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++ import QtQuick
++ import QtQuick3D
++ import QtQuick3D.Helpers
++
++ Item {
++ id: window
++ width: 1200
++ height: 800
++
++ property int numColumns: 2
++ property int numRows: 2
++
++ function createView(col, row, cullingEnabled, cameraYawOffset) {
++ return Qt.createQmlObject(`
++ import QtQuick
++ import QtQuick3D
++ import QtQuick3D.Helpers
++
++ Item {
++ width: parent.width / ${numColumns}
++ height: parent.height / ${numRows}
++ x: width * ${col}
++ y: height * ${row}
++
++ View3D {
++ anchors.fill: parent
++
++ environment: SceneEnvironment {
++ clearColor: "black"
++ }
++
++ // Camera is fixed distance, but rotated per view
++ camera: PerspectiveCamera {
++ id: cam
++ position: Qt.vector3d(0, 220, 450)
++
++ // base angle + per-view offset
++ eulerRotation: Qt.vector3d(-28, 20 + ${cameraYawOffset}, 0)
++
++ frustumCullingEnabled: ${cullingEnabled}
++ }
++
++ // Low sun angle, long shadows
++ DirectionalLight {
++ eulerRotation: Qt.vector3d(-15, -70, 0)
++ brightness: 2.5
++ castsShadow: true
++ shadowMapQuality: Light.ShadowMapQualityVeryHigh
++ }
++
++ // Floor
++ Model {
++ source: "#Cube"
++ position: Qt.vector3d(0, -5, 0)
++ scale: Qt.vector3d(18, 0.05, 18)
++ receivesShadows: true
++ materials: PrincipledMaterial {
++ baseColor: "#bdbdbd"
++ }
++ }
++
++ // Single cube (fixed world position)
++ Model {
++ source: "#Cube"
++ position: Qt.vector3d(0, 150, 0)
++ castsShadows: true
++ materials: PrincipledMaterial {
++ baseColor: "red"
++ }
++ }
++ }
++
++ WasdController {
++ controlledObject: cam
++ }
++
++ Rectangle {
++ color: "white"
++ radius: 4
++ anchors.top: parent.top
++ anchors.left: parent.left
++ anchors.margins: 5
++
++ Text {
++ anchors.fill: parent
++ anchors.margins: 4
++ color: "black"
++ font.pixelSize: 14
++ text:
++ "Culling: " + (${cullingEnabled} ? "ON" : "OFF") + "\\n" +
++ "Camera yaw: " + (20 + ${cameraYawOffset})
++ }
++ }
++ }
++ `, window)
++ }
++
++ Component.onCompleted: {
++ // Row 0
++ createView(0, 0, true, -40) // cube out of view culled
++ createView(1, 0, false, -40) // cube out of view unculled
++
++ // Row 1
++ createView(0, 1, true, -75) // cube in view culled
++ createView(1, 1, false, -75) // cube in view unculled
++ }
++ }