🎉 Add initial version of a glitch effect

This commit is contained in:
Simon Schneegans
2023-01-02 20:28:33 +01:00
parent 1b0ab3f127
commit 7840665589
10 changed files with 944 additions and 0 deletions
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//////////////////////////////////////////////////////////////////////////////////////////
// ) ( //
// ( /( ( ( ) ( ( ( ( )\ ) ( ( //
// )\()) ))\ )( ( ( )\ ) )\))( )\ ( (()/( ( )\))( ( //
// ((_)\ /((_|()\ )\ ) )\ '(()/( ((_)()((_) )\ ) ((_)))\((_)()\ )\ //
// | |(_|_))( ((_)_(_/( _((_)) )(_)) _(()((_|_)_(_/( _| |((_)(()((_|(_) //
// | '_ \ || | '_| ' \)) | ' \()| || | \ V V / | ' \)) _` / _ \ V V (_-< //
// |_.__/\_,_|_| |_||_| |_|_|_| \_, | \_/\_/|_|_||_|\__,_\___/\_/\_//__/ //
// |__/ //
//////////////////////////////////////////////////////////////////////////////////////////
// SPDX-FileCopyrightText: Simon Schneegans <code@simonschneegans.de>
// SPDX-License-Identifier: GPL-3.0-or-later
// The content from common.glsl is automatically prepended to each shader effect.
uniform vec3 uColor;
uniform float uScale;
uniform float uStrength;
uniform float uSpeed;
// Somewhat inspired by https://www.shadertoy.com/view/XtK3W3
void main() {
float progress = (uForOpening ? 1.0 - uProgress : uProgress);
float time = 7.5 * progress * uDuration * uSpeed;
float strength = uStrength * progress;
float displace = 750.0 * strength / uSize.x;
float yPos = uScale * uSize.y * iTexCoord.y;
// Create large, incidental noise waves.
float noise = clamp(simplex2D(vec2(time, yPos * 0.002)) - 0.3, 0.0, 1.0);
// Offset by smaller, constant noise waves.
noise = noise + (simplex2D(vec2(time * 10.0, yPos * 0.05)) - 0.5) * 0.15;
// Apply the noise as x displacement for every line.
float xPos = clamp(iTexCoord.x - displace * noise * noise, 0.0, 1.0);
vec4 oColor = getInputColor(vec2(xPos, iTexCoord.y));
// Mix in some random interference lines.
vec3 interference = uColor * hash12(vec2(yPos * time));
float interferenceStrength = noise * min(strength, 1.0);
oColor.rgb = mix(oColor.rgb, interference, interferenceStrength);
// Apply a line pattern every 4 pixels.
if (floor(mod(yPos * 0.25, 2.0)) == 0.0) {
oColor.rgb = mix(uColor, oColor.rgb, 1.0 - (0.15 * noise));
}
// Shift green/blue channels.
oColor.g = mix(oColor.g,
getInputColor(vec2(xPos + noise * 0.1 * displace, iTexCoord.y)).g, 0.25);
oColor.b = mix(oColor.b,
getInputColor(vec2(xPos - noise * 0.1 * displace, iTexCoord.y)).b, 0.25);
// Dissolve the window.
