector3d(2.5, 2.5, 2.5)
++ materials: PrincipledMaterial {
++ baseColor: "lightblue"
++ roughness: 0.05
++ metalness: 1.0
++ }
++ }
++ }
++
++ // ── Top row: defaults ──────────────────────────────────────────────────
++
++ SkyView {
++ x: 0; y: 0; width: 400; height: 300
++ env: SceneEnvironment {
++ backgroundMode: SceneEnvironment.SkyMaterial
++ skyMaterial: ProceduralSkyMaterial {}
++ }
++ }
++
++ SkyView {
++ x: 400; y: 0; width: 400; height: 300
++ env: SceneEnvironment {
++ backgroundMode: SceneEnvironment.SkyBox
++ lightProbe: Texture {
++ textureData: ProceduralSkyTextureData {}
++ }
++ }
++ }
++
++ // ── Bottom row: all properties tweaked ────────────────────────────────
++
++ SkyView {
++ x: 0; y: 300; width: 400; height: 300
++ env: SceneEnvironment {
++ backgroundMode: SceneEnvironment.SkyMaterial
++ skyMaterial: ProceduralSkyMaterial {
++ skyTopColor: "#1A2E5E"
++ skyHorizonColor: "#D4784A"
++ skyCurve: 0.04
++ skyEnergy: 0.8
++ groundBottomColor: "#0A0C10"
++ groundHorizonColor: "#3A2818"
++ groundCurve: 0.04
++ groundEnergy: 0.4
++ sunColor: "#FF8C30"
++ sunLatitude: 8
++ sunLongitude: 160
++ sunAngleMin: 2.0
++ sunAngleMax: 60.0
++ sunCurve: 0.1
++ sunEnergy: 2.5
++ }
++ }
++ }
++
++ SkyView {
++ x: 400; y: 300; width: 400; height: 300
++ env: SceneEnvironment {
++ backgroundMode: SceneEnvironment.SkyBox
++ lightProbe: Texture {
++ textureData: ProceduralSkyTextureData {
++ skyTopColor: "#1A2E5E"
++ skyHorizonColor: "#D4784A"
++ skyCurve: 0.04
++ skyEnergy: 0.8
++ groundBottomColor: "#0A0C10"
++ groundHorizonColor: "#3A2818"
++ groundCurve: 0.04
++ groundEnergy: 0.4
++ sunColor: "#FF8C30"
++ sunLatitude: 8
++ sunLongitude: 160
++ sunAngleMin: 2.0
++ sunAngleMax: 60.0
++ sunCurve: 0.1
++ sunEnergy: 2.5
++ }
++ }
++ }
++ }
++ }