moved hypr scripts

2026-10-02 02:06:46 +02:00
parent 37fb63549e
commit f338147907
22 changed files with 610 additions and 5 deletions
--- a/modules/desktop/hypr-plugins.nix
+++ b/modules/desktop/hypr-plugins.nix
@@ -37,8 +37,5 @@ in
    ] ++ map (name: { match.tag = "shader/${name}"; "darkwindow:shade" = "${name}";}) shaders;
  };

-
-
-  # TODO: symlink ./windowShaders into ~/.config/hypr/ 
-  # TODO: symlink ./shaders into ~/.config/hypr/  <- should happen in desktop/hypr.nix prolly
+  home-manager.users."djai".home.file.".config/hypr/windowShaders".source = ./windowShaders;
 }
--- a/modules/desktop/hypr.nix
+++ b/modules/desktop/hypr.nix
@@ -65,7 +65,8 @@ in
    };
  };

-  # TODO: symlink entire shellscript directory here.
+  home-manager.users."djai".home.file.".config/hypr/scripts".source = ./scripts;
+  home-manager.users."djai".home.file.".config/hypr/shaders".source = ./shaders;

  home-manager.users."djai".wayland.windowManager.hyprland = {
    enable = true;
--- a/modules/desktop/scripts/bg.fish
+++ b/modules/desktop/scripts/bg.fish
@@ -0,0 +1,66 @@
+#!/usr/bin/env fish
+
+# This script randomly switches the background (through fehbg) every 5 to 30 minutes.
+# It selects a random image from the ~/Pictures/Wallpapers folder (including subdirectories)
+# Any hidden files in this folder are excluded.
+
+# in-place awk script
+set awkcommand '
+BEGIN {
+  FS=", " 
+  width=1920
+  height=1080
+}
+
+
+NR == 1 {
+  x = $1
+  y = $2
+
+  if (x < 0) {
+    x = width + x
+  }
+  
+  if (y < 0) {
+    y = height + y
+  }
+
+  print x ","  y
+}
+'
+
+# kill old instances
+for i in (ps -C (basename (status filename)) | awk 'FNR>1 {print $1}')
+  if test $i -ne $fish_pid
+       kill $i
+  end
+end
+
+
+# set bg
+swaybg -i $(find ~/Pictures/wallpapers -type f -regextype posix-extended -iregex "/(.*/)*[^\.]*\.(png|jpe?g|webp|gif)" | sort -R | head -n1)
+while true 
+  set rand (math "(floor $(random 300 1800) / 60) * 60")
+
+  # countdown
+  while test $rand -gt 0
+    set minutes (math "floor $rand / 60 ")
+
+    printf '\r\033[K%.2d:00' $minutes 
+
+    sleep 60
+    set rand (math $rand - 60 )
+  end
+ 
+  # update wallpaper 
+  swaybg -i $(find ~/Pictures/wallpapers -type f -regextype posix-extended -iregex "/(.*/)*[^\.]*\.(png|jpe?g|webp|gif)" | sort -R | head -n1)
+  set newpid $last_pid
+  sleep 0.2
+  for pid in (pgrep -x swaybg)
+    if test $pid -ne $last_pid
+      kill $pid 
+    end 
+  end
+end
+
+
--- a/modules/desktop/scripts/gamemode_hypr.sh
+++ b/modules/desktop/scripts/gamemode_hypr.sh
@@ -0,0 +1,15 @@
+#!/usr/bin/env sh
+
+HYPRGAMEMODE=$(hyprctl getoption animations:enabled | awk 'NR==1{print $2}')
+GAMING_PROFILE="GAMEINK"
+
+if [ "$HYPRGAMEMODE" = "true" ] ; then
+hyprctl eval 'hl.config({ animations = { enabled = false }, decoration = { blur = { enabled = false}, rounding = 0, shadow = { enabled = false }, fullscreen_opacity = 1}, general = { border_size = 1, gaps_in = 0, gaps_out = 0}})'
+  tailor profile set "$GAMING_PROFILE"
+  dunstify -r 55421 -t 2000 -u low -i ~/.icons/candy-icons/apps/scalable/teamspeak.svg "Gamemode on"
+  exit
+else
+  dunstify -r 55421 -t 2000 -u low -i ~/.icons/candy-icons/apps/scalable/teamspeak.svg "Gamemode off"
+  hyprctl reload
+  exit 0
+fi
--- a/modules/desktop/scripts/gamemode_power.sh
+++ b/modules/desktop/scripts/gamemode_power.sh
@@ -0,0 +1,25 @@
+#!/usr/bin/env bash
+
+# Toggles the GAMING_PROFILE tuxedo power profile
+
+GAMEMODE=$(tailor profile list | grep active | cut --fields 1 -d' ')
+GAMING_PROFILE="GAMEINK"
+DEFAULT_PROFILE="HOTHOTHOT"
+
+function failure() {
+  dunstify -r 55422 -t 4000 -u normal -i ~/.icons/candy-icons/apps/scalable/teamspeak.svg "Failed to toggle power profile!"
