mirror of
https://github.com/Swordfish90/cool-retro-term.git
synced 2025-11-04 00:52:11 +00:00
Refactor: extract noise and rasterization from terminal object.
This commit is contained in:
Filippo Scognamiglio
@@ -27,6 +27,8 @@ import QMLTermWidget 1.0
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Item{
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id: terminalContainer
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property size virtualResolution: Qt.size(kterminal.width, kterminal.height);
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//Frame displacement properties. This makes the terminal the same size of the texture.
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property real dtop: frame.item.displacementTop * shadersettings.window_scaling
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property real dleft:frame.item.displacementLeft * shadersettings.window_scaling
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@@ -42,7 +44,6 @@ Item{
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property variant theSource: mBlur !== 0 ? blurredSourceLoader.item : kterminalSource
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property variant bloomSource: bloomSourceLoader.item
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property variant rasterizationSource: rasterizationEffectSource
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property variant staticNoiseSource: staticNoiseSource
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property alias kterminal: kterminal
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@@ -338,115 +339,4 @@ Item{
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visible: false
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}
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}
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// NOISE ////////////////////////////////////////////////////////////////
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ShaderEffect {
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id: staticNoiseEffect
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anchors.fill: parent
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property real element_size: shadersettings.rasterization == shadersettings.no_rasterization ? 2 : 1
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property size virtual_resolution: Qt.size(kterminal.width / element_size, kterminal.height / element_size)
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blending: false
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fragmentShader:
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"uniform lowp float qt_Opacity;
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varying highp vec2 qt_TexCoord0;
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uniform highp vec2 virtual_resolution;" +
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"highp float noise(vec2 co)
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{
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highp float a = 12.9898;
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highp float b = 78.233;
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highp float c = 43758.5453;
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highp float dt= dot(co.xy ,vec2(a,b));
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highp float sn= mod(dt,3.14);
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return fract(sin(sn) * c);
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}
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vec2 sw(vec2 p) {return vec2( floor(p.x) , floor(p.y) );}
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vec2 se(vec2 p) {return vec2( ceil(p.x) , floor(p.y) );}
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vec2 nw(vec2 p) {return vec2( floor(p.x) , ceil(p.y) );}
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vec2 ne(vec2 p) {return vec2( ceil(p.x) , ceil(p.y) );}
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float smoothNoise(vec2 p) {
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vec2 inter = smoothstep(0., 1., fract(p));
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float s = mix(noise(sw(p)), noise(se(p)), inter.x);
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float n = mix(noise(nw(p)), noise(ne(p)), inter.x);
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return mix(s, n, inter.y);
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}" +
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"void main() {" +
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"gl_FragColor.a = smoothNoise(qt_TexCoord0 * virtual_resolution);" +
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"}"
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onStatusChanged: if (log) console.log(log) //Print warning messages
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}
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ShaderEffectSource{
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id: staticNoiseSource
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sourceItem: staticNoiseEffect
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textureSize: Qt.size(parent.width, parent.height)
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wrapMode: ShaderEffectSource.Repeat
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smooth: true
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hideSource: true
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visible: false
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}
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// RASTERIZATION //////////////////////////////////////////////////////////
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ShaderEffect {
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id: rasterizationEffect
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width: parent.width
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height: parent.height
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property real outColor: 0.0
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property real dispX: 5 / width
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property real dispY: 5 / height
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property size virtual_resolution: Qt.size(kterminal.width, kterminal.height)
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blending: false
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fragmentShader:
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"uniform lowp float qt_Opacity;" +
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"varying highp vec2 qt_TexCoord0;
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uniform highp vec2 virtual_resolution;
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uniform highp float dispX;
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uniform highp float dispY;
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uniform mediump float outColor;
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highp float getScanlineIntensity(vec2 coords) {
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highp float result = 1.0;" +
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(mScanlines != shadersettings.no_rasterization ?
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"result *= abs(sin(coords.y * virtual_resolution.y * "+Math.PI+"));" : "") +
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(mScanlines == shadersettings.pixel_rasterization ?