if (progress > mix(1.0 - noise, max(max(oColor.r, oColor.g), oColor.b), 0.5)) {
oColor.a = 0.0;
}
setOutputColor(oColor);
}
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<?xml version="1.0" encoding="UTF-8"?>
<!--
SPDX-FileCopyrightText: Simon Schneegans <code@simonschneegans.de>
SPDX-License-Identifier: GPL-3.0-or-later
-->
<interface domain="burn-my-windows">
<object class="AdwExpanderRow" id="glitch-prefs">
<child>
<object class="AdwActionRow">
<property name="title" translatable="yes">Animation Time [ms]</property>
<child>
<object class="GtkScale">
<property name="valign">center</property>
<property name="draw-value">1</property>
<property name="digits">0</property>
<property name="value-pos">left</property>
<property name="width-request">300</property>
<property name="adjustment">
<object class="GtkAdjustment" id="glitch-animation-time">
<property name="upper">2000</property>
<property name="lower">100</property>
<property name="step-increment">1</property>
<property name="page-increment">100</property>
</object>
</property>
</object>
</child>
<child>
<object class="GtkButton" id="reset-glitch-animation-time">
<property name="icon-name">edit-clear-symbolic</property>
<property name="valign">center</property>
<property name="tooltip-text" translatable="yes">Reset to Default Value</property>
<style>
<class name="flat" />
</style>
</object>
</child>
</object>
</child>
<child>
<object class="AdwActionRow">
<property name="title" translatable="yes">Scale</property>
<child>
<object class="GtkScale">
<property name="valign">center</property>
<property name="draw-value">1</property>
<property name="digits">2</property>
<property name="value-pos">left</property>
<property name="width-request">300</property>
<property name="adjustment">
<object class="GtkAdjustment" id="glitch-scale">
<property name="upper">10</property>
<property name="lower">0.1</property>
<property name="step-increment">0.01</property>
<property name="page-increment">0.1</property>
</object>
</property>
</object>
</child>
<child>
<object class="GtkButton" id="reset-glitch-scale">
<property name="icon-name">edit-clear-symbolic</property>
<property name="valign">center</property>
<property name="tooltip-text" translatable="yes">Reset to Default Value</property>
<style>
<class name="flat" />
</style>
</object>
</child>
</object>
</child>
<child>
<object class="AdwActionRow">
<property name="title" translatable="yes">Strength</property>
<child>
<object class="GtkScale">
<property name="valign">center</property>
<property name="draw-value">1</property>
<property name="digits">2</property>
<property name="value-pos">left</property>
<property name="width-request">300</property>
<property name="adjustment">
<object class="GtkAdjustment" id="glitch-strength">
<property name="upper">10</property>
<property name="lower">0.1</property>
<property name="step-increment">0.01</property>
<property name="page-increment">0.1</property>
</object>
</property>
</object>
</child>
<child>
<object class="GtkButton" id="reset-glitch-strength">
<property name="icon-name">edit-clear-symbolic</property>
<property name="valign">center</property>
<property name="tooltip-text" translatable="yes">Reset to Default Value</property>
<style>
<class name="flat" />
</style>
</object>
</child>
</object>
</child>
<child>
<object class="AdwActionRow">
<property name="title" translatable="yes">Speed</property>
<child>
<object class="GtkScale">
<property name="valign">center</property>
<property name="draw-value">1</property>
<property name="digits">2</property>
<property name="value-pos">left</property>
<property name="width-request">300</property>
<property name="adjustment">
<object class="GtkAdjustment" id="glitch-speed">
<property name="upper">10</property>
<property name="lower">0.1</property>
<property name="step-increment">0.01</property>
<property name="page-increment">0.1</property>
</object>
</property>
</object>
</child>
<child>
<object class="GtkButton" id="reset-glitch-speed">
<property name="icon-name">edit-clear-symbolic</property>
<property name="valign">center</property>
<property name="tooltip-text" translatable="yes">Reset to Default Value</property>
<style>
<class name="flat" />
</style>
</object>
</child>
</object>
</child>
<child>
<object class="AdwActionRow">
<property name="title" translatable="yes">Color</property>
<property name="activatable-widget">glitch-color</property>
<child>
<object class="GtkColorButton" id="glitch-color">
<property name="valign">center</property>
<property name="width-request">250</property>
<property name="use_alpha">0</property>
<property name="show_editor">1</property>
</object>
</child>
<child>
<object class="GtkButton" id="reset-glitch-color">
<property name="icon-name">edit-clear-symbolic</property>
<property name="valign">center</property>
<property name="tooltip-text" translatable="yes">Reset to Default Value</property>