+  exit 1
+}
+
+if [[ "$GAMEMODE" =~ "GAMEINK" ]] ; then
+  # Default profile
+  tailor profile set "$DEFAULT_PROFILE" || failure
+  dunstify -r 55422 -t 2000 -u low -i ~/.icons/candy-icons/apps/scalable/teamspeak.svg "Gaming power profile deactivated"
+  exit 0
+else
+  # gaming profile
+  tailor profile set "$GAMING_PROFILE" || failure
+  dunstify -r 55422 -t 2000 -u low -i ~/.icons/candy-icons/apps/scalable/teamspeak.svg "Gaming power profile activated"
+  hyprctl reload
+  exit 0
+fi
--- a/modules/desktop/scripts/keybinds.sh
+++ b/modules/desktop/scripts/keybinds.sh
@@ -0,0 +1,75 @@
+#!/usr/bin/env bash
+
+# This script visualizes all keybindings in the hyprland config.
+# It also executes the associated command, if a keybinding is selected.
+# It uses an Awk script, column -t, and rofi-dmenu to do so.
+# Furthermore, rofi-dmenu expects the file ~/.config/rofi/keybinds.rasi to exist for theming.
+
+# Awk script used for parsing `hyprctl binds`
+# Basically:
+# $1 contains submap; if empty replace with Default; also replaces shutdown mode. 
+# $2 contains modmap; parsed and replaced with human-readable modifiers
+# $3 contains key
+# $4 contains description
+awkcommand='
+BEGIN {
+  FS="\t"
+}
+
+{
+  # submap
+  if ($1 == "") {
+    submap = "Default"  
+  } else {
+    submap = $1
+    if (submap == "l  e  s  h  r  ^s") {
+      submap = "Shutdown"
+    }
+  }
+
+  # modmap parse
+  modmap = $2
+  mods = "1"
+  if (modmap >= 64) {
+    mods = gensub(/1/, " 1", 1, mods)
+    modmap = modmap - 64
+  }
+  if (modmap >= 8) {
+    mods = gensub(/1/, "Alt 1", 1, mods)
+    modmap = modmap - 8
+  }
+  if (modmap >= 4) {
+    mods = gensub(/1/, "Ctrl 1", 1, mods)
+    modmap = modmap - 4
+  }
+  if (modmap >= 1) {
+    mods = gensub(/1/, "Shift 1", 1, mods)
+    modmap = modmap - 1
+  }
+  mods = gensub(/1/, "", 1, mods)
+
+  # output
+  printf "%s,%s%s,%s\n", submap, mods, $3, $4
+}
+'
+
+
+# get binds
+binds=$(hyprctl binds -j | jq -r '.[] | select(.description != "") | [.submap, .modmask, .key, .description, .dispatcher, .arg] | @tsv')
+idx=$(printf "%s" "$binds" | awk -F'\t' "$awkcommand" | column -ts',' | rofi -i -dmenu -p "Keybinds" -config ~/.config/rofi/keybinds.rasi -format d)
+
+exit
+# This is permanently borked i think.
+# Since hyprland0.55 (the lua update), hyprctl binds no longer provides the actual command
+# Instead, a pointer to a lua fragment is printed instead, which we can't do anything with.
+
+# exit if user does not make a selection.
