From 64617ea2c46d13cd2f72df72fcd426d2fc561bff Mon Sep 17 00:00:00 2001
From: gramanas <anastasis.gramm2@gmail.com>
Date: Sat, 1 Jun 2024 01:47:10 +0300
Subject: multisample

---
 src/shader.frag | 80 ++++++++++++++++++++++++++++-----------------------------
 1 file changed, 40 insertions(+), 40 deletions(-)

(limited to 'src/shader.frag')

diff --git a/src/shader.frag b/src/shader.frag
index 1818cc8..3e80e21 100644
--- a/src/shader.frag
+++ b/src/shader.frag
@@ -16,50 +16,50 @@ layout(binding = 0) uniform UniformBufferObject {
   float dt;
 } ubo;
 
-void main() {
-  // float pulse = sin(ubo.time * .2) * .5 + .5;
-  // outColor = vec4(fragColor * texture(texSampler, fragTexCoord).rgb * pulse, 1.0);
-  //outColor = texture(texSampler, fragTexCoord);
-  outColor = vec4(fragColor, 1);
-//   float repeat = 10;
-//   float f = mod(ubo.time, repeat);
-//   if (f < repeat / 2) {
-//     outColor = vec4(fragColor * radians(f) ,1);
-//   } else {
-//     outColor = vec4(fragColor * radians(1 - f) ,1);
-//   }
-//   //outColor = (vec4(1) * ubo.model + vec4(1)) * vec4(texture(texSampler, fragTexCoord).rgb * fragColor, 1.0);
-}
-
-// float noise(vec2 p) {
-//     return fract(sin(dot(p, vec2(12.9898, 78.233))) * 43758.5453);
+// void main() {
+//   // float pulse = sin(ubo.time * .2) * .5 + .5;
+//   // outColor = vec4(fragColor * texture(texSampler, fragTexCoord).rgb * pulse, 1.0);
+//   //outColor = texture(texSampler, fragTexCoord);
+//   outColor = vec4(fragColor, 1);
+// //   float repeat = 10;
+// //   float f = mod(ubo.time, repeat);
+// //   if (f < repeat / 2) {
+// //     outColor = vec4(fragColor * radians(f) ,1);
+// //   } else {
+// //     outColor = vec4(fragColor * radians(1 - f) ,1);
+// //   }
+// //   //outColor = (vec4(1) * ubo.model + vec4(1)) * vec4(texture(texSampler, fragTexCoord).rgb * fragColor, 1.0);
 // }
 
-// float smoothNoise(vec2 p) {
-//     vec2 i = floor(p);
-//     vec2 f = fract(p);
-//     vec2 u = f * f * (3.0 - 2.0 * f);
-//     return mix(mix(noise(i + vec2(0.0, 0.0)), noise(i + vec2(1.0, 0.0)), u.x),
-//                mix(noise(i + vec2(0.0, 1.0)), noise(i + vec2(1.0, 1.0)), u.x), u.y);
-// }
+float noise(vec2 p) {
+    return fract(sin(dot(p, vec2(12.9898, 78.233))) * 43758.5453);
+}
 
-// float fbm(vec2 p) {
-//     float value = 0.0;
-//     float amplitude = 0.5;
-//     for (int i = 0; i < 6; i++) {
-//         value += amplitude * smoothNoise(p);
-//         p *= 2.0;
-//         amplitude *= 0.5;
-//     }
-//     return value;
-// }
+float smoothNoise(vec2 p) {
+    vec2 i = floor(p);
+    vec2 f = fract(p);
+    vec2 u = f * f * (3.0 - 2.0 * f);
+    return mix(mix(noise(i + vec2(0.0, 0.0)), noise(i + vec2(1.0, 0.0)), u.x),
+               mix(noise(i + vec2(0.0, 1.0)), noise(i + vec2(1.0, 1.0)), u.x), u.y);
+}
 
-// void main() {
-//     vec2 uv = gl_FragCoord.xy / ubo.resolution.xy;
-//     vec2 p = uv * 2.0 - vec2(1.0);
-//     float n = fbm(p * 5.0 - vec2(0.0, ubo.time * 2.0));
-//     outColor = vec4(n, n * 0.5, 0.0, 1.0) * vec4(texture(texSampler, fragTexCoord).rgb, 1.0);
-// }
+float fbm(vec2 p) {
+    float value = 0.0;
+    float amplitude = 0.5;
+    for (int i = 0; i < 6; i++) {
+        value += amplitude * smoothNoise(p);
+        p *= 2.0;
+        amplitude *= 0.5;
+    }
+    return value;
+}
+
+void main() {
+    vec2 uv = gl_FragCoord.xy / ubo.resolution.xy;
+    vec2 p = uv * 2.0 - vec2(1.0);
+    float n = fbm(p * 5.0 - vec2(0.0, ubo.time * 2.0));
+    outColor = vec4(n, n * 0.5, 0.0, 1.0) * vec4(texture(texSampler, fragTexCoord).rgb, 1.0);
+}
 
 // void main() {
 
-- 
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