<style>
<class name="flat" />
</style>
</object>
</child>
</object>
</child>
</object>
</interface>
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<?xml version="1.0" encoding="UTF-8"?>
<!--
SPDX-FileCopyrightText: Simon Schneegans <code@simonschneegans.de>
SPDX-License-Identifier: GPL-3.0-or-later
-->
<interface domain="burn-my-windows">
<object class="GtkAdjustment" id="glitch-animation-time">
<property name="upper">2000</property>
<property name="lower">100</property>
<property name="step-increment">1</property>
<property name="page-increment">100</property>
</object>
<object class="GtkAdjustment" id="glitch-scale">
<property name="upper">10</property>
<property name="lower">0.1</property>
<property name="step-increment">0.01</property>
<property name="page-increment">0.1</property>
</object>
<object class="GtkAdjustment" id="glitch-strength">
<property name="upper">10</property>
<property name="lower">0.1</property>
<property name="step-increment">0.01</property>
<property name="page-increment">0.1</property>
</object>
<object class="GtkAdjustment" id="glitch-speed">
<property name="upper">10</property>
<property name="lower">0.1</property>
<property name="step-increment">0.01</property>
<property name="page-increment">0.1</property>
</object>
<object class="GtkBox" id="glitch-prefs">
<property name="orientation">vertical</property>
<child>
<object class="GtkFrame">
<child>
<object class="GtkListBox">
<property name="selection-mode">none</property>
<style>
<class name="rich-list" />
</style>
<child>
<object class="GtkListBoxRow">
<property name="margin-start">10</property>
<property name="margin-end">10</property>
<property name="margin-top">10</property>
<property name="margin-bottom">10</property>
<property name="activatable">0</property>
<child>
<object class="GtkBox">
<property name="spacing">8</property>
<child>
<object class="GtkLabel">
<property name="label" translatable="yes">Animation Time [ms]</property>
<property name="xalign">0</property>
<property name="halign">start</property>
<property name="valign">center</property>
<property name="hexpand">1</property>
</object>
</child>
<child>
<object class="GtkScale">
<property name="halign">end</property>
<property name="valign">center</property>
<property name="draw-value">1</property>
<property name="digits">0</property>
<property name="value-pos">left</property>
<property name="width-request">300</property>
<property name="adjustment">glitch-animation-time</property>
</object>
</child>
<child>
<object class="GtkButton" id="reset-glitch-animation-time">
<child>
<object class="GtkImage">
<property name="icon-name">edit-clear-symbolic</property>
<property name="icon-size">1</property>
</object>
</child>
<property name="tooltip-text" translatable="yes">Reset to Default Value</property>
<style>
<class name="flat" />
</style>
</object>
</child>
</object>
</child>
</object>
</child>
<child>
<object class="GtkListBoxRow">
<property name="margin-start">10</property>
<property name="margin-end">10</property>
<property name="margin-top">10</property>
<property name="margin-bottom">10</property>
<property name="activatable">0</property>
<child>
<object class="GtkBox">
<property name="spacing">8</property>
<child>
<object class="GtkLabel">
<property name="label" translatable="yes">Scale</property>
<property name="xalign">0</property>
<property name="halign">start</property>
<property name="valign">center</property>
<property name="hexpand">1</property>
</object>
</child>
<child>
<object class="GtkScale">
<property name="halign">end</property>
<property name="valign">center</property>
<property name="draw-value">1</property>
<property name="digits">2</property>
<property name="value-pos">left</property>
<property name="width-request">300</property>
<property name="adjustment">glitch-scale</property>
</object>
</child>
<child>
<object class="GtkButton" id="reset-glitch-scale">
<child>
<object class="GtkImage">
<property name="icon-name">edit-clear-symbolic</property>
<property name="icon-size">1</property>
</object>
</child>
<property name="tooltip-text" translatable="yes">Reset to Default Value</property>
<style>
<class name="flat" />
</style>
</object>
</child>
</object>
</child>
</object>
</child>
<child>
<object class="GtkListBoxRow">
<property name="margin-start">10</property>
<property name="margin-end">10</property>
<property name="margin-top">10</property>
<property name="margin-bottom">10</property>
<property name="activatable">0</property>
<child>
<object class="GtkBox">
<property name="spacing">8</property>
<child>
<object class="GtkLabel">
<property name="label" translatable="yes">Strength</property>
<property name="xalign">0</property>
<property name="halign">start</property>
<property name="valign">center</property>
<property name="hexpand">1</property>
</object>
</child>
