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[...]
} else if (node instanceof Shape3D) {
    Shape3D shape = (Shape3D)node;
    [...]
    // Read object geometries
    for (int i = 0, n = shape.numGeometries(); i < n; i++) {
      readNodeGeometry(shape.getGeometry(i), parentTransformations, texCoordGeneration,
          textureTransform, cullFace, backFaceNormalFlip);
    }
[...]

[...]
private void readNodeGeometry(Geometry geometry,
                              Transform3D parentTransformations,
                              TexCoordGeneration texCoordGeneration,
                              Transform3D textureTransform,
                              int cullFace,
                              boolean backFaceNormalFlip) {
  if (geometry instanceof GeometryArray) {
    GeometryArray geometryArray = (GeometryArray)geometry;
[...]