From 32b6702efd5eb3c53ac1365e1572984e51c0fc10 Mon Sep 17 00:00:00 2001
From: Kseninia Mikhaylova <k.mikhailova@svs-tech.pro>
Date: Mon, 30 Sep 2024 13:54:15 +0300
Subject: [PATCH] shader test

---
 utils/material.ts | 102 ++++++++++++++++++++++++++--------------------
 1 file changed, 58 insertions(+), 44 deletions(-)

diff --git a/utils/material.ts b/utils/material.ts
index 309e4bd..12d7b49 100644
--- a/utils/material.ts
+++ b/utils/material.ts
@@ -46,18 +46,67 @@ function generateNoiseTexture(width: number, height: number) {
     return texture;
 }
 
+const m = new MeshStandardMaterial({
+    // alphaMap: pattern ? texture : null,
+    transparent: true,
+    opacity: 1,
+    roughness: 0.5,
+    metalness: 0,
+    side: DoubleSide,
+})
+
+const m_onBeforeCompile = (shader) => {
+    // Добавляем uniform переменную
+    shader.uniforms.customUniform = { value: 1.0 };
+
+    // Изменяем вершинный шейдер
+    shader.vertexShader = `
+        uniform float customUniform;
+        varying vec2 vPosition; 
+        ${shader.vertexShader}
+    `.replace(
+        `#include <begin_vertex>`,
+        `#include <begin_vertex>
+        vPosition = position.xy;
+        `
+    );
+
+    // Изменяем фрагментный шейдер
+    shader.fragmentShader = `
+        float random(float p) {
+            return fract(sin(p) * 10000.0);
+        }
+
+        float noise(vec2 p) {
+            return random((p.x + p.y) * 10000.0);
+        }
+        ${shader.fragmentShader}
+    `
+        // .replace(
+        //     `#include <map_fragment>`,
+        //     `
+        //     float noise_v = noise(diffuseColor.rg);
+        //     float clamped_noise = clamp(noise_v, -0.15, 0.15);
+        //     diffuseColor.rgb *= clamped_noise;
+        //     #include <map_fragment>
+        //     `
+        // )
+        .replace(
+            `#include <dithering_fragment>`,
+            `#include <dithering_fragment>
+
+            float noise_v = noise(gl_FragColor.rg);
+            float clamped_noise = clamp(noise_v, -0.05, 0.05);
+            gl_FragColor.rgb -= clamp(vec3(clamped_noise), 0.0, 1.0);
+        `
+        );
+};
 export const set_material = (scene: any, color: any, pattern: { pattern: patternTypes, count: number } | undefined = undefined) => {
     let c = color
 
-    const material = new MeshStandardMaterial({
-        color: new Color(c || '#9c9c00'),
-        // alphaMap: pattern ? texture : null,
-        transparent: true,
-        opacity: 1,
-        roughness: 0.5,
-        metalness: 0,
-        side: DoubleSide,
-    })
+    const material = m.clone()
+    material.color = new Color(c || '#9c9c00')
+    material.onBeforeCompile = m_onBeforeCompile
 
     const promises = []
     if (pattern && pattern.pattern !== undefined) {
@@ -74,41 +123,6 @@ export const set_material = (scene: any, color: any, pattern: { pattern: pattern
             })
         }
     }
-    material.onBeforeCompile = (shader) => {
-        // Добавляем uniform переменную
-        shader.uniforms.customUniform = { value: 1.0 };
-
-        // Изменяем вершинный шейдер
-        shader.vertexShader = `
-            uniform float customUniform;
-            varying vec2 vPosition; 
-            ${shader.vertexShader}
-        `.replace(
-            `#include <begin_vertex>`,
-            `#include <begin_vertex>
-            vPosition = position.xy;
-            `
-        );
-
-        // Изменяем фрагментный шейдер
-        shader.fragmentShader = `
-            float random(float p) {
-                return fract(sin(p) * 10000.0);
-            }
-
-            float noise(vec2 p) {
-                return random((p.x + p.y) * 10000.0);
-            }
-            ${shader.fragmentShader}
-        `.replace(
-            `#include <dithering_fragment>`,
-            `#include <dithering_fragment>
-
-            float noise_v = noise(gl_FragColor.rg);
-            gl_FragColor.rgb += vec3(noise_v);
-            `
-        );
-    };
 
     if (scene) set_metaril_func(scene, material)
     else console.log(scene)