ags steal

desktops/hyprland/hypr/shaders/bluefilter.frag

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+// vim: set ft=glsl:
+// blue light filter shader
+// values from https://reshade.me/forum/shader-discussion/3673-blue-light-filter-similar-to-f-lux
+
+precision mediump float;
+varying vec2 v_texcoord;
+uniform sampler2D tex;
+
+void main() {
+
+    vec4 pixColor = texture2D(tex, v_texcoord);
+
+    // green
+    pixColor[1] *= 0.855;
+
+    // blue
+    pixColor[2] *= 0.725;
+
+    gl_FragColor = pixColor;
+}

desktops/hyprland/hypr/shaders/blur.frag

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+precision mediump float;
+varying vec2 v_texcoord; // is in 0-1
+uniform sampler2D tex;
+uniform float alpha;
+
+uniform vec2 topLeft;
+uniform vec2 fullSize;
+uniform float radius;
+
+uniform int discardOpaque;
+uniform int discardAlpha;
+uniform float discardAlphaValue;
+
+uniform int applyTint;
+uniform vec3 tint;
+
+uniform int primitiveMultisample;
+
+void main() {
+
+    vec4 pixColor = texture2D(tex, v_texcoord);
+
+    if (discardOpaque == 1 && pixColor[3] * alpha == 1.0)
+	    discard;
+    
+    if (discardAlpha == 1 && pixColor[3] <= discardAlphaValue)
+        discard;
+
+    if (applyTint == 1) {
+	    pixColor[0] = pixColor[0] * tint[0];
+	    pixColor[1] = pixColor[1] * tint[1];
+	    pixColor[2] = pixColor[2] * tint[2];
+    }
+
+    )#" +
+    ROUNDED_SHADER_FUNC("pixColor") + R"#(
+
+    gl_FragColor = pixColor * alpha;
+}

desktops/hyprland/hypr/shaders/chromatic_abberation.frag

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+// vim: set ft=glsl:
+
+precision highp float;
+varying highp vec2 v_texcoord;
+uniform highp sampler2D tex;
+
+#define STRENGTH 0.0027
+
+void main() {
+    vec2 center = vec2(0.5, 0.5);
+    vec2 offset = (v_texcoord - center) * STRENGTH;
+
+    float rSquared = dot(offset, offset);
+    float distortion = 1.0 + 1.0 * rSquared;
+    vec2 distortedOffset = offset * distortion;
+
+    vec2 redOffset = vec2(distortedOffset.x, distortedOffset.y);
+    vec2 blueOffset = vec2(distortedOffset.x, distortedOffset.y);
+
+    vec4 redColor = texture2D(tex, v_texcoord + redOffset);
+    vec4 blueColor = texture2D(tex, v_texcoord + blueOffset);
+
+    gl_FragColor = vec4(redColor.r, texture2D(tex, v_texcoord).g, blueColor.b, 1.0);
+}

