diff --git a/examples/dxPtexViewer/dxPtexViewer.cpp b/examples/dxPtexViewer/dxPtexViewer.cpp
index 39b32562..da34e1a7 100644
--- a/examples/dxPtexViewer/dxPtexViewer.cpp
+++ b/examples/dxPtexViewer/dxPtexViewer.cpp
@@ -909,10 +909,13 @@ bindProgram(Effect effect, OpenSubdiv::Osd::DrawContext::PatchArray const & patc
     if (g_mesh->GetDrawContext()->quadOffsetBufferSRV) {
         g_pd3dDeviceContext->HSSetShaderResources(2, 1, &g_mesh->GetDrawContext()->quadOffsetBufferSRV);
     }
-    if (g_mesh->GetDrawContext()->ptexCoordinateBufferSRV) {
-        g_pd3dDeviceContext->HSSetShaderResources(3, 1, &g_mesh->GetDrawContext()->ptexCoordinateBufferSRV);
-        g_pd3dDeviceContext->DSSetShaderResources(3, 1, &g_mesh->GetDrawContext()->ptexCoordinateBufferSRV);
-        g_pd3dDeviceContext->GSSetShaderResources(3, 1, &g_mesh->GetDrawContext()->ptexCoordinateBufferSRV);
+    if (g_mesh->GetDrawContext()->patchParamBufferSRV) {
+        g_pd3dDeviceContext->HSSetShaderResources(
+            3, 1, &g_mesh->GetDrawContext()->patchParamBufferSRV);
+        g_pd3dDeviceContext->DSSetShaderResources(
+            3, 1, &g_mesh->GetDrawContext()->patchParamBufferSRV);
+        g_pd3dDeviceContext->GSSetShaderResources(
+            3, 1, &g_mesh->GetDrawContext()->patchParamBufferSRV);
     }
 
     g_pd3dDeviceContext->PSSetShaderResources(4, 1, g_osdPTexImage->GetTexelsSRV());
diff --git a/examples/dxViewer/dxviewer.cpp b/examples/dxViewer/dxviewer.cpp
index 4699a0a4..4c8a41d7 100644
--- a/examples/dxViewer/dxviewer.cpp
+++ b/examples/dxViewer/dxviewer.cpp
@@ -762,9 +762,11 @@ bindProgram(Effect effect, OpenSubdiv::Osd::DrawContext::PatchArray const & patc
     if (g_mesh->GetDrawContext()->quadOffsetBufferSRV) {
         g_pd3dDeviceContext->HSSetShaderResources(2, 1, &g_mesh->GetDrawContext()->quadOffsetBufferSRV);
     }
-    if (g_mesh->GetDrawContext()->ptexCoordinateBufferSRV) {
-        g_pd3dDeviceContext->HSSetShaderResources(3, 1, &g_mesh->GetDrawContext()->ptexCoordinateBufferSRV);
-        g_pd3dDeviceContext->DSSetShaderResources(3, 1, &g_mesh->GetDrawContext()->ptexCoordinateBufferSRV);
+    if (g_mesh->GetDrawContext()->patchParamBufferSRV) {
+        g_pd3dDeviceContext->HSSetShaderResources(
+            3, 1, &g_mesh->GetDrawContext()->patchParamBufferSRV);
+        g_pd3dDeviceContext->DSSetShaderResources(
+            3, 1, &g_mesh->GetDrawContext()->patchParamBufferSRV);
     }
 }
 
diff --git a/examples/glPaintTest/glPaintTest.cpp b/examples/glPaintTest/glPaintTest.cpp
index 5828a974..e764d7f6 100644
--- a/examples/glPaintTest/glPaintTest.cpp
+++ b/examples/glPaintTest/glPaintTest.cpp
@@ -236,7 +236,6 @@ createOsdMesh() {
     bool doAdaptive = true;
     OpenSubdiv::Osd::MeshBitset bits;
     bits.set(OpenSubdiv::Osd::MeshAdaptive, doAdaptive);
-    bits.set(OpenSubdiv::Osd::MeshPtexData, true);
 
     g_mesh = new OpenSubdiv::Osd::Mesh<OpenSubdiv::Osd::CpuGLVertexBuffer,
                                        OpenSubdiv::Far::StencilTables,
diff --git a/examples/glPtexViewer/glPtexViewer.cpp b/examples/glPtexViewer/glPtexViewer.cpp
index 18c8aab7..0995505d 100644
--- a/examples/glPtexViewer/glPtexViewer.cpp
+++ b/examples/glPtexViewer/glPtexViewer.cpp
@@ -1005,7 +1005,6 @@ createOsdMesh(int level, int kernel) {
 
