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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
Rectangle {
width: 400
height: 400
color: "black"
View3D {
anchors.fill: parent
environment: SceneEnvironment {
clearColor: "black"
backgroundMode: SceneEnvironment.Color
}
camera: PerspectiveCamera {
z: 400
}
DirectionalLight {
}
// Sharp edges behind the glass, for the color fringes to show on
Repeater3D {
model: 9
Model {
id: bar
required property int index
source: "#Rectangle"
z: -260
x: -400 + index * 100
scale: Qt.vector3d(0.3, 8, 1)
materials: PrincipledMaterial {
baseColor: bar.index % 2 === 0 ? "white" : "black"
lighting: PrincipledMaterial.NoLighting
}
}
}
// Transmission without dispersion, for reference
Model {
source: "#Sphere"
x: -120
y: 90
scale: Qt.vector3d(0.8, 0.8, 0.8)
materials: CustomMaterial {
fragmentShader: "custom_dispersion.frag"
property real uDispersion: 0.0
}
}
Model {
source: "#Sphere"
x: 120
y: 90
scale: Qt.vector3d(0.8, 0.8, 0.8)
// Far beyond any real material, so that the channels separate clearly
materials: CustomMaterial {
fragmentShader: "custom_dispersion.frag"
property real uDispersion: 20.0
}
}
// Dispersion without transmission has no effect, but must still compile
Model {
source: "#Sphere"
y: -100
scale: Qt.vector3d(0.8, 0.8, 0.8)
materials: CustomMaterial {
fragmentShader: "custom_dispersion_notransmission.frag"
}
}
}
}