desktops/hyprland/hypr/shaders/crt.frag

@@ -0,0 +1,511 @@
+#version 100
+precision highp float;
+varying highp vec2 v_texcoord;
+varying highp vec3 v_pos;
+uniform highp sampler2D tex;
+uniform lowp float time;
+
+#define BORDER_COLOR vec4(vec3(0.0, 0.0, 0.0), 1.0) // black border
+#define BORDER_RADIUS 1.0 // larger vignette radius
+#define BORDER_SIZE 0.01 // small border size
+#define CHROMATIC_ABERRATION_STRENGTH 0.00
+#define DENOISE_INTENSITY 0.0001 //
+#define DISTORTION_AMOUNT 0.00 // moderate distortion amount
+#define HDR_BLOOM 0.75 // bloom intensity
+#define HDR_BRIGHTNESS 0.011 // brightness
+#define HDR_CONTRAST 0.011 // contrast
+#define HDR_SATURATION 1.0// saturation
+#define LENS_DISTORTION_AMOUNT 0.0
+#define NOISE_THRESHOLD 0.0001
+#define PHOSPHOR_BLUR_AMOUNT 0.77 // Amount of blur for phosphor glow
+#define PHOSPHOR_GLOW_AMOUNT 0.77 // Amount of phosphor glow
+#define SAMPLING_RADIUS 0.0001
+#define SCANLINE_FREQUENCY 540.0
+#define SCANLINE_THICKNESS 0.0507
+#define SCANLINE_TIME time * 471.24
+#define SHARPNESS 0.25
+#define SUPERSAMPLING_SAMPLES 16.0
+#define VIGNETTE_RADIUS 0.0 // larger vignette radius
+#define PI 3.14159265359
+#define TWOPI 6.28318530718
+
+vec2 applyBarrelDistortion(vec2 coord, float amt) {
+    vec2 p = coord.xy / vec2(1.0);
+    vec2 v = p * 2.0 - vec2(1.0);
+    float r = dot(v, v);
+    float k = 1.0 + pow(r, 2.0) * pow(amt, 2.0);
+    vec2 result = v * k;
+    return vec2(0.5, 0.5) + 0.5 * result.xy;
+}
+
+vec4 applyColorCorrection(vec4 color) {
+    color.rgb *= vec3(1.0, 0.79, 0.89);
+    return vec4(color.rgb, 1.0);
+}
+
+vec4 applyBorder(vec2 tc, vec4 color, float borderSize, vec4 borderColor) {
+    float dist_x = min(tc.x, 1.0 - tc.x);
+    float dist_y = min(tc.y, 1.0 - tc.y);
+    float dist = min(dist_x, dist_y) * -1.0;
+    float border = smoothstep(borderSize, 0.0, dist);
+    border += smoothstep(borderSize, 0.0, dist);
+    return mix(color, borderColor, border);
+}
+
+vec4 applyFakeHDR(vec4 color, float brightness, float contrast, float saturation, float bloom) {
+    color.rgb = (color.rgb - vec3(0.5)) * exp2(brightness) + vec3(0.5);
+    vec3 crtfactor = vec3(1.05, 0.92, 1.0);
+    color.rgb = pow(color.rgb, crtfactor);
+    // // NTSC
+    // vec3 lumCoeff = vec3(0.2125, 0.7154, 0.0721);
+
+    // // BT.709
+    // vec3 lumCoeff = vec3(0.299, 0.587, 0.114);
+
+    // BT.2020
+    vec3 lumCoeff = vec3(0.2627, 0.6780, 0.0593);
+
+    // // Warm NTSC
+    // vec3 lumCoeff = vec3(0.2125, 0.7010, 0.0865);
+
+    float luminance = dot(color.rgb, lumCoeff);
+    luminance = pow(luminance, 2.2);
+    color.rgb = mix(vec3(luminance), color.rgb, saturation);
+    color.rgb = mix(color.rgb, vec3(1.0), pow(max(0.0, luminance - 1.0 + bloom), 4.0));
+    return color;
+}
+
+vec4 applyVignette(vec4 color) {
+    vec2 center = vec2(0.5, 0.5); // center of screen
+    float radius = VIGNETTE_RADIUS; // radius of vignette effect
+    float softness = 1.0; // softness of vignette effect
+    float intensity = 0.7; // intensity of vignette effect
+    vec2 offset = v_texcoord - center; // offset from center of screen
+    float distance = length(offset); // distance from center of screen
+    float alpha = smoothstep(radius, radius - radius * softness, distance) * intensity; // calculate alpha value for vignette effect
+    return mix(vec4(0.0, 0.0, 0.0, alpha), color, alpha); // mix black with color using calculated alpha value
+}
+
+vec4 applyPhosphorGlow(vec2 tc, vec4 color, sampler2D tex) {
+    // Calculate average color value of the texture
+    vec4 texelColor = color;
+    float averageColor = (texelColor.r + texelColor.g + texelColor.b) / 3.0;
+
+    // Determine brightness-dependent color factor
+    float factor = mix(
+        mix(0.09,
+            mix(0.005, 0.0075, (averageColor - 0.1) / 0.1),
+            step(0.01, averageColor)), 0.0005,
+        step(0.02, averageColor));
+    // Apply phosphor glow effect
+    vec4 sum = vec4(0.0);
+    vec4 pixels[9];
+    pixels[0] = texture2D(tex, tc - vec2(0.001, 0.001));
+    pixels[1] = texture2D(tex, tc - vec2(0.001, 0.0));
