noise by gb channek

utils/material.ts

@@ -92,27 +92,20 @@ export const set_material = (scene: any, color: any, pattern: { pattern: pattern
 
         // Изменяем фрагментный шейдер
         shader.fragmentShader = `
-            varying vec2 vPosition;
             float random(float p) {
                 return fract(sin(p) * 10000.0);
             }
 
             float noise(vec2 p) {
-                return random(p.x + p.y * 10000.0);
-            }
-
-            float stepNoise(vec2 p) {
-                return noise(floor(p));
+                return random((p.x + p.y) * 10000.0);
             }
             ${shader.fragmentShader}
         `.replace(
             `#include <dithering_fragment>`,
             `#include <dithering_fragment>
 
-            vec2 p = vPosition * 10000.0;
-            float brightness = stepNoise(p);
-            float lightingEffect = dot(vNormal, vec3(0.0, 0.0, 1.0));
-            gl_FragColor.rgb *= vec3(brightness) * lightingEffect;
+            float noise_v = noise(gl_FragColor.rg);
+            gl_FragColor.rgb += vec3(noise_v);
             `
         );
     };