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"result *= abs(sin(coords.x * virtual_resolution.x * "+Math.PI+"));" : "") + "
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return result;
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}" +
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"void main() {" +
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"highp float color = getScanlineIntensity(qt_TexCoord0);" +
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"float distance = length(vec2(0.5) - qt_TexCoord0);" +
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"color = mix(color, 0.0, 1.2 * distance * distance);" +
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"color *= outColor + smoothstep(0.00, dispX, qt_TexCoord0.x) * (1.0 - outColor);" +
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"color *= outColor + smoothstep(0.00, dispY, qt_TexCoord0.y) * (1.0 - outColor);" +
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"color *= outColor + (1.0 - smoothstep(1.00 - dispX, 1.00, qt_TexCoord0.x)) * (1.0 - outColor);" +
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"color *= outColor + (1.0 - smoothstep(1.00 - dispY, 1.00, qt_TexCoord0.y)) * (1.0 - outColor);" +
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"gl_FragColor.a = color;" +
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"}"
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onStatusChanged: if (log) console.log(log) //Print warning messages
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}
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ShaderEffectSource{
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id: rasterizationEffectSource
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sourceItem: rasterizationEffect
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hideSource: true
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smooth: true
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wrapMode: ShaderEffectSource.ClampToEdge
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visible: false
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}
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}
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@@ -23,12 +23,12 @@ import QtGraphicalEffects 1.0
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ShaderEffect {
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property ShaderEffectSource rasterizationSource
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property ShaderEffectSource noiseSource
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property color font_color: shadersettings.font_color
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property color background_color: shadersettings.background_color
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property variant source: terminal.theSource
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property variant bloomSource: terminal.bloomSource
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property variant rasterizationSource: terminal.rasterizationSource
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property variant noiseSource: terminal.staticNoiseSource
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property real bloom_strength: shadersettings.bloom_strength * 2.5
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property real jitter: shadersettings.jitter * 0.007
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@@ -4,7 +4,7 @@ ShaderTerminal{
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property alias title: terminal.title
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property alias terminalSize: terminal.terminalSize
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id: shadercontainer
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id: mainShader
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opacity: shadersettings.windowOpacity * 0.3 + 0.7
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Loader{
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@@ -13,8 +13,121 @@ ShaderTerminal{
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z: 2.1
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source: shadersettings.frame_source
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}
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PreprocessedTerminal{
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id: terminal
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anchors.fill: parent
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}
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// NOISE ////////////////////////////////////////////////////////////////
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ShaderEffect {
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id: staticNoiseEffect
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anchors.fill: parent
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property real element_size: shadersettings.rasterization == shadersettings.no_rasterization ? 2 : 1
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property alias __terminalHeight: terminal.virtualResolution.height
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property alias __terminalWidth: terminal.virtualResolution.width
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property size virtual_resolution: Qt.size(__terminalWidth / element_size, __terminalHeight / element_size)
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blending: false
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fragmentShader:
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"uniform lowp float qt_Opacity;
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varying highp vec2 qt_TexCoord0;
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uniform highp vec2 virtual_resolution;" +
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"highp float noise(vec2 co)
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{
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highp float a = 12.9898;
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highp float b = 78.233;
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highp float c = 43758.5453;
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highp float dt= dot(co.xy ,vec2(a,b));
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highp float sn= mod(dt,3.14);
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return fract(sin(sn) * c);
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}
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vec2 sw(vec2 p) {return vec2( floor(p.x) , floor(p.y) );}
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vec2 se(vec2 p) {return vec2( ceil(p.x) , floor(p.y) );}
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vec2 nw(vec2 p) {return vec2( floor(p.x) , ceil(p.y) );}
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vec2 ne(vec2 p) {return vec2( ceil(p.x) , ceil(p.y) );}
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float smoothNoise(vec2 p) {
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vec2 inter = smoothstep(0., 1., fract(p));
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float s = mix(noise(sw(p)), noise(se(p)), inter.x);
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float n = mix(noise(nw(p)), noise(ne(p)), inter.x);
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return mix(s, n, inter.y);
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}" +
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"void main() {" +
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"gl_FragColor.a = smoothNoise(qt_TexCoord0 * virtual_resolution);" +
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"}"
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onStatusChanged: if (log) console.log(log) //Print warning messages
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}
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noiseSource: ShaderEffectSource{
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id: staticNoiseSource
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sourceItem: staticNoiseEffect
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textureSize: Qt.size(mainShader.width, mainShader.height)
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wrapMode: ShaderEffectSource.Repeat
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smooth: true
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hideSource: true
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visible: false
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}
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ShaderEffect {
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id: rasterizationEffect
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width: parent.width
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height: parent.height
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property real outColor: 0.0
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property real dispX: (5 / width) * shadersettings.window_scaling
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property real dispY: 5 / height * shadersettings.window_scaling
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property size virtual_resolution: terminal.virtualResolution
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blending: false
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fragmentShader:
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"uniform lowp float qt_Opacity;" +
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"varying highp vec2 qt_TexCoord0;
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uniform highp vec2 virtual_resolution;
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uniform highp float dispX;
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uniform highp float dispY;
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uniform mediump float outColor;
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highp float getScanlineIntensity(vec2 coords) {
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highp float result = 1.0;" +
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(shadersettings.rasterization != shadersettings.no_rasterization ?
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"result *= abs(sin(coords.y * virtual_resolution.y * "+Math.PI+"));" : "") +
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(shadersettings.rasterization == shadersettings.pixel_rasterization ?
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"result *= abs(sin(coords.x * virtual_resolution.x * "+Math.PI+"));" : "") + "
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return result;
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}" +
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"void main() {" +
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"highp float color = getScanlineIntensity(qt_TexCoord0);" +
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"float distance = length(vec2(0.5) - qt_TexCoord0);" +
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"color = mix(color, 0.0, 1.2 * distance * distance);" +
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"color *= outColor + smoothstep(0.00, dispX, qt_TexCoord0.x) * (1.0 - outColor);" +
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"color *= outColor + smoothstep(0.00, dispY, qt_TexCoord0.y) * (1.0 - outColor);" +
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"color *= outColor + (1.0 - smoothstep(1.00 - dispX, 1.00, qt_TexCoord0.x)) * (1.0 - outColor);" +
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"color *= outColor + (1.0 - smoothstep(1.00 - dispY, 1.00, qt_TexCoord0.y)) * (1.0 - outColor);" +
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"gl_FragColor.a = color;" +
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"}"
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onStatusChanged: if (log) console.log(log) //Print warning messages
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}
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rasterizationSource: ShaderEffectSource{
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id: rasterizationEffectSource
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sourceItem: rasterizationEffect
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hideSource: true
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smooth: true
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wrapMode: ShaderEffectSource.ClampToEdge
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visible: false
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}
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}
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