+    pixels[2] = texture2D(tex, tc - vec2(0.001, -0.001));
+    pixels[3] = texture2D(tex, tc - vec2(0.0, 0.001));
+    pixels[4] = texture2D(tex, tc);
+    pixels[5] = texture2D(tex, tc + vec2(0.001, 0.001));
+    pixels[6] = texture2D(tex, tc + vec2(0.001, 0.0));
+    pixels[7] = texture2D(tex, tc + vec2(0.001, -0.001));
+    pixels[8] = texture2D(tex, tc + vec2(0.0, 0.001));
+
+// Perform operations on input pixels in parallel
+    sum = pixels[0]
+        + pixels[1]
+        + pixels[2]
+        + pixels[3]
+        + pixels[4]
+        + pixels[5]
+        + pixels[6]
+        + pixels[7]
+        + pixels[8];
+    sum /= 9.0;
+    sum += texture2D(tex, tc - vec2(0.01, 0.01)) * 0.001;
+    sum += texture2D(tex, tc - vec2(0.0, 0.01)) * 0.001;
+    sum += texture2D(tex, tc - vec2(-0.01, 0.01)) * 0.001;
+    sum += texture2D(tex, tc - vec2(0.01, 0.0)) * 0.001;
+    sum += color * PHOSPHOR_BLUR_AMOUNT;
+    sum += texture2D(tex, tc - vec2(-0.01, 0.0)) * 0.001;
+    sum += texture2D(tex, tc - vec2(0.01, -0.01)) * 0.001;
+    sum += texture2D(tex, tc - vec2(0.0, -0.01)) * 0.001;
+    sum += texture2D(tex, tc - vec2(-0.01, -0.01)) * 0.001;
+    sum *= PHOSPHOR_GLOW_AMOUNT;
+
+    // Initialize sum_sum_factor to zero
+    vec4 sum_sum_factor = vec4(0.0);
+    // Compute sum_j for i = -1
+    vec4 sum_j = vec4(0.0);
+    sum_j += texture2D(tex, tc + vec2(-1, -1) * 0.01);
+    sum_j += texture2D(tex, tc + vec2(0, -1) * 0.01);
+    sum_j += texture2D(tex, tc + vec2(1, -1) * 0.01);
+    sum_j += texture2D(tex, tc + vec2(-1, 0) * 0.01);
+    sum_j += texture2D(tex, tc + vec2(0, 0) * 0.01);
+    sum_j += texture2D(tex, tc + vec2(1, 0) * 0.01);
+    sum_j += texture2D(tex, tc + vec2(-1, 1) * 0.01);
+    sum_j += texture2D(tex, tc + vec2(0, 1) * 0.01);
+    sum_j += texture2D(tex, tc + vec2(1, 1) * 0.01);
+    sum_sum_factor += sum_j * vec4(0.011);
+
+    // Compute sum_j for i = 0
+    sum_j = vec4(0.0);
+    sum_j += texture2D(tex, tc + vec2(-1, 0) * 0.01);
+    sum_j += texture2D(tex, tc + vec2(0, 0) * 0.01);
+    sum_j += texture2D(tex, tc + vec2(1, 0) * 0.01);
+    sum_j += texture2D(tex, tc + vec2(-1, 1) * 0.01);
+    sum_j += texture2D(tex, tc + vec2(0, 1) * 0.01);
+    sum_j += texture2D(tex, tc + vec2(1, 1) * 0.01);
+    sum_sum_factor += sum_j * vec4(0.011);
+
+    // Compute sum_j for i = 1
+    sum_j = vec4(0.0);
+    sum_j += texture2D(tex, tc + vec2(-1, 0) * 0.01);
+    sum_j += texture2D(tex, tc + vec2(0, 1) * 0.01);
+    sum_j += texture2D(tex, tc + vec2(1, 0) * 0.01);
+    sum_j += texture2D(tex, tc + vec2(-1, 1) * 0.01);
+    sum_j += texture2D(tex, tc + vec2(0, 1) * 0.01);
+    sum_j += texture2D(tex, tc + vec2(1, 1) * 0.01);
+    sum_sum_factor += sum_j * vec4(0.011);
+    color += mix(sum_sum_factor * sum_sum_factor * vec4(factor), sum, 0.5);
+    return color;
+}
+
+vec4 applyAdaptiveSharpen(vec2 tc, vec4 color, sampler2D tex) {
+    vec4 color_tl = texture2D(tex, tc + vec2(-1.0, -1.0) * 0.5 / 2160.0);
+    vec4 color_tr = texture2D(tex, tc + vec2(1.0, -1.0) * 0.5 / 2160.0);
+    vec4 color_bl = texture2D(tex, tc + vec2(-1.0, 1.0) * 0.5 / 2160.0);
+    vec4 color_br = texture2D(tex, tc + vec2(1.0, 1.0) * 0.5 / 2160.0);
+    float sharpness = SHARPNESS;
+    vec3 color_no_alpha = color.rgb;
+    vec3 color_tl_no_alpha = color_tl.rgb;
+    vec3 color_tr_no_alpha = color_tr.rgb;
+    vec3 color_bl_no_alpha = color_bl.rgb;
+    vec3 color_br_no_alpha = color_br.rgb;
+    float delta = (dot(color_no_alpha, vec3(0.333333)) + dot(color_tl_no_alpha, vec3(0.333333)) + dot(color_tr_no_alpha, vec3(0.333333)) + dot(color_bl_no_alpha, vec3(0.333333)) + dot(color_br_no_alpha, vec3(0.333333))) * 0.2 - dot(color_no_alpha, vec3(0.333333));
+    vec3 sharp_color_no_alpha = color_no_alpha + min(vec3(0.0), vec3(delta * sharpness));
+    vec4 sharp_color = vec4(sharp_color_no_alpha, color.a);
+    return sharp_color;
+}
+
+vec4 applyScanlines(vec2 tc, vec4 color) {
+    float scanline = (cos(tc.y * SCANLINE_FREQUENCY + SCANLINE_TIME) *
+                      sin(tc.y * SCANLINE_FREQUENCY + SCANLINE_TIME)) * SCANLINE_THICKNESS;
+    float alpha = clamp(1.0 - abs(scanline), 0.0, 1.0);