<child>
<object class="GtkScale">
<property name="halign">end</property>
<property name="valign">center</property>
<property name="draw-value">1</property>
<property name="digits">2</property>
<property name="value-pos">left</property>
<property name="width-request">300</property>
<property name="adjustment">glitch-strength</property>
</object>
</child>
<child>
<object class="GtkButton" id="reset-glitch-strength">
<child>
<object class="GtkImage">
<property name="icon-name">edit-clear-symbolic</property>
<property name="icon-size">1</property>
</object>
</child>
<property name="tooltip-text" translatable="yes">Reset to Default Value</property>
<style>
<class name="flat" />
</style>
</object>
</child>
</object>
</child>
</object>
</child>
<child>
<object class="GtkListBoxRow">
<property name="margin-start">10</property>
<property name="margin-end">10</property>
<property name="margin-top">10</property>
<property name="margin-bottom">10</property>
<property name="activatable">0</property>
<child>
<object class="GtkBox">
<property name="spacing">8</property>
<child>
<object class="GtkLabel">
<property name="label" translatable="yes">Speed</property>
<property name="xalign">0</property>
<property name="halign">start</property>
<property name="valign">center</property>
<property name="hexpand">1</property>
</object>
</child>
<child>
<object class="GtkScale">
<property name="halign">end</property>
<property name="valign">center</property>
<property name="draw-value">1</property>
<property name="digits">2</property>
<property name="value-pos">left</property>
<property name="width-request">300</property>
<property name="adjustment">glitch-speed</property>
</object>
</child>
<child>
<object class="GtkButton" id="reset-glitch-speed">
<child>
<object class="GtkImage">
<property name="icon-name">edit-clear-symbolic</property>
<property name="icon-size">1</property>
</object>
</child>
<property name="tooltip-text" translatable="yes">Reset to Default Value</property>
<style>
<class name="flat" />
</style>
</object>
</child>
</object>
</child>
</object>
</child>
<child>
<object class="GtkListBoxRow">
<property name="margin-start">10</property>
<property name="margin-end">10</property>
<property name="margin-top">10</property>
<property name="margin-bottom">10</property>
<property name="activatable">0</property>
<child>
<object class="GtkBox">
<child>
<object class="GtkLabel">
<property name="label" translatable="yes">Color</property>
<property name="xalign">0</property>
<property name="halign">start</property>
<property name="valign">center</property>
<property name="hexpand">1</property>
</object>
</child>
<child>
<object class="GtkColorButton" id="glitch-color">
<property name="use_alpha">0</property>
<property name="show_editor">1</property>
</object>
</child>
<child>
<object class="GtkButton" id="reset-glitch-color">
<child>
<object class="GtkImage">
<property name="icon-name">edit-clear-symbolic</property>
<property name="icon-size">1</property>
</object>
</child>
<property name="tooltip-text" translatable="yes">Reset to Default Value</property>
<style>
<class name="flat" />
</style>
</object>
</child>
</object>
</child>
</object>
</child>
</object>
</child>
</object>
</child>
</object>
</interface>
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<?xml version="1.0" encoding="UTF-8"?>
<!--
SPDX-FileCopyrightText: Simon Schneegans <code@simonschneegans.de>
SPDX-License-Identifier: GPL-3.0-or-later
-->
<interface domain="burn-my-windows">
<object class="GtkBox" id="glitch-prefs">
<property name="orientation">vertical</property>
<child>
<object class="GtkFrame">
<child>
<object class="GtkListBox">
<property name="selection-mode">none</property>
<property name="show-separators">1</property>
<style>
<class name="rich-list" />
</style>
<child>
<object class="GtkListBoxRow">
<property name="activatable">0</property>
<child>
<object class="GtkBox">
<child>
<object class="GtkLabel">
<property name="label" translatable="yes">Animation Time [ms]</property>
<property name="xalign">0</property>
<property name="halign">start</property>
<property name="valign">center</property>
<property name="hexpand">1</property>
</object>
</child>
<child>
<object class="GtkScale">
<property name="halign">end</property>
<property name="valign">center</property>
<property name="draw-value">1</property>
<property name="digits">0</property>
<property name="value-pos">left</property>
<property name="width-request">300</property>
<property name="adjustment">
<object class="GtkAdjustment" id="glitch-animation-time">
<property name="upper">2000</property>
<property name="lower">100</property>
<property name="step-increment">1</property>
<property name="page-increment">100</property>
</object>
</property>
</object>
</child>
<child>
<object class="GtkButton" id="reset-glitch-animation-time">
