Initial release of Lumen Wallpaper
This commit is contained in:
emil28092005
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import QtQuick
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import QtQuick.Controls as Controls
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import QtQuick.Dialogs
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import QtQuick.Layouts
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import org.kde.kirigami as Kirigami
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Item {
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id: configRoot
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property alias cfg_shaderPath: shaderPath.text
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property alias cfg_targetFps: fpsSlider.value
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property alias cfg_speed: speedSlider.value
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property alias cfg_running: runningCheck.checked
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property alias cfg_mouseEnabled: mouseCheck.checked
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property alias cfg_watchSource: watchCheck.checked
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implicitWidth: 560
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implicitHeight: form.implicitHeight + Kirigami.Units.gridUnit * 2
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FileDialog {
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id: shaderDialog
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title: "Choose a fragment shader"
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nameFilters: ["Fragment shaders (*.frag *.glsl)", "All files (*)"]
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onAccepted: shaderPath.text = selectedFile.toString()
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}
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Kirigami.FormLayout {
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id: form
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anchors {
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left: parent.left
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right: parent.right
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top: parent.top
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margins: Kirigami.Units.gridUnit
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}
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RowLayout {
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Kirigami.FormData.label: "Fragment shader:"
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Layout.fillWidth: true
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Controls.TextField {
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id: shaderPath
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Layout.fillWidth: true
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placeholderText: "Built-in Lumen shader"
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}
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Controls.Button {
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text: "Browse…"
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onClicked: shaderDialog.open()
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}
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Controls.Button {
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text: "Reset"
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onClicked: shaderPath.text = ""
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}
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}
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Controls.Label {
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text: "Shadertoy-style GLSL with mainImage(). Files reload automatically when enabled below."
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wrapMode: Text.Wrap
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Layout.fillWidth: true
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opacity: 0.7
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}
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RowLayout {
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Kirigami.FormData.label: "Frame rate:"
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Controls.Slider {
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id: fpsSlider
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from: 5
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to: 120
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stepSize: 1
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value: 30
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Layout.fillWidth: true
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}
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Controls.Label {
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text: Math.round(fpsSlider.value) + " FPS"
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Layout.minimumWidth: 64
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}
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}
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RowLayout {
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Kirigami.FormData.label: "Animation speed:"
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Controls.Slider {
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id: speedSlider
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from: 0.1
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to: 3.0
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stepSize: 0.05
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value: 1.0
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Layout.fillWidth: true
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}
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Controls.Label {
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text: speedSlider.value.toFixed(2) + "×"
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Layout.minimumWidth: 64
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}
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}
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Controls.CheckBox {
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id: runningCheck
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Kirigami.FormData.label: "Playback:"
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text: "Animate wallpaper"
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checked: true
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}
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Controls.CheckBox {
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id: mouseCheck
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text: "React to the pointer over the desktop"
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checked: true
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}
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Controls.CheckBox {
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id: watchCheck
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text: "Reload the shader when its file changes"
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checked: true
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}
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}
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}
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@@ -0,0 +1,3 @@
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module dev.emil.lumen
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plugin lumenplugin
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classname LumenPlugin
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@@ -0,0 +1,74 @@
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import QtQuick
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import org.kde.plasma.plasmoid
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import "lumen"
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WallpaperItem {
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id: root
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readonly property var activeConfiguration: {
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if (typeof wallpaper !== "undefined" && wallpaper && wallpaper.configuration)
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return wallpaper.configuration
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return typeof configuration !== "undefined" ? configuration : null
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}
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function option(name, fallback) {
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if (!activeConfiguration)
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return fallback
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const value = activeConfiguration[name]
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return value === undefined ? fallback : value
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}
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VulkanWallpaper {