+if [[  $idx -eq 0 ]]; then
+  printf "No command selected.\nExiting..\n"
+  exit
+fi
+
+# get line
+cmdline=$(printf "%s" "$binds" | awk -F'\t' "NR == $idx {printf \"%s %s\", \$5, \$6}")
+# run hyprctl dispatch $5 $6 (< 5,6 of line not shell script)
+hyprctl eval $cmdline
--- a/modules/desktop/scripts/screenshot_float.sh
+++ b/modules/desktop/scripts/screenshot_float.sh
@@ -0,0 +1,25 @@
+#!/usr/bin/env bash
+
+# This script allows the user to make a screenshot (through slurp)
+# and will then open said screenshot from the clipboard into feh
+# it will also make the feh window floating, and move it to the original position of the selection
+
+
+slop=$(slurp -f "%x,%y %wx%h" || exit 1)
+# If the capture was cancelled, out will be empty
+if [[ -n "$slop" ]]; then
+  # get x,y of selection
+  coords=$(echo "$slop" | awk -F' ' '{print $1}')
+  x=$(echo "$coords" | awk -F',' '{print $1}')
+  y=$(echo "$coords" | awk -F',' '{print $2}')
+
+  grim -g "$slop" - | wl-copy
+  grim -g "$slop" - | feh - -T notitle --class 'floatme' &
+  pid="$!"
+
+  while [[ -z $(wmctrl -lp | awk -vpid=$pid '$3==pid {print $1; exit}') ]]; do
+    sleep 0.05
+  done
+  hyprctl dispatch "hl.dsp.window.move({ x = \"$x\", y = \"$y\", relative = false})"
+fi
+
--- a/modules/desktop/scripts/shader_picker.sh
+++ b/modules/desktop/scripts/shader_picker.sh
@@ -0,0 +1,43 @@
+#!/usr/bin/env bash
+
+# This script allows toggling the active screen_shader used in hyprland. 
+# It automatically discovers shader files in the $SHADERDIR folder.
+# And uses rofi for a graphical gui-- this uses the shaders.rasi configuration file.
+# (Also dunst for notifications.)
+
+SHADERDIR="$HOME/.config/hypr/shaders/"
+
+
+function dunst() {
+  dunstify \
+  -r 2137 \
+  -t 2000 \
+  -u low \
+  -i ~/.icons/candy-icons/apps/scalable/applets-screenshooter.svg \
+  "${1/.*/}"
+}
+
+
+shaders="reset,
+$(find "$SHADERDIR" -type f -regextype posix-extended -iregex '.*(frag|vert|glsl)$' | awk -F'[./]' '{printf "%s,%s.%s\n", $(NF-1), $(NF-1), $NF}')"
+
+idx=$(printf "%s" "$shaders" | awk -F',' '{print $1}' | rofi -i -dmenu -P Shaders -config ~/.config/rofi/shaders.rasi -format d)
+
+
+# apply selected shader (if any)
+if [[  $idx -eq 0 ]]; then
+  printf "No shader selected.\nExiting..\n"
+  exit
+fi
+
+if [[ $idx -eq 1 ]]; then
+  # selected reset, which is a special case
+  hyprctl reload
+  dunst "Reset shader"
+  exit
+fi
+
+file=$(printf "%s" "$shaders" | awk -F',' "NR == $idx {printf \"%s\n\", \$2}")
+hyprctl dispatch "hl.config({ decoration = { screen_shader = '$SHADERDIR/$file'}})"
+dunst "Applied shader $file"
+
--- a/modules/desktop/scripts/shader_picker_window.sh
+++ b/modules/desktop/scripts/shader_picker_window.sh
@@ -0,0 +1,44 @@
+#!/usr/bin/env bash
+
+# This script allows toggling the active screen_shader used in hyprland. 
+# It automatically discovers shader files in the $SHADERDIR folder.
+# And uses rofi for a graphical gui-- this uses the shaders.rasi configuration file.
+# (Also dunst for notifications.)
+
+SHADERDIR="$HOME/.config/hypr/windowShaders/"
+
+
+function dunst() {
+  dunstify \
+  -r 2137 \
+  -t 2000 \
+  -u low \
+  -i ~/.icons/candy-icons/apps/scalable/applets-screenshooter.svg \
+  "${1/.*/}"
+}
+
+
+shaders="reset,
+$(find "$SHADERDIR" -type f,l -regextype posix-extended -iregex '.*(frag|vert|glsl)$' | awk -F'[./]' '{printf "%s,%s.%s\n", $(NF-1), $(NF-1), $NF}')"
+
+idx=$(printf "%s" "$shaders" | awk -F',' '{print $1}' | rofi -i -dmenu -P Shaders -config ~/.config/rofi/shaders.rasi -format d)
+
+
+# apply selected shader (if any)
+if [[  $idx -eq 0 ]]; then
+  printf "No shader selected.\nExiting..\n"
+  exit
+fi
+
+if [[ $idx -eq 1 ]]; then
+  # selected reset, which is a special case
+  hyprctl dispatch 'hl.dsp.window.clear_tags()'
+  hyprctl reload
+  dunst "Reset shader"
+  exit
+fi
+
+name=$(printf "%s" "$shaders" | awk -F',' "NR == $idx {printf \"%s\n\", \$1}")
+hyprctl dispatch "hl.dsp.window.tag({ tag = 'shader/$name'})"
+dunst "Applied shader $file"
+
--- a/modules/desktop/scripts/toggle_focus_floating.sh
+++ b/modules/desktop/scripts/toggle_focus_floating.sh
@@ -0,0 +1,14 @@
+#!/usr/bin/env bash
+
+# toggles focus between floating and tiled windows.
