Update app.py

app.py

@@ -256,8 +256,8 @@ EDITOR_TEMPLATE = '''
         const textures = {
             grass: textureLoader.load('https://cdn.jsdelivr.net/gh/mrdoob/three.js/examples/textures/terrain/grasslight-big.jpg'),
             rock: textureLoader.load('https://cdn.jsdelivr.net/gh/mrdoob/three.js/examples/textures/terrain/rock.jpg'),
-            dirt: textureLoader.load('https://cdn.jsdelivr.net/gh/mrdoob/three.js/examples/textures/terrain/dirt_grass.jpg'),
-            snow: textureLoader.load('https://cdn.jsdelivr.net/gh/mrdoob/three.js/examples/textures/snow.jpg'),
+            dirt: textureLoader.load('https://junior3d.ru/texture/%D0%97%D0%B5%D0%BC%D0%BB%D1%8F/%D0%93%D1%80%D1%83%D0%BD%D1%82/%D0%B3%D1%80%D1%83%D0%BD%D1%82_59.jpg'),
+            snow: textureLoader.load('https://media.istockphoto.com/id/172725391/it/foto/tessuto-da-neve.jpg?s=170667a&w=0&k=20&c=FF0U8Fygybj-Qq1SPDOIhsqAqj_4GhTOTFK560TMxyA='),
             sand: textureLoader.load('https://cdn.jsdelivr.net/gh/mrdoob/three.js/examples/textures/terrain/sand-512.jpg')
         };
         Object.values(textures).forEach(tex => {