1 files changed, 9 insertions, 4 deletions
diff --git a/src/shader.frag b/src/shader.frag
index 3e80e21..c29a640 100644
--- a/src/shader.frag
+++ b/src/shader.frag
@@ -55,10 +55,15 @@ float fbm(vec2 p) {
 }
 
 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);
+  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);
+  if (mod(gl_FragCoord.x, 20) > 19 || mod(gl_FragCoord.y, 20) > 19) {
+    outColor = vec4(0,0,0, 1);
+  } else {
+    outColor = vec4(n, n * 0.5, 0.0, 1.0);
+  }
 }
 
 // void main() {