diff --git a/libraries/fbx/src/FBXReader.h b/libraries/fbx/src/FBXReader.h
index 3027eb52cc..01c3785086 100644
--- a/libraries/fbx/src/FBXReader.h
+++ b/libraries/fbx/src/FBXReader.h
@@ -181,7 +181,7 @@ public:
 
     unsigned int meshIndex; // the order the meshes appeared in the object file
 #   if USE_MODEL_MESH
-    model::Mesh _mesh;
+    model::MeshPointer _mesh;
 #   endif
 };
 
diff --git a/libraries/fbx/src/FBXReader_Mesh.cpp b/libraries/fbx/src/FBXReader_Mesh.cpp
index c0cf57df58..f3bf3f433d 100644
--- a/libraries/fbx/src/FBXReader_Mesh.cpp
+++ b/libraries/fbx/src/FBXReader_Mesh.cpp
@@ -370,19 +370,19 @@ void FBXReader::buildModelMesh(ExtractedMesh& extracted, const QString& url) {
     static QString repeatedMessage = LogHandler::getInstance().addRepeatedMessageRegex("buildModelMesh failed -- .*");
 
     if (extracted.mesh.vertices.size() == 0) {
-        extracted.mesh._mesh = model::Mesh();
+        extracted.mesh._mesh;
         qCDebug(modelformat) << "buildModelMesh failed -- no vertices, url = " << url;
         return;
     }
     FBXMesh& fbxMesh = extracted.mesh;
-    model::Mesh mesh;
+    model::MeshPointer mesh(new model::Mesh());
 
     // Grab the vertices in a buffer
     auto vb = std::make_shared<gpu::Buffer>();
     vb->setData(extracted.mesh.vertices.size() * sizeof(glm::vec3),
                 (const gpu::Byte*) extracted.mesh.vertices.data());
     gpu::BufferView vbv(vb, gpu::Element(gpu::VEC3, gpu::FLOAT, gpu::XYZ));
-    mesh.setVertexBuffer(vbv);
+    mesh->setVertexBuffer(vbv);
 
     // evaluate all attribute channels sizes
     int normalsSize = fbxMesh.normals.size() * sizeof(glm::vec3);
@@ -414,37 +414,37 @@ void FBXReader::buildModelMesh(ExtractedMesh& extracted, const QString& url) {
     attribBuffer->setSubData(clusterWeightsOffset, clusterWeightsSize, (gpu::Byte*) fbxMesh.clusterWeights.constData());
 
     if (normalsSize) {
-        mesh.addAttribute(gpu::Stream::NORMAL,
+        mesh->addAttribute(gpu::Stream::NORMAL,
                           model::BufferView(attribBuffer, normalsOffset, normalsSize,
                                             gpu::Element(gpu::VEC3, gpu::FLOAT, gpu::XYZ)));
     }
     if (tangentsSize) {
-        mesh.addAttribute(gpu::Stream::TANGENT,
+        mesh->addAttribute(gpu::Stream::TANGENT,
                           model::BufferView(attribBuffer, tangentsOffset, tangentsSize,
                                             gpu::Element(gpu::VEC3, gpu::FLOAT, gpu::XYZ)));
     }
     if (colorsSize) {
-        mesh.addAttribute(gpu::Stream::COLOR,
+        mesh->addAttribute(gpu::Stream::COLOR,
                           model::BufferView(attribBuffer, colorsOffset, colorsSize,
                                             gpu::Element(gpu::VEC3, gpu::FLOAT, gpu::RGB)));
     }
     if (texCoordsSize) {
-        mesh.addAttribute(gpu::Stream::TEXCOORD,
+        mesh->addAttribute(gpu::Stream::TEXCOORD,
                           model::BufferView( attribBuffer, texCoordsOffset, texCoordsSize,
                                              gpu::Element(gpu::VEC2, gpu::FLOAT, gpu::UV)));
     }
     if (texCoords1Size) {
-        mesh.addAttribute(gpu::Stream::TEXCOORD1,
+        mesh->addAttribute(gpu::Stream::TEXCOORD1,
                           model::BufferView(attribBuffer, texCoords1Offset, texCoords1Size,
                                             gpu::Element(gpu::VEC2, gpu::FLOAT, gpu::UV)));
     }
     if (clusterIndicesSize) {
-        mesh.addAttribute(gpu::Stream::SKIN_CLUSTER_INDEX,
+        mesh->addAttribute(gpu::Stream::SKIN_CLUSTER_INDEX,
                           model::BufferView(attribBuffer, clusterIndicesOffset, clusterIndicesSize,
                                             gpu::Element(gpu::VEC4, gpu::FLOAT, gpu::XYZW)));
     }
     if (clusterWeightsSize) {
-        mesh.addAttribute(gpu::Stream::SKIN_CLUSTER_WEIGHT,
+        mesh->addAttribute(gpu::Stream::SKIN_CLUSTER_WEIGHT,
                           model::BufferView(attribBuffer, clusterWeightsOffset, clusterWeightsSize,
                                             gpu::Element(gpu::VEC4, gpu::FLOAT, gpu::XYZW)));
     }
@@ -457,7 +457,6 @@ void FBXReader::buildModelMesh(ExtractedMesh& extracted, const QString& url) {
     }
 