+
+# get floating state of active window
+floating=$(hyprctl activewindow -j | jq ".floating")
+
+if [ "$floating" = "true" ]; then
+  # focus tiled
+  hyprctl dispatch "hl.dsp.window.cycle_next({ tiled = true })"
+else
+  # focus floating
+  hyprctl dispatch "hl.dsp.window.cycle_next({ floating = true })"
+fi
--- a/modules/desktop/scripts/toggle_touchpad.sh
+++ b/modules/desktop/scripts/toggle_touchpad.sh
@@ -0,0 +1,28 @@
+#!/usr/bin/env bash
+
+touchpad="uniw0001:00-093a:0255-touchpad"
+statFile="/tmp/tpEnabled"
+
+if [ ! -f "$statFile" ]; then
+    echo "false" > "$statFile"
+fi
+
+current=$(cat "$statFile")
+
+if [[ "$current" = "true" ]]; then
+  newState="false"
+  msg="disabled"
+else
+  newState="true"
+  msg="enabled"
+fi
+
+hyprctl eval "hl.device({ name = \"$touchpad\", enabled = $newState})"
+echo "$newState" > "$statFile"
+
+dunstify -u low \
+  -a Touchpad \
+  -i ~/.icons/candy-icons/apps/scalable/cs-desktop.svg \
+  -r 365 \
+  -t 1000 \
+  "Touchpad $msg" 
--- a/modules/desktop/scripts/waybar.sh
+++ b/modules/desktop/scripts/waybar.sh
@@ -0,0 +1,16 @@
+#!/usr/bin/env nix-shell
+#! nix-shell -i bash --packages killall envsubst waybar 
+
+#kill old instance
+kill $(ps aux | grep '[w]aybar -c /tmp/waybar-config' | awk -F' ' '{print $2}')
+while pgrep -u $UID -x waybar > /dev/null; do
+  sleep 1; 
+  killall -q waybar
+  kill $(ps aux | grep '[w]aybar -c /tmp/waybar-config' | awk -F' ' '{print $2}')
+done
+
+IFS=$'\t\n'
+MONITOR=$(hyprctl monitors -j | jq -r '.[] | select(.x==0 and .y==0) | .name') envsubst < ~/.config/waybar/config > /tmp/waybar-config
+unset IFS
+
+waybar -c /tmp/waybar-config &
--- a/modules/desktop/shaders/crt.frag
+++ b/modules/desktop/shaders/crt.frag
@@ -0,0 +1,66 @@
+//modified version of [this shader](https://github.com/wessles/GLSL-CRT/blob/master/shader.frag)
+#version 300 es
+
+precision mediump float;
+in vec2 v_texcoord;
+uniform sampler2D tex;
+out vec4 FragColor;
+
+const vec3 VIB_RGB_BALANCE = vec3(1.0, 1.0, 1.0);
+const float VIB_VIBRANCE = 0.40;
+
+
+const vec3 VIB_coeffVibrance = VIB_RGB_BALANCE * -VIB_VIBRANCE;
+
+void main() {
+	vec2 tc = vec2(v_texcoord.x, v_texcoord.y);
+
+	// Distance from the center
+	float dx = abs(0.5-tc.x);
+	float dy = abs(0.5-tc.y);
+
+	// Square it to smooth the edges
+	dx *= dx;
+	dy *= dy;
+
+	tc.x -= 0.5;
+	tc.x *= 1.0 + (dy * 0.05);
+	tc.x += 0.5;
+
+	tc.y -= 0.5;
+	tc.y *= 1.0 + (dx * 0.18);
+	tc.y += 0.5;
+
+	// Get texel, and add in scanline if need be
+	vec4 cta = texture(tex, vec2(tc.x, tc.y));
+
+	cta.rgb += sin(tc.y * 1250.0) * 0.02;
+
+	// Cutoff
+	if(tc.y > 1.0 || tc.x < 0.0 || tc.x > 1.0 || tc.y < 0.0)
+		cta = vec4(0.0);
+
+
+    // RGB
+    vec3 color = vec3(cta[0], cta[1], cta[2]);
+
+
+    // vec3 VIB_coefLuma = vec3(0.333333, 0.333334, 0.333333); // was for `if VIB_LUMA == 1`
+    vec3 VIB_coefLuma = vec3(0.212656, 0.715158, 0.072186); // try both and see which one looks nicer.