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id: engine
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anchors.fill: parent
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shaderUrl: {
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const path = String(root.option("shaderPath", ""))
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return path.length > 0 ? path : Qt.resolvedUrl("shaders/Lumen.frag")
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}
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targetFps: Number(root.option("targetFps", 30))
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speed: Number(root.option("speed", 1.0))
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running: Boolean(root.option("running", true))
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mouseEnabled: Boolean(root.option("mouseEnabled", true))
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watchSource: Boolean(root.option("watchSource", true))
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}
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Rectangle {
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anchors.fill: parent
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color: "#111522"
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visible: engine.errorMessage.length > 0 && !engine.fallbackActive
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Text {
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anchors.centerIn: parent
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width: Math.min(parent.width * 0.8, 640)
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horizontalAlignment: Text.AlignHCenter
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wrapMode: Text.Wrap
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color: "#f3f5fa"
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font.pixelSize: 16
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text: "Lumen Wallpaper\n\n" + engine.errorMessage
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}
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}
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Rectangle {
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anchors.left: parent.left
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anchors.right: parent.right
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anchors.bottom: parent.bottom
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anchors.bottomMargin: 80
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height: warningText.implicitHeight + 16
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color: "#cc421f35"
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visible: engine.fallbackActive && engine.errorMessage.length > 0
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Text {
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id: warningText
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anchors.left: parent.left
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anchors.right: parent.right
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anchors.verticalCenter: parent.verticalCenter
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anchors.margins: 12
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horizontalAlignment: Text.AlignHCenter
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wrapMode: Text.Wrap
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elide: Text.ElideRight
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maximumLineCount: 3
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color: "#ffd9e2"
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text: "Lumen: using the last working shader\n" + engine.errorMessage
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}
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}
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}
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@@ -0,0 +1,67 @@
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float hash21(vec2 p) {
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p = fract(p * vec2(123.34, 456.21));
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p += dot(p, p + 45.32);
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return fract(p.x * p.y);
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}
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float noise21(vec2 p) {
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vec2 i = floor(p);
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vec2 f = fract(p);
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f = f * f * (3.0 - 2.0 * f);
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return mix(
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mix(hash21(i), hash21(i + vec2(1.0, 0.0)), f.x),
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mix(hash21(i + vec2(0.0, 1.0)), hash21(i + vec2(1.0, 1.0)), f.x),
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f.y
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);
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}
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float fbm(vec2 p) {
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float value = 0.0;
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float amplitude = 0.5;
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mat2 turn = mat2(0.80, 0.60, -0.60, 0.80);
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for (int i = 0; i < 5; i++) {
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value += amplitude * noise21(p);
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p = turn * p * 2.03 + vec2(3.1, 1.7);
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amplitude *= 0.5;
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}
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return value;
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}
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void mainImage(out vec4 fragColor, in vec2 fragCoord) {
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vec2 uv = fragCoord / iResolution.xy;
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float unit = min(iResolution.x, iResolution.y);
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vec2 p = (2.0 * fragCoord - iResolution.xy) / unit;
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vec2 mouse = (2.0 * iMouse.xy - iResolution.xy) / unit;
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float t = iTime * 0.12;
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vec2 pointerDelta = p - mouse;
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float pointerGlow = exp(-dot(pointerDelta, pointerDelta) * 4.0);
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float pressed = iMouse.z > 0.0 ? 1.0 : 0.0;
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vec2 q = vec2(
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fbm(p * 0.65 + vec2(t * 0.35, -t * 0.20)),
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fbm(p * 0.65 + vec2(4.7 - t * 0.24, 2.9 + t * 0.18))
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);
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vec2 r = vec2(
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fbm(p + q * 1.8 + vec2(1.7, 8.2) + t * 0.16),
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fbm(p + q * 1.8 + vec2(8.3, 2.8) - t * 0.13)
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);
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float field = fbm(p * 0.85 + r * 2.2 + pointerDelta * pointerGlow * 0.12);
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float ribbon = 0.5 + 0.5 * sin(10.0 * field + 3.0 * r.x - 1.8 * p.y + t * 1.4);
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float silk = pow(ribbon, 4.0);
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float edge = pow(1.0 - abs(ribbon * 2.0 - 1.0), 10.0);
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vec3 color = mix(vec3(0.006, 0.010, 0.032), vec3(0.075, 0.025, 0.16), field);
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color = mix(color, vec3(0.02, 0.65, 0.72), silk * 0.72);
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color += vec3(0.65, 0.08, 0.32) * pow(1.0 - field, 5.0) * 0.28;
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color += vec3(0.08, 0.55, 0.70) * edge * 0.16;
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color += mix(vec3(0.02, 0.55, 0.68), vec3(0.85, 0.12, 0.38), pressed)
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* pointerGlow * (0.14 + pressed * 0.18);
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float vignette = 1.0 - smoothstep(0.25, 1.25, length((uv - 0.5) * vec2(1.1, 0.9)));
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color *= 0.62 + vignette * 0.38;
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color = 1.0 - exp(-color * 1.35);
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color += (hash21(fragCoord + fract(iTime) * 91.0) - 0.5) * 0.012;
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fragColor = vec4(color, 1.0);
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}
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