+    return vec4(color.rgb * alpha, color.a);
+}
+
+vec4 applyChromaticAberration(vec2 uv, vec4 color) {
+    vec2 center = vec2(0.5, 0.5); // center of the screen
+    vec2 offset = (uv - center) * CHROMATIC_ABERRATION_STRENGTH; // calculate the offset from the center
+
+    // apply lens distortion
+    float rSquared = dot(offset, offset);
+    float distortion = 1.0 + LENS_DISTORTION_AMOUNT * rSquared;
+    vec2 distortedOffset = offset * distortion;
+
+    // apply chromatic aberration
+    vec2 redOffset = vec2(distortedOffset.x * 1.00, distortedOffset.y * 1.00);
+    vec2 blueOffset = vec2(distortedOffset.x * 1.00, distortedOffset.y * 1.00);
+
+    vec4 redColor = texture2D(tex, uv + redOffset);
+    vec4 blueColor = texture2D(tex, uv + blueOffset);
+
+    vec4 result = vec4(redColor.r, color.g, blueColor.b, color.a);
+
+    return result;
+}
+
+vec4 reduceGlare(vec4 color) {
+    // Calculate the intensity of the color by taking the average of the RGB components
+    float intensity = (color.r + color.g + color.b) / 3.0;
+    // Set the maximum intensity that can be considered for glare
+    float maxIntensity = 0.98;
+    // Use smoothstep to create a smooth transition from no glare to full glare
+    // based on the intensity of the color and the maximum intensity
+    float glareIntensity = smoothstep(maxIntensity - 0.02, maxIntensity, intensity);
+    // Set the amount of glare to apply to the color
+    float glareAmount = 0.02;
+    // Mix the original color with the reduced color that has glare applied to it
+    vec3 reducedColor = mix(color.rgb, vec3(glareIntensity), glareAmount);
+    // Return the reduced color with the original alpha value
+    return vec4(reducedColor, color.a);
+}
+
+// Apply a fake HDR effect to the input color.
+// Parameters:
+// - inputColor: the color to apply the effect to.
+// - brightness: the brightness of the image. Should be a value between 0 and 1.
+// - contrast: the contrast of the image. Should be a value between 0 and 1.
+// - saturation: the saturation of the image. Should be a value between 0 and 2.
+// - bloom: the intensity of the bloom effect. Should be a value between 0 and 1.
+vec4 applyFakeHDREffect(vec4 inputColor, float brightness, float contrast, float saturation, float bloom) {
+    const float minBrightness = 0.0;
+    const float maxBrightness = 1.0;
+    const float minContrast = 0.0;
+    const float maxContrast = 1.0;
+    const float minSaturation = 0.0;
+    const float maxSaturation = 2.0;
+    const float minBloom = 0.0;
+    const float maxBloom = 1.0;
+
+    // Check input parameters for validity
+    if (brightness < minBrightness || brightness > maxBrightness) {
+        return vec4(0.0, 0.0, 0.0, 1.0); // Return black with alpha of 1.0 to indicate error
+    }
+    if (contrast < minContrast || contrast > maxContrast) {
+        return vec4(0.0, 0.0, 0.0, 1.0);
+    }
+    if (saturation < minSaturation || saturation > maxSaturation) {
+        return vec4(0.0, 0.0, 0.0, 1.0);
+    }
+    if (bloom < minBloom || bloom > maxBloom) {
+        return vec4(0.0, 0.0, 0.0, 1.0);
+    }
+
+    // Apply brightness and contrast
+    vec3 color = inputColor.rgb;
+    color = (color - vec3(0.5)) * exp2(brightness * 10.0) + vec3(0.5);
+    color = mix(vec3(0.5), color, pow(contrast * 4.0 + 1.0, 2.0));
+
+    // // NTSC
+    // vec3 lumCoeff = vec3(0.2125, 0.7154, 0.0721);
+
+    // // BT.709
+    // vec3 lumCoeff = vec3(0.299, 0.587, 0.114);
+
+    // // BT.2020
+    // vec3 lumCoeff = vec3(0.2627, 0.6780, 0.0593);
+
+    // Warm NTSC
+    vec3 lumCoeff = vec3(0.2125, 0.7010, 0.0865);
+
+    // Apply saturation
+    float luminance = dot(color, lumCoeff);
+    vec3 grey = vec3(luminance);
+    color = mix(grey, color, saturation);
+
+    // Apply bloom effect
+    float threshold = 1.0 - bloom;
+    vec3 bloomColor = max(color - threshold, vec3(0.0));
+    bloomColor = pow(bloomColor, vec3(2.0));
+    bloomColor = mix(vec3(0.0), bloomColor, pow(min(luminance, threshold), 4.0));
+    color += bloomColor;
+
+    return vec4(color, inputColor.a);
+}
+
