Initial project import

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

@@ -0,0 +1,33 @@
+import * as React from 'react';
+
+const easeInExpo = x => x === 0 ? 0 : Math.pow(2, 10 * x - 10);
+function Backdrop({
+  children,
+  floor = 0.25,
+  segments = 20,
+  receiveShadow,
+  ...props
+}) {
+  const ref = React.useRef(null);
+  React.useLayoutEffect(() => {
+    let i = 0;
+    const offset = segments / segments / 2;
+    const position = ref.current.attributes.position;
+    for (let x = 0; x < segments + 1; x++) {
+      for (let y = 0; y < segments + 1; y++) {
+        position.setXYZ(i++, x / segments - offset + (x === 0 ? -floor : 0), y / segments - offset, easeInExpo(x / segments));
+      }
+    }
+    position.needsUpdate = true;
+    ref.current.computeVertexNormals();
+  }, [segments, floor]);
+  return /*#__PURE__*/React.createElement("group", props, /*#__PURE__*/React.createElement("mesh", {
+    receiveShadow: receiveShadow,
+    rotation: [-Math.PI / 2, 0, Math.PI / 2]
+  }, /*#__PURE__*/React.createElement("planeGeometry", {
+    ref: ref,
+    args: [1, 1, segments, segments]
+  }), children));
+}
+
+export { Backdrop };