feat: added material variant switcher for task 1 in r3f

Week-2/Task-1/r3f/src/App.css

@@ -0,0 +1,41 @@
+.app-container {
+  width: 100vw;
+  height: 100vh;
+  position: relative;
+  background-color: white;
+  overflow: hidden;
+}
+
+#controls {
+  position: absolute;
+  top: 20px;
+  left: 20px;
+  z-index: 10;
+  display: flex;
+  gap: 10px;
+}
+
+button {
+  padding: 8px 16px;
+  cursor: pointer;
+  background: #f0f0f0;
+  border: 1px solid #ccc;
+  border-radius: 4px;
+  font-weight: 500;
+  transition: all 0.2s;
+}
+
+button:hover {
+  background: #e0e0e0;
+}
+
+button.active {
+  background: #333;
+  color: white;
+  border-color: #333;
+}
+
+.canvas-wrapper {
+  width: 100%;
+  height: 100%;
+}

Week-2/Task-1/r3f/src/App.jsx

@@ -1,5 +1,55 @@
+import React, { useState } from 'react';
+import { Canvas } from '@react-three/fiber';
+import { OrbitControls, PerspectiveCamera } from '@react-three/drei';
+import './App.css';
+
+const materials = {
+  black: { color: "black", roughness: 1, metalness: 0 },
+  silver: { color: "#C0C0C0", roughness: 0.3, metalness: 1 },
+  gold: { color: "#FFD700", roughness: 0.4, metalness: 1 },
+};
+
+function Scene({ variant }) {
+  return (
+    <>
+      <color attach="background" args={["white"]} />
+      
+      <ambientLight intensity={0.6 * Math.PI} />
+      <pointLight position={[5, 5, 5]} intensity={1.0 * Math.PI} />
+
+      <mesh rotation={[0, 0, 0]}>
+        <torusKnotGeometry args={[0.8, 0.3, 100, 16]} />
+        <meshStandardMaterial {...materials[variant]}/>
+      </mesh>
+
+      <OrbitControls makeDefault enableDamping dampingFactor={0.05} />
+    </>
+  );
+}
+
 export default function App() {
-    return (
-        <></>
-    )
+  const [activeVariant, setActiveVariant] = useState('black');
+
+  return (
+    <div className="app-container">
+      <div id="controls">
+        {Object.keys(materials).map((variant) => (
+          <button
+            key={variant}
+            className={activeVariant === variant ? 'active' : ''}
+            onClick={() => setActiveVariant(variant)}
+          >
+            {variant.charAt(0).toUpperCase() + variant.slice(1)}
+          </button>
+        ))}
+      </div>
+
+      <div className="canvas-wrapper">
+        <Canvas dpr={[1, 2]}>
+          <PerspectiveCamera makeDefault position={[0, 0, 5]} />
+          <Scene variant={activeVariant} />
+        </Canvas>
+      </div>
+    </div>
+  );
 }

Week-2/Task-1/r3f/src/index.css

@@ -1,12 +0,0 @@
-* {
-  box-sizing: border-box;
-}
-
-body, html, #root {
-  margin: 0;
-  padding: 0;
-  width: 100%;
-  height: 100%;
-  overflow: hidden;
-  background-color: #111;
-}

Week-2/Task-1/r3f/src/main.jsx

@@ -1,10 +1,8 @@
 import { StrictMode } from 'react'
 import { createRoot } from 'react-dom/client'
-import './index.css'
 import App from './App.jsx'
-
 createRoot(document.getElementById('root')).render(
   <StrictMode>
     <App />
   </StrictMode>,
-)
+)