+vec4 bilateralFilter(sampler2D tex, vec2 uv, vec4 color, float sampleRadius, float noiseThreshold, float intensity) {
+    vec4 filteredColor = vec4(0.0);
+    float totalWeight = 0.0;
+
+    // Top-left pixel
+    vec4 sample = texture2D(tex, uv + vec2(-1.0, -1.0));
+    float dist = length(vec2(-1.0, -1.0));
+    float colorDist = length(sample - color);
+    float weight = exp(-0.5 * (dist * dist + colorDist * colorDist * intensity) / (sampleRadius * sampleRadius));
+    filteredColor += sample * weight;
+    totalWeight += weight;
+
+    // Top pixel
+    sample = texture2D(tex, uv + vec2(0.0, -1.0));
+    dist = length(vec2(0.0, -1.0));
+    colorDist = length(sample - color);
+    weight = exp(-0.5 * (dist * dist + colorDist * colorDist * intensity) / (sampleRadius * sampleRadius));
+    filteredColor += sample * weight;
+    totalWeight += weight;
+
+    // Top-right pixel
+    sample = texture2D(tex, uv + vec2(1.0, -1.0));
+    dist = length(vec2(1.0, -1.0));
+    colorDist = length(sample - color);
+    weight = exp(-0.5 * (dist * dist + colorDist * colorDist * intensity) / (sampleRadius * sampleRadius));
+    filteredColor += sample * weight;
+    totalWeight += weight;
+
+    // Left pixel
+    sample = texture2D(tex, uv + vec2(-1.0, 0.0));
+    dist = length(vec2(-1.0, 0.0));
+    colorDist = length(sample - color);
+    weight = exp(-0.5 * (dist * dist + colorDist * colorDist * intensity) / (sampleRadius * sampleRadius));
+    filteredColor += sample * weight;
+    totalWeight += weight;
+
+    // Center pixel
+    sample = texture2D(tex, uv);
+    dist = 0.0;
+    colorDist = length(sample - color);
+    weight = exp(-0.5 * (dist * dist + colorDist * colorDist * intensity) / (sampleRadius * sampleRadius));
+    filteredColor += sample * weight;
+    totalWeight += weight;
+
+    // Right pixel
+    sample = texture2D(tex, uv + vec2(1.0, 0.0));
+    dist = length(vec2(1.0, 0.0));
+    colorDist = length(sample - color);
+    weight = exp(-0.5 * (dist * dist + colorDist * colorDist * intensity) / (sampleRadius * sampleRadius));
+    filteredColor += sample * weight;
+    totalWeight += weight;
+
+    // Bottom-left pixel
+    sample = texture2D(tex, uv + vec2(-1.0, 1.0));
+    dist = length(vec2(-1.0, 1.0));
+    colorDist = length(sample - color);
+    weight = exp(-0.5 * (dist * dist + colorDist * colorDist * intensity) / (sampleRadius * sampleRadius));
+    filteredColor += sample * weight;
+    totalWeight += weight;
+
+// Bottom pixel
+    sample = texture2D(tex, uv + vec2(0.0, sampleRadius));
+    dist = length(vec2(0.0, sampleRadius));
+    colorDist = length(sample - color);
+    weight = exp(-0.5 * (dist * dist + colorDist * colorDist * intensity) / (sampleRadius * sampleRadius));
+    filteredColor += sample * weight;
+    totalWeight += weight;
+
+    filteredColor /= totalWeight;
+    return mix(color, filteredColor, step(noiseThreshold, length(filteredColor - color)));
+}
+
+vec4 supersample(sampler2D tex, vec2 uv, float sampleRadius, float noiseThreshold, float intensity) {
+    float radiusSq = sampleRadius * sampleRadius;
+    vec2 poissonDisk;
+    vec4 color = vec4(0.0);
+
+    float r1_0 = sqrt(0.0 / 16.0);
+    float r2_0 = fract(1.0 / 3.0);
+    float theta_0 = TWOPI * r2_0;
+    poissonDisk = vec2(r1_0 * cos(theta_0), r1_0 * sin(theta_0));
+    color += texture2D(tex, uv + poissonDisk * sampleRadius);
+
+    float r1_1 = sqrt(1.0 / 16.0);
+    float r2_1 = fract(2.0 / 3.0);
+    float theta_1 = TWOPI * r2_1;
+    poissonDisk = vec2(r1_1 * cos(theta_1), r1_1 * sin(theta_1));
+    color += texture2D(tex, uv + poissonDisk * sampleRadius);
+
+    float r1_2 = sqrt(2.0 / 16.0);
+    float r2_2 = fract(3.0 / 3.0);
+    float theta_2 = TWOPI * r2_2;
+    poissonDisk = vec2(r1_2 * cos(theta_2), r1_2 * sin(theta_2));
+    color += texture2D(tex, uv + poissonDisk * sampleRadius);
+
+    float r1_3 = sqrt(3.0 / 16.0);
+    float r2_3 = fract(4.0 / 3.0);
+    float theta_3 = TWOPI * r2_3;
+    poissonDisk = vec2(r1_3 * cos(theta_3), r1_3 * sin(theta_3));
+    color += texture2D(tex, uv + poissonDisk * sampleRadius);
+
+    float r1_4 = sqrt(4.0 / 16.0);
+    float r2_4 = fract(5.0 / 3.0);
