Initial project import

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

@@ -0,0 +1,51 @@
+import * as React from 'react';
+import { useTexture } from './Texture.js';
+import { suspend } from 'suspend-react';
+
+function getFormatString(format) {
+  switch (format) {
+    case 64:
+      return '-64px';
+    case 128:
+      return '-128px';
+    case 256:
+      return '-256px';
+    case 512:
+      return '-512px';
+    default:
+      return '';
+  }
+}
+const LIST_URL = 'https://cdn.jsdelivr.net/gh/pmndrs/drei-assets@master/matcaps.json';
+const MATCAP_ROOT = 'https://rawcdn.githack.com/emmelleppi/matcaps/9b36ccaaf0a24881a39062d05566c9e92be4aa0d';
+function useMatcapTexture(id = 0, format = 1024, onLoad) {
+  const matcapList = suspend(() => fetch(LIST_URL).then(res => res.json()), ['matcapList']);
+  const DEFAULT_MATCAP = matcapList[0];
+  const numTot = React.useMemo(() => Object.keys(matcapList).length, []);
+  const fileHash = React.useMemo(() => {
+    if (typeof id === 'string') {
+      return id;
+    } else if (typeof id === 'number') {
+      return matcapList[id];
+    }
+    return null;
+  }, [id]);
+  const fileName = `${fileHash || DEFAULT_MATCAP}${getFormatString(format)}.png`;
+  const url = `${MATCAP_ROOT}/${format}/${fileName}`;
+  const matcapTexture = useTexture(url, onLoad);
+  return [matcapTexture, url, numTot];
+}
+
+//
+
+const MatcapTexture = ({
+  children,
+  id,
+  format,
+  onLoad
+}) => {
+  const texture = useMatcapTexture(id, format, onLoad);
+  return /*#__PURE__*/React.createElement(React.Fragment, null, children == null ? void 0 : children(texture));
+};
+
+export { MatcapTexture, useMatcapTexture };