+
+    float luma = dot(VIB_coefLuma, color);
+
+    float max_color = max(color[0], max(color[1], color[2]));
+    float min_color = min(color[0], min(color[1], color[2]));
+
+    float color_saturation = max_color - min_color;
+
+    vec3 p_col = vec3(vec3(vec3(vec3(sign(VIB_coeffVibrance) * color_saturation) - 1.0) * VIB_coeffVibrance) + 1.0);
+
+    cta[0] = mix(luma, color[0], p_col[0]);
+    cta[1] = mix(luma, color[1], p_col[1]);
+    cta[2] = mix(luma, color[2], p_col[2]);
+
+	// Apply
+	FragColor = cta;
+}
--- a/modules/desktop/shaders/dim.frag
+++ b/modules/desktop/shaders/dim.frag
@@ -0,0 +1,22 @@
+// blue light filter shader
+// values from https://reshade.me/forum/shader-discussion/3673-blue-light-filter-similar-to-f-lux
+#version 300 es
+
+precision mediump float;
+in vec2 v_texcoord;
+uniform sampler2D tex;
+out vec4 FragColor;
+
+void main() {
+
+    vec4 pixColor = texture(tex, v_texcoord);
+
+    // red
+    pixColor[0] *= 0.7;
+    // green
+    pixColor[1] *= 0.6;
+    // blue
+    pixColor[2] *= 0.5;
+
+    FragColor = pixColor;
+}
--- a/modules/desktop/shaders/grey.frag
+++ b/modules/desktop/shaders/grey.frag
@@ -0,0 +1,18 @@
+#version 300 es
+precision mediump float;
+in vec2 v_texcoord;
+uniform sampler2D tex;
+out vec4 FragColor;
+
+
+// Values obtained from: http://en.wikipedia.org/wiki/Grayscale#Luma_coding_in_video_systems
+vec3 LumaFactors = vec3(0.299, 0.587, 0.114);
+
+void main() {
+  vec4 c = texture(tex, v_texcoord);
+
+  // Desaturate to luma only
+  float luma = dot(vec3(c.r, c.g, c.b), LumaFactors);
+
+  FragColor = vec4(luma, luma, luma, c.a);
+}
--- a/modules/desktop/shaders/horror.frag
+++ b/modules/desktop/shaders/horror.frag
@@ -0,0 +1,31 @@
+#version 300 es
+
+precision mediump float;
+in vec2 v_texcoord;
+uniform sampler2D tex;
+out vec4 FragColor;
+
+uniform mediump float time;
+
+const float display_framerate = 60.0;
+const vec2 display_resolution = vec2(2520.0, 1680.0);
+
+const float gamma = 1.0;
+
+float rand(vec2 uv, float t) {
+  return fract(sin(dot(uv, vec2(1225.6548, 321.8942))) * 4251.4865 + t);
+}
+
+float Sigmoid(float x) { return 1.0 / (1.0 + (exp(-(x - 0.5) * 14.0))); }
+
+void main() {
+  vec4 color = texture(tex, v_texcoord);
+
+  color = vec4(Sigmoid(color.r), Sigmoid(color.g), Sigmoid(color.b), 1.0);
+
+  color = pow(color, vec4(gamma));
+
+  color.a = 1.0;
+
+  FragColor = color;
+}
--- a/modules/desktop/shaders/invert.frag
+++ b/modules/desktop/shaders/invert.frag
@@ -0,0 +1,11 @@
+#version 300 es
+precision mediump float;
+in vec2 v_texcoord;
+uniform sampler2D tex;
+out vec4 FragColor;
+
+void main() {
+    vec4 pixColor = texture(tex, v_texcoord);
+    pixColor.rgb = 1.0 - pixColor.rgb;
+    FragColor = pixColor;
+}
--- a/modules/desktop/shaders/noblue.frag
+++ b/modules/desktop/shaders/noblue.frag
@@ -0,0 +1,23 @@
+#version 300 es
+precision mediump float;
+in vec2 v_texcoord;
+uniform sampler2D tex;
+out vec4 FragColor;
+
+