+    float theta_4 = TWOPI * r2_4;
+    poissonDisk = vec2(r1_4 * cos(theta_4), r1_4 * sin(theta_4));
+    color += texture2D(tex, uv + poissonDisk * sampleRadius);
+
+    float r1_5 = sqrt(5.0 / 16.0);
+    float r2_5 = fract(6.0 / 3.0);
+    float theta_5 = TWOPI * r2_5;
+    poissonDisk = vec2(r1_5 * cos(theta_5), r1_5 * sin(theta_5));
+    color += texture2D(tex, uv + poissonDisk * sampleRadius);
+
+    float r1_6 = sqrt(6.0 / 16.0);
+    float r2_6 = fract(7.0 / 3.0);
+    float theta_6 = TWOPI * r2_6;
+    poissonDisk = vec2(r1_6 * cos(theta_6), r1_6 * sin(theta_6));
+    color += texture2D(tex, uv + poissonDisk * sampleRadius);
+
+    float r1_7 = sqrt(7.0 / 16.0);
+    float r2_7 = fract(8.0 / 3.0);
+    float theta_7 = TWOPI * r2_7;
+    poissonDisk = vec2(r1_7 * cos(theta_7), r1_7 * sin(theta_7));
+    color += texture2D(tex, uv + poissonDisk * sampleRadius);
+
+    float r1_8 = sqrt(8.0 / 16.0);
+    float r2_8 = fract(9.0 / 3.0);
+    float theta_8 = TWOPI * r2_8;
+    poissonDisk = vec2(r1_8 * cos(theta_8), r1_8 * sin(theta_8));
+    color += texture2D(tex, uv + poissonDisk * sampleRadius);
+
+    float r1_9 = sqrt(9.0 / 16.0);
+    float r2_9 = fract(10.0 / 3.0);
+    float theta_9 = TWOPI * r2_9;
+    poissonDisk = vec2(r1_9 * cos(theta_9), r1_9 * sin(theta_9));
+    color += texture2D(tex, uv + poissonDisk * sampleRadius);
+
+    float r1_10 = sqrt(10.0 / 16.0);
+    float r2_10 = fract(11.0 / 3.0);
+    float theta_10 = TWOPI * r2_10;
+    poissonDisk = vec2(r1_10 * cos(theta_10), r1_10 * sin(theta_10));
+    color += texture2D(tex, uv + poissonDisk * sampleRadius);
+
+    float r1_11 = sqrt(11.0 / 16.0);
+    float r2_11 = fract(12.0 / 3.0);
+    float theta_11 = TWOPI * r2_11;
+    poissonDisk = vec2(r1_11 * cos(theta_11), r1_11 * sin(theta_11));
+    color += texture2D(tex, uv + poissonDisk * sampleRadius);
+
+    float r1_12 = sqrt(12.0 / 16.0);
+    float r2_12 = fract(13.0 / 3.0);
+    float theta_12 = TWOPI * r2_12;
+    poissonDisk = vec2(r1_12 * cos(theta_12), r1_12 * sin(theta_12));
+    color += texture2D(tex, uv + poissonDisk * sampleRadius);
+
+    float r1_13 = sqrt(13.0 / 16.0);
+    float r2_13 = fract(14.0 / 3.0);
+    float theta_13 = TWOPI * r2_13;
+    poissonDisk = vec2(r1_13 * cos(theta_13), r1_13 * sin(theta_13));
+    color += texture2D(tex, uv + poissonDisk * sampleRadius);
+
+    float r1_14 = sqrt(14.0 / 16.0);
+    float r2_14 = fract(15.0 / 3.0);
+    float theta_14 = TWOPI * r2_14;
+    poissonDisk = vec2(r1_14 * cos(theta_14), r1_14 * sin(theta_14));
+    color += texture2D(tex, uv + poissonDisk * sampleRadius);
+
+    float r1_15 = sqrt(15.0 / 16.0);
+    float r2_15 = fract(16.0 / 3.0);
+    float theta_15 = TWOPI * r2_15;
+    poissonDisk = vec2(r1_15 * cos(theta_15), r1_15 * sin(theta_15));
+    color += texture2D(tex, uv + poissonDisk * sampleRadius);
+
+    return bilateralFilter(tex, uv, color, sampleRadius, noiseThreshold, intensity);
+}
+void main() {
+    vec2 tc_no_dist = v_texcoord;
+
+    vec2 tc = applyBarrelDistortion(tc_no_dist, DISTORTION_AMOUNT);
+
+    // [-1, 1]
+    vec2 tc_no_dist_symmetric = tc_no_dist * 2.0 - 1.0;
+
+    // [0,1]
+    vec2 tc_no_dist_normalized = (tc_no_dist_symmetric + 1.0) / 2.0;
+
+    // vec4 color = texture2D(tex, tc);
+    vec4 color = supersample(tex, tc, SAMPLING_RADIUS, NOISE_THRESHOLD, DENOISE_INTENSITY);
+
+    color = applyAdaptiveSharpen(tc, color, tex);
+
+    color = applyPhosphorGlow(tc, color, tex);
+
+    color = reduceGlare(color);
+
+    color = mix(applyFakeHDREffect(color, HDR_BRIGHTNESS, HDR_CONTRAST, HDR_SATURATION, HDR_BLOOM), color, 0.5);
+
+    color = applyColorCorrection(color);
+
+    color /= SUPERSAMPLING_SAMPLES;
+
+    color = mix(applyChromaticAberration(tc, color), color, 0.25);
+
+    color = mix(color, applyVignette(color), 0.37);
+
+    color = applyBorder(tc_no_dist_normalized, color, 1.0 - BORDER_SIZE * BORDER_RADIUS, BORDER_COLOR);
+
+    color = mix(applyBorder(tc, color, BORDER_SIZE, BORDER_COLOR), color, 0.05);
+
+    color = applyScanlines(tc, color);
+
+    gl_FragColor = color;
+    gl_FragColor.a = 1.0;
+}
+