<property name="icon-name">edit-clear-symbolic</property>
<property name="tooltip-text" translatable="yes">Reset to Default Value</property>
<style>
<class name="flat" />
</style>
</object>
</child>
</object>
</child>
</object>
</child>
<child>
<object class="GtkListBoxRow">
<property name="activatable">0</property>
<child>
<object class="GtkBox">
<child>
<object class="GtkLabel">
<property name="label" translatable="yes">Scale</property>
<property name="xalign">0</property>
<property name="halign">start</property>
<property name="valign">center</property>
<property name="hexpand">1</property>
</object>
</child>
<child>
<object class="GtkScale">
<property name="halign">end</property>
<property name="valign">center</property>
<property name="draw-value">1</property>
<property name="digits">2</property>
<property name="value-pos">left</property>
<property name="width-request">300</property>
<property name="adjustment">
<object class="GtkAdjustment" id="glitch-scale">
<property name="upper">10</property>
<property name="lower">0.1</property>
<property name="step-increment">0.01</property>
<property name="page-increment">0.1</property>
</object>
</property>
</object>
</child>
<child>
<object class="GtkButton" id="reset-glitch-scale">
<property name="icon-name">edit-clear-symbolic</property>
<property name="tooltip-text" translatable="yes">Reset to Default Value</property>
<style>
<class name="flat" />
</style>
</object>
</child>
</object>
</child>
</object>
</child>
<child>
<object class="GtkListBoxRow">
<property name="activatable">0</property>
<child>
<object class="GtkBox">
<child>
<object class="GtkLabel">
<property name="label" translatable="yes">Strength</property>
<property name="xalign">0</property>
<property name="halign">start</property>
<property name="valign">center</property>
<property name="hexpand">1</property>
</object>
</child>
<child>
<object class="GtkScale">
<property name="halign">end</property>
<property name="valign">center</property>
<property name="draw-value">1</property>
<property name="digits">2</property>
<property name="value-pos">left</property>
<property name="width-request">300</property>
<property name="adjustment">
<object class="GtkAdjustment" id="glitch-strength">
<property name="upper">10</property>
<property name="lower">0.1</property>
<property name="step-increment">0.01</property>
<property name="page-increment">0.1</property>
</object>
</property>
</object>
</child>
<child>
<object class="GtkButton" id="reset-glitch-strength">
<property name="icon-name">edit-clear-symbolic</property>
<property name="tooltip-text" translatable="yes">Reset to Default Value</property>
<style>
<class name="flat" />
</style>
</object>
</child>
</object>
</child>
</object>
</child>
<child>
<object class="GtkListBoxRow">
<property name="activatable">0</property>
<child>
<object class="GtkBox">
<child>
<object class="GtkLabel">
<property name="label" translatable="yes">Speed</property>
<property name="xalign">0</property>
<property name="halign">start</property>
<property name="valign">center</property>
<property name="hexpand">1</property>
</object>
</child>
<child>
<object class="GtkScale">
<property name="halign">end</property>
<property name="valign">center</property>
<property name="draw-value">1</property>
<property name="digits">2</property>
<property name="value-pos">left</property>
<property name="width-request">300</property>
<property name="adjustment">
<object class="GtkAdjustment" id="glitch-speed">
<property name="upper">10</property>
<property name="lower">0.1</property>
<property name="step-increment">0.01</property>
<property name="page-increment">0.1</property>
</object>
</property>
</object>
</child>
<child>
<object class="GtkButton" id="reset-glitch-speed">
<property name="icon-name">edit-clear-symbolic</property>
<property name="tooltip-text" translatable="yes">Reset to Default Value</property>
<style>
<class name="flat" />
</style>
</object>
</child>
</object>
</child>
</object>
</child>
<child>
<object class="GtkListBoxRow">
<property name="activatable">0</property>
<child>
<object class="GtkBox">
<child>
<object class="GtkLabel">
<property name="label" translatable="yes">Color</property>
<property name="xalign">0</property>
<property name="halign">start</property>
<property name="valign">center</property>
<property name="hexpand">1</property>
</object>
</child>
<child>
<object class="GtkColorButton" id="glitch-color">
<property name="use_alpha">0</property>
<property name="show_editor">1</property>
</object>
</child>
<child>
<object class="GtkButton" id="reset-glitch-color">
<property name="icon-name">edit-clear-symbolic</property>
<property name="tooltip-text" translatable="yes">Reset to Default Value</property>
<style>
<class name="flat" />
</style>
</object>
</child>
</object>
</child>
</object>
</child>
</object>
</child>
</object>
</child>
</object>
</interface>