Initial project import

node_modules/three-stdlib/loaders/MDDLoader.js

@@ -0,0 +1,59 @@
+import { Loader, FileLoader, NumberKeyframeTrack, AnimationClip, BufferAttribute } from "three";
+class MDDLoader extends Loader {
+  constructor(manager) {
+    super(manager);
+  }
+  load(url, onLoad, onProgress, onError) {
+    const scope = this;
+    const loader = new FileLoader(this.manager);
+    loader.setPath(this.path);
+    loader.setResponseType("arraybuffer");
+    loader.load(
+      url,
+      function(data) {
+        onLoad(scope.parse(data));
+      },
+      onProgress,
+      onError
+    );
+  }
+  parse(data) {
+    const view = new DataView(data);
+    const totalFrames = view.getUint32(0);
+    const totalPoints = view.getUint32(4);
+    let offset = 8;
+    const times = new Float32Array(totalFrames);
+    const values = new Float32Array(totalFrames * totalFrames).fill(0);
+    for (let i = 0; i < totalFrames; i++) {
+      times[i] = view.getFloat32(offset);
+      offset += 4;
+      values[totalFrames * i + i] = 1;
+    }
+    const track = new NumberKeyframeTrack(".morphTargetInfluences", times, values);
+    const clip = new AnimationClip("default", times[times.length - 1], [track]);
+    const morphTargets = [];
+    for (let i = 0; i < totalFrames; i++) {
+      const morphTarget = new Float32Array(totalPoints * 3);
+      for (let j = 0; j < totalPoints; j++) {
+        const stride = j * 3;
+        morphTarget[stride + 0] = view.getFloat32(offset);
+        offset += 4;
+        morphTarget[stride + 1] = view.getFloat32(offset);
+        offset += 4;
+        morphTarget[stride + 2] = view.getFloat32(offset);
+        offset += 4;
+      }
+      const attribute = new BufferAttribute(morphTarget, 3);
+      attribute.name = "morph_" + i;
+      morphTargets.push(attribute);
+    }
+    return {
+      morphTargets,
+      clip
+    };
+  }
+}
+export {
+  MDDLoader
+};
+//# sourceMappingURL=MDDLoader.js.map