+// Values obtained from: http://en.wikipedia.org/wiki/Grayscale#Luma_coding_in_video_systems
+vec3 LumaFactors = vec3(0.299, 0.587, 0.114);
+
+void main() {
+  vec4 c = texture(tex, v_texcoord);
+
+  // average brightness
+  float luma = dot(vec3(c.r, c.g, c.b), LumaFactors);
+
+  if (c.r < c.g) {
+    FragColor = vec4(luma, c.g, luma, c.a);
+  } else {
+    FragColor = vec4(c.r, luma, luma, c.a);
+  }
+  // FragColor = vec4(c.r, c.g, luma, c.a);
+}
--- a/modules/desktop/shaders/nogreen.frag
+++ b/modules/desktop/shaders/nogreen.frag
@@ -0,0 +1,23 @@
+#version 300 es
+precision mediump float;
+in vec2 v_texcoord;
+uniform sampler2D tex;
+out vec4 FragColor;
+
+
+// Values obtained from: http://en.wikipedia.org/wiki/Grayscale#Luma_coding_in_video_systems
+vec3 LumaFactors = vec3(0.299, 0.587, 0.114);
+
+void main() {
+  vec4 c = texture(tex, v_texcoord);
+
+  // average brightness
+  float luma = dot(vec3(c.r, c.g, c.b), LumaFactors);
+
+  if (c.r < c.b) {
+    FragColor = vec4(luma, luma, c.b, c.a);
+  } else {
+    FragColor = vec4(c.r, luma, luma, c.a);
+  }
+  // FragColor = vec4(c.r, luma, c.b, c.a);
+}
--- a/modules/desktop/shaders/nored.frag
+++ b/modules/desktop/shaders/nored.frag
@@ -0,0 +1,23 @@
+#version 300 es
+precision mediump float;
+in vec2 v_texcoord;
+uniform sampler2D tex;
+out vec4 FragColor;
+
+
+// Values obtained from: http://en.wikipedia.org/wiki/Grayscale#Luma_coding_in_video_systems
+vec3 LumaFactors = vec3(0.299, 0.587, 0.114);
+
+void main() {
+  vec4 c = texture(tex, v_texcoord);
+
+  // average brightness
+  float luma = dot(vec3(c.r, c.g, c.b), LumaFactors);
+
+  if (c.g < c.b) {
+    FragColor = vec4(luma, luma, c.b, c.a);
+  } else {
+    FragColor = vec4(luma, c.g, luma, c.a);
+  }
+  // FragColor = vec4(luma, c.g, c.b, c.a);
+}
--- a/modules/desktop/shaders/rainbow.frag
+++ b/modules/desktop/shaders/rainbow.frag
@@ -0,0 +1,25 @@
+//modified version of [this shader](https://github.com/wessles/GLSL-CRT/blob/master/shader.frag)
+#version 300 es
+
+precision mediump float;
+in vec2 v_texcoord;
+uniform sampler2D tex;
+out vec4 FragColor;
+
+const float scaleFactor = 0.7;
+
+float clamp(float x, float min, float max) {
+  if (x > max) return max;
+  if (x < min) return min;
+  return x;
+}
+
+// [0,1]
+void main() {
+	vec4 cta = texture(tex, v_texcoord);
+
+  // cta += vec4(cos(v_texcoord.x)/4., sin(v_texcoord.y)/4., 0., 1.);
+  cta += vec4(cos(v_texcoord.x)/4., cos(v_texcoord.y)/8., sin(v_texcoord.y)/4., 1.);
+
+	FragColor = vec4(clamp(cta.x, 0., 1.), clamp(cta.y, 0., 1.), clamp(cta.z, 0., 1.), clamp(cta.w, 0., 1.));
+}
--- a/modules/desktop/shaders/rbinvert.frag
+++ b/modules/desktop/shaders/rbinvert.frag
@@ -0,0 +1,14 @@
+//modified version of [this shader](https://github.com/wessles/GLSL-CRT/blob/master/shader.frag)
+#version 300 es
+
+precision mediump float;
+in vec2 v_texcoord;
+uniform sampler2D tex;
+out vec4 FragColor;
+
+
+// [0,1]
+void main() {
+	vec4 cta = texture(tex, v_texcoord);
+  FragColor = vec4(cta.z, cta.y, cta.x, cta.a);
+}