desktops/hyprland/hypr/shaders/drugs.frag

@@ -0,0 +1,42 @@
+
+precision highp float;
+varying vec2 v_texcoord;
+uniform sampler2D tex;
+uniform float time;
+
+void warpco(inout vec2 tc) {
+    tc -= 0.5;
+    tc *= length(tc) * 2.0;
+    tc += 0.5;
+}
+
+float rand1d(float seed) {
+   return sin(seed*1454.0); 
+}
+
+float rand2d(vec2 co)
+{
+  return fract(sin(dot(co.xy, vec2(12.9898,78.233))) * 43758.5453);
+}
+
+vec3 rgb(in vec2 tc, float freq, float amp, inout vec4 centre) {
+    vec2 off = vec2(1.0/800.0, 0.0) * sin(tc.t * freq + time) * amp;
+    vec2 off2 = vec2(1.0/800.0, 0.0) * sin(tc.t * freq - time * 1.5) * amp;
+    centre = texture2D(tex, tc);
+    return vec3(texture2D(tex, tc-off).r, centre.g, texture2D(tex, tc+off2).b);
+}
+
+void main() {
+    // vec2 px = 1.0 / textureSize(tex, 0).st;
+    vec2 tc = v_texcoord;
+    warpco(tc);
+    tc = mix(v_texcoord, tc, sin(time * 2.0)*0.07);
+    tc.x += rand2d(floor(tc * 20.0 + floor(time * 2.5))) * 0.01;
+    tc.x += rand1d(floor(tc.x * 40.0)) * 0.005 * rand1d(time * 0.001);
+    tc.y += sin(tc.x + time) * 0.02;
+    vec4 centre;
+    vec3 bent = rgb(tc, 100.0, 5.0, centre);
+    vec3 col = mix(centre.rgb, bent, sin(time));
+    gl_FragColor = vec4(col, centre.a);
+    // gl_FragColor = vec4(texture2D(tex, v_texcoord));
+}

desktops/hyprland/hypr/shaders/extradark.frag

@@ -0,0 +1,21 @@
+// vim: set ft=glsl:
+// blue light filter shader
+// values from https://reshade.me/forum/shader-discussion/3673-blue-light-filter-similar-to-f-lux
+
+precision mediump float;
+varying vec2 v_texcoord;
+uniform sampler2D tex;
+
+void main() {
+
+    vec4 pixColor = texture2D(tex, v_texcoord);
+
+    // red
+    pixColor[0] *= 0.7;
+    // green
+    pixColor[1] *= 0.6;
+    // blue
+    pixColor[2] *= 0.5;
+
+    gl_FragColor = pixColor;
+}

desktops/hyprland/hypr/shaders/gaussian.frag

@@ -0,0 +1,31 @@
+//---------------------------------------------------------------------------
+// Fragment
+//---------------------------------------------------------------------------
+#version 420 core
+//---------------------------------------------------------------------------
+precision mediump float;
+in vec2 pos;                    // screen position <-1,+1>
+out vec4 gl_FragColor;          // fragment output color
+uniform sampler2D txr;          // texture to blur
+uniform float xs,ys;            // texture resolution
+uniform float r = 6.0;          // blur radius
+
+varying vec2 v_texcoord;
+uniform sampler2D tex;
+//---------------------------------------------------------------------------
+void main()
+    {
+    float x,y,xx,yy,rr=r*r,dx,dy,w,w0;
+    w0=0.3780/pow(r,1.975);
+    vec2 p;
+    vec4 pixColor = texture2D(tex, v_texcoord);
+    for (dx=1.0/xs,x=-r,p.x=0.5+(pos.x*0.5)+(x*dx);x<=r;x++,p.x+=dx){ xx=x*x;
+     for (dy=1.0/ys,y=-r,p.y=0.5+(pos.y*0.5)+(y*dy);y<=r;y++,p.y+=dy){ yy=y*y;
+      if (xx+yy<=rr)
+        {
+        w=w0*exp((-xx-yy)/(2.0*rr));
+        pixColor+=texture2D(txr,p)*w;
+        }}}
+    gl_FragColor = pixColor;
+    }
+//---------------------------------------------------------------------------

