1 files changed, 70 insertions, 3 deletions
diff --git a/src/shader.frag b/src/shader.frag
index 3f76290..075c2ae 100644
--- a/src/shader.frag
+++ b/src/shader.frag
@@ -12,10 +12,77 @@ layout(binding = 0) uniform UniformBufferObject {
   mat4 view;
   mat4 proj;
   vec2 resolution;
+  float time;
+  float dt;
 } ubo;
 
 void main() {
-  //outColor = vec4(fragColor * texture(texSampler, fragTexCoord).rgb, 1.0);
-  outColor = texture(texSampler, fragTexCoord);
-  //outColor = vec4(fragColor ,1);
+  float pulse = sin(ubo.time * .2) * .5 + .5;
+  outColor = vec4(fragColor * texture(texSampler, fragTexCoord).rgb * pulse, 1.0);
+  //outColor = texture(texSampler, fragTexCoord);
+//   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);
+// }
+
+// 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 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() {
+
+//     // Calculate a pulsating factor based on sine wave
+//     float pulse = sin(ubo.time * 2.0) * 0.5 + 0.5;
+    
+//     // Set the color using the pulse factor
+//     outColor = vec4(pulse, 0.0, 1.0 - pulse, .5);
+// }
+
+// void main() {
+//     vec2 uv = gl_FragCoord.xy / ubo.resolution;
+//     vec2 center = uv - 0.5;
+    
+//     float angle = ubo.time;
+//     float cosA = cos(angle);
+//     float sinA = sin(angle);
+    
+//     vec2 rotated = vec2(
+//         center.x * cosA - center.y * sinA,
+//         center.x * sinA + center.y * cosA
+//     );
+    
+//     float pattern = step(0.5, mod(rotated.x * 10.0, 1.0)) * step(0.5, mod(rotated.y * 10.0, 1.0));
+    
+//     outColor = vec4(vec3(pattern), 1.0);
+// }