diff --git a/Package.swift b/Package.swift
index a58c3a21..8c46f9af 100644
--- a/Package.swift
+++ b/Package.swift
@@ -631,6 +631,9 @@ let package = Package(
         .target(name: "OpenImageIO"),
         .target(name: "OpenTimelineIO"),
         .target(name: "MaterialX"),
+        .target(name: "OpenVDB"),
+        .target(name: "OpenSubdiv"),
+        .target(name: "Ptex"),
         Arch.OS.python(),
       ],
       swiftSettings: [
diff --git a/Sources/MetaversalDemo/Creator.swift b/Sources/MetaversalDemo/Creator.swift
index d0456b15..1a08db93 100644
--- a/Sources/MetaversalDemo/Creator.swift
+++ b/Sources/MetaversalDemo/Creator.swift
@@ -37,6 +37,9 @@ import OpenEXR
 import OpenImageIO
 import OpenTime
 import OpenTimelineIO
+import OpenVDB
+import OpenSubdiv
+import Ptex
 #if canImport(Python)
   import PyBundle
   import Python
diff --git a/Sources/OpenSubdiv/include/OpenSubdiv/OpenSubdiv.h b/Sources/OpenSubdiv/include/OpenSubdiv/OpenSubdiv.h
index 76b003e7..a3094ee4 100644
--- a/Sources/OpenSubdiv/include/OpenSubdiv/OpenSubdiv.h
+++ b/Sources/OpenSubdiv/include/OpenSubdiv/OpenSubdiv.h
@@ -85,6 +85,10 @@
 #include <OpenSubdiv/OSDBaseVertexTag.h>
 
 /* hierarchical boundary representation. */
+#include <OpenSubdiv/OSDBoundHierarchicalEdit.h>
+#include <OpenSubdiv/OSDBoundMesh.h>
+#include <OpenSubdiv/OSDBoundVertex.h>
+#include <OpenSubdiv/OSDBoundVertexEdit.h>
 #include <OpenSubdiv/OSDBoundAllocator.h>
 #include <OpenSubdiv/OSDBoundBilinear.h>
 #include <OpenSubdiv/OSDBoundCatmark.h>
@@ -95,25 +99,19 @@
 #include <OpenSubdiv/OSDBoundFvarData.h>
 #include <OpenSubdiv/OSDBoundFvarEdit.h>
 #include <OpenSubdiv/OSDBoundHalfedge.h>
-#include <OpenSubdiv/OSDBoundHierarchicalEdit.h>
+
 #include <OpenSubdiv/OSDBoundHoleEdit.h>
 #include <OpenSubdiv/OSDBoundLoop.h>
-#include <OpenSubdiv/OSDBoundMesh.h>
 #include <OpenSubdiv/OSDBoundSubdivision.h>
-#include <OpenSubdiv/OSDBoundVertex.h>
-#include <OpenSubdiv/OSDBoundVertexEdit.h>
 
 /* device dependent surfaces. */
 #include <OpenSubdiv/OSDSurfaceBufferDescriptor.h>
-#include <OpenSubdiv/OSDSurfaceCpuD3D11VertexBuffer.h>
 #include <OpenSubdiv/OSDSurfaceCpuEvaluator.h>
 #include <OpenSubdiv/OSDSurfaceCpuGLVertexBuffer.h>
 #include <OpenSubdiv/OSDSurfaceCpuKernel.h>
 #include <OpenSubdiv/OSDSurfaceCpuPatchTable.h>
 #include <OpenSubdiv/OSDSurfaceCpuVertexBuffer.h>
-#include <OpenSubdiv/OSDSurfaceCudaD3D11VertexBuffer.h>
 #include <OpenSubdiv/OSDSurfaceCudaEvaluator.h>
-#include <OpenSubdiv/OSDSurfaceOpenCLD3D11VertexBuffer.h>
 #include <OpenSubdiv/OSDSurfaceOpenCLEvaluator.h>
 #include <OpenSubdiv/OSDSurfaceOpenCLGLVertexBuffer.h>
 #include <OpenSubdiv/OSDSurfaceOpenCLPatchTable.h>
@@ -149,11 +147,16 @@
 #include <OpenSubdiv/OSDSurfaceTBBEvaluator.h>
 #include <OpenSubdiv/OSDSurfaceTBBKernel.h>
 #include <OpenSubdiv/OSDSurfaceTypes.h>
-#include <OpenSubdiv/OSDSurfaced3D11ComputeEvaluator.h>
-#include <OpenSubdiv/OSDSurfaced3D11LegacyGregoryPatchTable.h>
-#include <OpenSubdiv/OSDSurfaced3D11Mesh.h>
-#include <OpenSubdiv/OSDSurfaced3D11PatchTable.h>
-#include <OpenSubdiv/OSDSurfaced3D11VertexBuffer.h>
+#if !defined(__APPLE__)
+# include <OpenSubdiv/OSDSurfaceCpuD3D11VertexBuffer.h>
+# include <OpenSubdiv/OSDSurfaceCudaD3D11VertexBuffer.h>
+# include <OpenSubdiv/OSDSurfaceOpenCLD3D11VertexBuffer.h>
+# include <OpenSubdiv/OSDSurfaced3D11ComputeEvaluator.h>
+# include <OpenSubdiv/OSDSurfaced3D11LegacyGregoryPatchTable.h>
+# include <OpenSubdiv/OSDSurfaced3D11Mesh.h>
+# include <OpenSubdiv/OSDSurfaced3D11PatchTable.h>
+# include <OpenSubdiv/OSDSurfaced3D11VertexBuffer.h>
+#endif /* !defined(__APPLE__) */
 
 /* vectorized topology refinement. */
 #include <OpenSubdiv/OSDVectorArray.h>
diff --git a/Sources/Ptex/include/Ptex.h b/Sources/Ptex/include/Ptex.h
new file mode 100644
index 00000000..fe0482f2
--- /dev/null
+++ b/Sources/Ptex/include/Ptex.h
@@ -0,0 +1,23 @@
+#ifndef __PTEX_H__
+#define __PTEX_H__
+
+#include <PtexCache.h>
+#include <PtexExports.h>
+#include <PtexHalf.h>
+#include <PtexHalfTables.h>
+#include <PtexHashMap.h>
+#include <PtexIO.h>
+#include <PtexInt.h>
+#include <PtexMutex.h>
+#include <PtexPlatform.h>
+#include <PtexReader.h>
+#include <PtexSeparableFilter.h>
+#include <PtexSeparableKernel.h>
+#include <PtexTriangleFilter.h>
+#include <PtexTriangleKernel.h>
+#include <PtexUtils.h>
+#include <PtexVersion.h>
+#include <PtexWriter.h>
+#include <Ptexture.h>
+
+#endif /* __PTEX_H__ */
diff --git a/Sources/Ptex/include/PtexReader.h b/Sources/Ptex/include/PtexReader.h
index a9274808..a79215f6 100644
--- a/Sources/Ptex/include/PtexReader.h
+++ b/Sources/Ptex/include/PtexReader.h
@@ -41,6 +41,7 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
 #include <string>
 #include <map>
 #include <errno.h>
+#include <iostream>
 #include "Ptexture.h"
 #include "PtexIO.h"
 #include "PtexUtils.h"