     if (! totalIndices) {
-        extracted.mesh._mesh = model::Mesh();
         qCDebug(modelformat) << "buildModelMesh failed -- no indices, url = " << url;
         return;
     }
@@ -489,21 +488,20 @@ void FBXReader::buildModelMesh(ExtractedMesh& extracted, const QString& url) {
     }
 
     gpu::BufferView ibv(ib, gpu::Element(gpu::SCALAR, gpu::UINT32, gpu::XYZ));
-    mesh.setIndexBuffer(ibv);
+    mesh->setIndexBuffer(ibv);
 
     if (parts.size()) {
         auto pb = std::make_shared<gpu::Buffer>();
         pb->setData(parts.size() * sizeof(model::Mesh::Part), (const gpu::Byte*) parts.data());
         gpu::BufferView pbv(pb, gpu::Element(gpu::VEC4, gpu::UINT32, gpu::XYZW));
-        mesh.setPartBuffer(pbv);
+        mesh->setPartBuffer(pbv);
     } else {
-        extracted.mesh._mesh = model::Mesh();
         qCDebug(modelformat) << "buildModelMesh failed -- no parts, url = " << url;
         return;
     }
 
     // model::Box box =
-    mesh.evalPartBound(0);
+    mesh->evalPartBound(0);
 
     extracted.mesh._mesh = mesh;
 }
diff --git a/libraries/model-networking/src/model-networking/ModelCache.cpp b/libraries/model-networking/src/model-networking/ModelCache.cpp
index a66fda624d..71d225a43a 100644
--- a/libraries/model-networking/src/model-networking/ModelCache.cpp
+++ b/libraries/model-networking/src/model-networking/ModelCache.cpp
@@ -269,6 +269,7 @@ static NetworkMesh* buildNetworkMesh(const FBXMesh& mesh, const QUrl& textureBas
     auto textureCache = DependencyManager::get<TextureCache>();
     NetworkMesh* networkMesh = new NetworkMesh();
 
+    networkMesh->_mesh = mesh._mesh;
     int totalIndices = 0;
     bool checkForTexcoordLightmap = false;
 
diff --git a/libraries/model-networking/src/model-networking/ModelCache.h b/libraries/model-networking/src/model-networking/ModelCache.h
index 1110d36e3e..4067bed122 100644
--- a/libraries/model-networking/src/model-networking/ModelCache.h
+++ b/libraries/model-networking/src/model-networking/ModelCache.h
@@ -191,15 +191,14 @@ public:
 /// The state associated with a single mesh.
 class NetworkMesh {
 public:
+    model::MeshPointer _mesh;
+
     gpu::BufferPointer _indexBuffer;
     gpu::BufferPointer _vertexBuffer;
 
     gpu::BufferStreamPointer _vertexStream;
 
     gpu::Stream::FormatPointer _vertexFormat;
-
-    int getTranslucentPartCount(const FBXMesh& fbxMesh) const;
-    bool isPartTranslucent(const FBXMesh& fbxMesh, int partIndex) const;
 };
 
 #endif // hifi_GeometryCache_h
diff --git a/libraries/render-utils/src/Model.cpp b/libraries/render-utils/src/Model.cpp
index 7cf965951b..a374f9acb8 100644
--- a/libraries/render-utils/src/Model.cpp
+++ b/libraries/render-utils/src/Model.cpp
@@ -754,6 +754,16 @@ public:
     int meshIndex;
     int partIndex;
     int _shapeID;
+
+    render::Item::Bound getBound() const {
+        if (_isBoundInvalid) {
+            model->getPartBounds(meshIndex, partIndex);
+            _isBoundInvalid = false;
+        }
+        return _bound;
+    }
+    mutable render::Item::Bound _bound;
+    mutable bool _isBoundInvalid = true;
 };
 
 namespace render {
@@ -780,7 +790,7 @@ namespace render {
 
     template <> const Item::Bound payloadGetBound(const MeshPartPayload::Pointer& payload) {
         if (payload) {
-            return payload->model->getPartBounds(payload->meshIndex, payload->partIndex);
+            return payload->getBound(); // model->getPartBounds(payload->meshIndex, payload->partIndex);
         }
         return render::Item::Bound();
     }
@@ -1486,6 +1496,9 @@ void Model::renderPart(RenderArgs* args, int meshIndex, int partIndex, int shape
     const FBXMesh& mesh = geometry.meshes.at(meshIndex);
     const MeshState& state = _meshStates.at(meshIndex);
 
