feat: crt/vignette/chromatic-aberration/pixelate shader + dynamischer F10-cycle

config/hypr/hyprland.conf

@@ -349,6 +349,7 @@ bind = , F6, exec, ~/.config/hypr/scripts/hyprsunset-toggle.sh
 bind = , F7, exec, hyprshade toggle ~/.config/hypr/shaders/vibrance.glsl
 bind = , F8, exec, hyprshade toggle ~/.config/hypr/shaders/grayscale.glsl
 bind = , F9, exec, hyprshade toggle ~/.config/hypr/shaders/invert-colors.glsl
+bind = , F10, exec, ~/.config/hypr/scripts/shader-cycle.sh
 
 # Touchpad ein/ausschalten (Fn+F7 = Ctrl+Super+F24 laut Firmware)
 bind = CTRL SUPER, F24, exec, /home/tekki/.config/hypr/scripts/touchpad-toggle.sh

config/hypr/scripts/shader-cycle.sh

@@ -0,0 +1,21 @@
+#!/bin/bash
+SHADER_DIR="$HOME/.config/hypr/shaders"
+
+mapfile -t SHADERS < <(find "$SHADER_DIR" -name "*.glsl" | sort)
+
+if [[ ${#SHADERS[@]} -eq 0 ]]; then
+    exit 0
+fi
+
+CURRENT=$(hyprctl getoption decoration:screen_shader | grep "str:" | awk '{print $2}' | tr -d '"')
+
+INDEX=-1
+for i in "${!SHADERS[@]}"; do
+    if [[ "${SHADERS[$i]}" == "$CURRENT" ]]; then
+        INDEX=$i
+        break
+    fi
+done
+
+NEXT=$(( (INDEX + 1) % ${#SHADERS[@]} ))
+hyprshade on "${SHADERS[$NEXT]}"

config/hypr/shaders/chromatic-aberration.glsl

@@ -0,0 +1,17 @@
+#version 300 es
+precision highp float;
+
+in vec2 v_texcoord;
+uniform sampler2D tex;
+out vec4 fragColor;
+
+void main() {
+    float offset = 0.004;
+
+    float r = texture(tex, v_texcoord + vec2( offset, 0.0)).r;
+    float g = texture(tex, v_texcoord                   ).g;
+    float b = texture(tex, v_texcoord - vec2( offset, 0.0)).b;
+    float a = texture(tex, v_texcoord).a;
+
+    fragColor = vec4(r, g, b, a);
+}

config/hypr/shaders/crt.glsl

@@ -0,0 +1,20 @@
+#version 300 es
+precision highp float;
+
+in vec2 v_texcoord;
+uniform sampler2D tex;
+out vec4 fragColor;
+
+void main() {
+    vec4 c = texture(tex, v_texcoord);
+
+    // Scanlines: jede zweite Zeile leicht abdunkeln
+    float scanline = mod(floor(v_texcoord.y * 1000.0), 2.0);
+    c.rgb *= 1.0 - scanline * 0.25;
+
+    // Leichte Vignette für den Röhren-Look
+    vec2 uv = v_texcoord - 0.5;
+    c.rgb *= 1.0 - dot(uv, uv) * 1.2;
+
+    fragColor = c;
+}

config/hypr/shaders/pixelate.glsl

@@ -0,0 +1,12 @@
+#version 300 es
+precision highp float;
+
+in vec2 v_texcoord;
+uniform sampler2D tex;
+out vec4 fragColor;
+
+void main() {
+    float pixelSize = 0.005;
+    vec2 uv = floor(v_texcoord / pixelSize) * pixelSize;
+    fragColor = texture(tex, uv);
+}

config/hypr/shaders/vignette.glsl

@@ -0,0 +1,16 @@
+#version 300 es
+precision highp float;
+
+in vec2 v_texcoord;
+uniform sampler2D tex;
+out vec4 fragColor;
+
+void main() {
+    vec4 c = texture(tex, v_texcoord);
+
+    vec2 uv = v_texcoord - 0.5;
+    float vignette = 1.0 - dot(uv, uv) * 2.2;
+    c.rgb *= clamp(vignette, 0.0, 1.0);
+
+    fragColor = c;
+}

config/hypr/shortcuts.md

@@ -50,3 +50,4 @@
 | `F7` | Vibrance an/aus (Farben satter) |
 | `F8` | Graustufen an/aus |
 | `F9` | Farben invertieren an/aus |
+| `F10` | Shader durchschalten (alle .glsl aus ~/.config/hypr/shaders/) |