Initial project import

node_modules/@react-three/drei/core/MultiMaterial.js

@@ -0,0 +1,29 @@
+import _extends from '@babel/runtime/helpers/esm/extends';
+import * as React from 'react';
+
+function MultiMaterial(props) {
+  const group = React.useRef(null);
+  React.useLayoutEffect(() => {
+    const parent = group.current.parent;
+    const geometry = parent == null ? void 0 : parent.geometry;
+    if (geometry) {
+      const oldMaterial = parent.material;
+      parent.material = group.current.__r3f.children.map(instance => instance.object);
+      const oldGroups = [...geometry.groups];
+      geometry.clearGroups();
+      parent.material.forEach((material, index) => {
+        if (index < parent.material.length - 1) material.depthWrite = false;
+        geometry.addGroup(0, Infinity, index);
+      });
+      return () => {
+        parent.material = oldMaterial;
+        geometry.groups = oldGroups;
+      };
+    }
+  });
+  return /*#__PURE__*/React.createElement("group", _extends({
+    ref: group
+  }, props));
+}
+
+export { MultiMaterial };