desktops/hyprland/hypr/shaders/motion-blur.frag

@@ -0,0 +1,28 @@
+// vim: set ft=glsl:
+
+precision mediump float;
+varying vec2 v_texcoord;
+uniform sampler2D tex;
+uniform float blurFactor;
+uniform vec2 resolution;
+
+const int numSamples = 120000;
+
+uniform sampler2D accumulator;
+
+void main() {
+    float blurFactor = 120000.0;
+
+    vec4 currentColor = texture2D(tex, v_texcoord);
+    vec4 prevColor = texture2D(accumulator, v_texcoord);
+
+    vec2 velocity = (v_texcoord - gl_FragCoord.xy / resolution) * 2.0;
+
+    vec4 colorDiff = currentColor - prevColor;
+
+    float motionBlur = length(velocity) * blurFactor;
+
+    vec4 finalColor = prevColor + colorDiff * 2.0;
+
+    gl_FragColor = finalColor;
+}

desktops/hyprland/hypr/shaders/nothing.frag

@@ -0,0 +1,14 @@
+// vim: set ft=glsl:
+// blue light filter shader
+// values from https://reshade.me/forum/shader-discussion/3673-blue-light-filter-similar-to-f-lux
+
+precision mediump float;
+varying vec2 v_texcoord;
+uniform sampler2D tex;
+
+void main() {
+
+    vec4 pixColor = texture2D(tex, v_texcoord);
+
+    gl_FragColor = pixColor;
+}

desktops/hyprland/hypr/shaders/solarized.frag

@@ -0,0 +1,41 @@
+// -*- mode:c -*-
+precision lowp float;
+varying vec2 v_texcoord;
+uniform sampler2D tex;
+
+float distanceSquared(vec3 pixColor, vec3 solarizedColor) {
+	vec3 distanceVector = pixColor - solarizedColor;
+	return dot(distanceVector, distanceVector);
+}
+
+void main() {
+	vec3 solarized[16];
+	solarized[0]  = vec3(0.,0.169,0.212);
+	solarized[1]  = vec3(0.027,0.212,0.259);
+	solarized[2]  = vec3(0.345,0.431,0.459);
+	solarized[3]  = vec3(0.396,0.482,0.514);
+	solarized[4]  = vec3(0.514,0.58,0.588);
+	solarized[5]  = vec3(0.576,0.631,0.631);
+	solarized[6]  = vec3(0.933,0.91,0.835);
+	solarized[7]  = vec3(0.992,0.965,0.89);
+	solarized[8]  = vec3(0.71,0.537,0.);
+	solarized[9]  = vec3(0.796,0.294,0.086);
+	solarized[10] = vec3(0.863,0.196,0.184);
+	solarized[11] = vec3(0.827,0.212,0.51);
+	solarized[12] = vec3(0.424,0.443,0.769);
+	solarized[13] = vec3(0.149,0.545,0.824);
+	solarized[14] = vec3(0.165,0.631,0.596);
+	solarized[15] = vec3(0.522,0.6,0.);
+
+	vec3 pixColor = vec3(texture2D(tex, v_texcoord));
+	int closest = 0;
+	float closestDistanceSquared = distanceSquared(pixColor, solarized[0]);
+	for (int i = 1; i < 15; i++) {
+		float newDistanceSquared = distanceSquared(pixColor, solarized[i]);
+		if (newDistanceSquared < closestDistanceSquared) {
+			closest = i;
+			closestDistanceSquared = newDistanceSquared;
+		}
+	}
+	gl_FragColor = vec4(solarized[closest], 1.);
+}

desktops/hyprland/hypr/shaders/vibrance.frag

@@ -0,0 +1,39 @@
+// vibrance for hyprland
+
+precision mediump float;
+varying vec2 v_texcoord;
+uniform sampler2D tex;
+
+// see https://github.com/CeeJayDK/SweetFX/blob/a792aee788c6203385a858ebdea82a77f81c67f0/Shaders/Vibrance.fx#L20-L30
+const vec3 VIB_RGB_BALANCE = vec3(1.0, 1.0, 1.0);
+const float VIB_VIBRANCE = 0.15;
+
+
+const vec3 VIB_coeffVibrance = VIB_RGB_BALANCE * -VIB_VIBRANCE;
+
+void main() {
+
+    vec4 pixColor = texture2D(tex, v_texcoord);
+
+    // RGB
+    vec3 color = vec3(pixColor[0], pixColor[1], pixColor[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);
+
+    pixColor[0] = mix(luma, color[0], p_col[0]);
+    pixColor[1] = mix(luma, color[1], p_col[1]);
+    pixColor[2] = mix(luma, color[2], p_col[2]);
+
+    gl_FragColor = pixColor;
+}