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++ // Copyright (C) 2026 The Qt Company Ltd.
++ // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
++
++ // PipelineStateOverride depthTestEnabled test.
++ // Two overlapping spheres: blue (closer, z=100) and red (farther, z=-100).
++ // Opaque objects are sorted front-to-back, so blue draws first, red draws second.
++ // With depthTestEnabled: false (no GPU depth test), the last-drawn object wins
++ // → red (drawn second) is visible at the center.
++ // With depthTestEnabled: true (default), the depth buffer keeps the closer object
++ // → blue (z=100, closer to camera at z=300) is visible at the center.
++ // The C++ test changes depthTestEnabled at runtime to verify the transition.
++
++ import QtQuick
++ import QtQuick3D
++ import QtQuick3D.Helpers
++
++ Item {
++ id: root
++ width: 400
++ height: 400
++
++ View3D {
++ anchors.fill: parent
++ renderOverrides: View3D.DisableInternalPasses
++
++ environment: SceneEnvironment {
++ backgroundMode: SceneEnvironment.Color
++ clearColor: "black"
++ }
++
++ PerspectiveCamera {
++ position: Qt.vector3d(0, 0, 300)
++ }
++
++ RenderPassTexture {
++ id: colorTex
++ format: RenderPassTexture.RGBA8
++ }
++
++ RenderPass {
++ id: mainPass
++ materialMode: RenderPass.OriginalMaterial
++ clearColor: "black"
++
++ commands: [
++ ColorAttachment { target: colorTex },
++ DepthStencilAttachment {},
++ PipelineStateOverride {
++ objectName: "pso"
++ depthTestEnabled: false
++ }
++ ]
++ }
++
++ SimpleQuadRenderer {
++ texture: Texture {
++ textureProvider: RenderOutputProvider {
++ textureSource: RenderOutputProvider.UserPassTexture
++ renderPass: mainPass
++ attachmentSelector: RenderOutputProvider.Attachment0
++ }
++ }
++ }
++
++ // Blue sphere closer to camera (z=100, distance to camera=200)
++ // Front-to-back sort: drawn FIRST
++ Model {
++ source: "#Sphere"
++ position: Qt.vector3d(0, 0, 100)
++ scale: Qt.vector3d(3, 3, 3)
++ materials: PrincipledMaterial {
++ baseColor: "blue"
++ lighting: PrincipledMaterial.NoLighting
++ }
++ }
++
++ // Red sphere farther from camera (z=-100, distance to camera=400)
++ // Front-to-back sort: drawn SECOND
++ Model {
++ source: "#Sphere"
++ position: Qt.vector3d(0, 0, -100)
++ scale: Qt.vector3d(3, 3, 3)
++ materials: PrincipledMaterial {
++ baseColor: "red"
++ lighting: PrincipledMaterial.NoLighting
++ }
++ }
++ }
++ }