+    auto drawMesh = networkMesh._mesh;
+
+
     auto drawMaterialKey = material->getKey();
     bool translucentMesh = drawMaterialKey.isTransparent() || drawMaterialKey.isTransparentMap();
 
@@ -1541,7 +1554,9 @@ void Model::renderPart(RenderArgs* args, int meshIndex, int partIndex, int shape
         return; // FIXME!
     }
 
-    batch.setIndexBuffer(gpu::UINT32, (networkMesh._indexBuffer), 0);
+    // Assign index buffer:
+    batch.setIndexBuffer(gpu::UINT32, (drawMesh->getIndexBuffer()._buffer), 0);
+ //   batch.setIndexBuffer(gpu::UINT32, (networkMesh._indexBuffer), 0);
     int vertexCount = mesh.vertices.size();
     if (vertexCount == 0) {
         // sanity check
@@ -1574,10 +1589,21 @@ void Model::renderPart(RenderArgs* args, int meshIndex, int partIndex, int shape
     batch.setModelTransform(_transforms[0]);
 
     if (mesh.blendshapes.isEmpty()) {
-        batch.setInputFormat(networkMesh._vertexFormat);
-        batch.setInputStream(0, *networkMesh._vertexStream);
+        batch.setInputFormat((drawMesh->getVertexFormat()));
+        auto inputStream = drawMesh->makeBufferStream();
+
+        batch.setInputStream(0, inputStream);
+
+     //   batch.setInputFormat(networkMesh._vertexFormat);
+      //  batch.setInputStream(0, *networkMesh._vertexStream);
     } else {
+     /*   batch.setInputFormat((drawMesh->getVertexFormat()));
+        auto inputStream = drawMesh->makeBufferStream();
+
+        batch.setInputStream(0, inputStream);
+        */
         batch.setInputFormat(networkMesh._vertexFormat);
+        
         batch.setInputBuffer(0, _blendedVertexBuffers[meshIndex], 0, sizeof(glm::vec3));
         batch.setInputBuffer(1, _blendedVertexBuffers[meshIndex], vertexCount * sizeof(glm::vec3), sizeof(glm::vec3));
         batch.setInputStream(2, *networkMesh._vertexStream);
@@ -1702,9 +1728,12 @@ void Model::renderPart(RenderArgs* args, int meshIndex, int partIndex, int shape
         }
     }
 
-    batch.setIndexBuffer(gpu::UINT32, part.getMergedTriangles(), 0);
-    batch.drawIndexed(gpu::TRIANGLES, part.mergedTrianglesIndicesCount, 0);
+    auto& drawPart = drawMesh->getPartBuffer().get<model::Mesh::Part>();
+    batch.drawIndexed(model::Mesh::topologyToPrimitive(drawPart._topology), drawPart._numIndices, drawPart._startIndex);
 
+/*    batch.setIndexBuffer(gpu::UINT32, part.getMergedTriangles(), 0);
+    batch.drawIndexed(gpu::TRIANGLES, part.mergedTrianglesIndicesCount, 0);
+    */
     if (args) {
         const int INDICES_PER_TRIANGLE = 3;
         args->_details._trianglesRendered += part.mergedTrianglesIndicesCount / INDICES_PER_TRIANGLE;
diff --git a/libraries/render-utils/src/RenderDeferredTask.cpp b/libraries/render-utils/src/RenderDeferredTask.cpp
index 137294c5b6..0094a3c3a1 100755
--- a/libraries/render-utils/src/RenderDeferredTask.cpp
+++ b/libraries/render-utils/src/RenderDeferredTask.cpp
@@ -189,8 +189,12 @@ void DrawOpaqueDeferred::run(const SceneContextPointer& sceneContext, const Rend
 
     renderItems(sceneContext, renderContext, inItems, renderContext->_maxDrawnOpaqueItems);
 
-    args->_context->render((*args->_batch));
-    args->_batch = nullptr;
+    {
+        PerformanceTimer perfTimer("DrawOpaqueDeferred::run::renderBatch");
+
+        args->_context->render((*args->_batch));
+        args->_batch = nullptr;
+    }
 }
 
 void DrawTransparentDeferred::run(const SceneContextPointer& sceneContext, const RenderContextPointer& renderContext, const ItemIDsBounds& inItems) {