     OpenSubdiv::Osd::MeshBitset bits;
     bits.set(OpenSubdiv::Osd::MeshAdaptive, doAdaptive);
-    bits.set(OpenSubdiv::Osd::MeshPtexData, true);
     bits.set(OpenSubdiv::Osd::MeshEndCapGregoryBasis, true);
 
     int numVertexElements = g_adaptive ? 3 : 6;
diff --git a/opensubdiv/osd/d3d11DrawContext.cpp b/opensubdiv/osd/d3d11DrawContext.cpp
index 638d19fe..3b0285b3 100644
--- a/opensubdiv/osd/d3d11DrawContext.cpp
+++ b/opensubdiv/osd/d3d11DrawContext.cpp
@@ -35,8 +35,8 @@ namespace Osd {
 
 D3D11DrawContext::D3D11DrawContext() :
     patchIndexBuffer(NULL),
-    ptexCoordinateBuffer(NULL),
-    ptexCoordinateBufferSRV(NULL),
+    patchParamBuffer(NULL),
+    patchParamBufferSRV(NULL),
     fvarDataBuffer(NULL),
     fvarDataBufferSRV(NULL),
     vertexBufferSRV(NULL),
@@ -50,8 +50,8 @@ D3D11DrawContext::D3D11DrawContext() :
 D3D11DrawContext::~D3D11DrawContext()
 {
     if (patchIndexBuffer) patchIndexBuffer->Release();
-    if (ptexCoordinateBuffer) ptexCoordinateBuffer->Release();
-    if (ptexCoordinateBufferSRV) ptexCoordinateBufferSRV->Release();
+    if (patchParamBuffer) patchParamBuffer->Release();
+    if (patchParamBufferSRV) patchParamBufferSRV->Release();
     if (fvarDataBuffer) fvarDataBuffer->Release();
     if (fvarDataBufferSRV) fvarDataBufferSRV->Release();
     if (vertexBufferSRV) vertexBufferSRV->Release();
@@ -116,7 +116,7 @@ D3D11DrawContext::create(Far::PatchTables const &patchTables,
 
     // allocate and initialize additional buffer data
 
-    // create ptex coordinate buffer
+    // create patch param buffer
     Far::PatchParamTable const & patchParamTables =
         patchTables.GetPatchParamTable();
 
@@ -144,7 +144,7 @@ D3D11DrawContext::create(Far::PatchTables const &patchTables,
         bd.CPUAccessFlags = D3D11_CPU_ACCESS_WRITE;
         bd.MiscFlags = 0;
         bd.StructureByteStride = sizeof(unsigned int);
-        hr = pd3d11Device->CreateBuffer(&bd, NULL, &ptexCoordinateBuffer);
+        hr = pd3d11Device->CreateBuffer(&bd, NULL, &patchParamBuffer);
         if (FAILED(hr)) {
             return false;
         }
@@ -155,17 +155,18 @@ D3D11DrawContext::create(Far::PatchTables const &patchTables,
         srvd.ViewDimension = D3D11_SRV_DIMENSION_BUFFER;
         srvd.Buffer.FirstElement = 0;
         srvd.Buffer.NumElements = numElements;
-        hr = pd3d11Device->CreateShaderResourceView(ptexCoordinateBuffer, &srvd, &ptexCoordinateBufferSRV);
+        hr = pd3d11Device->CreateShaderResourceView(
+            patchParamBuffer, &srvd, &patchParamBufferSRV);
         if (FAILED(hr)) {
             return false;
         }
-        hr = pd3d11DeviceContext->Map(ptexCoordinateBuffer, 0, D3D11_MAP_WRITE_DISCARD, 0, &mappedResource);
+        hr = pd3d11DeviceContext->Map(patchParamBuffer, 0, D3D11_MAP_WRITE_DISCARD, 0, &mappedResource);
         if (FAILED(hr)) {
             return false;
         }
-        unsigned int * ptexBuffer = (unsigned int *) mappedResource.pData;
-        memcpy(ptexBuffer, values, numElements * elementSize);
-        pd3d11DeviceContext->Unmap(ptexCoordinateBuffer, 0);
+        unsigned int *dst = (unsigned int *) mappedResource.pData;
+        memcpy(dst, values, numElements * elementSize);
+        pd3d11DeviceContext->Unmap(patchParamBuffer, 0);
     }
 
     // create vertex valence buffer and vertex texture
diff --git a/opensubdiv/osd/d3d11DrawContext.h b/opensubdiv/osd/d3d11DrawContext.h
index f3879ef0..418f3aef 100644
--- a/opensubdiv/osd/d3d11DrawContext.h
+++ b/opensubdiv/osd/d3d11DrawContext.h
@@ -108,8 +108,8 @@ public:
 
     ID3D11Buffer             *patchIndexBuffer;
 
-    ID3D11Buffer             *ptexCoordinateBuffer;
-    ID3D11ShaderResourceView *ptexCoordinateBufferSRV;
+    ID3D11Buffer             *patchParamBuffer;
+    ID3D11ShaderResourceView *patchParamBufferSRV;
 
     ID3D11Buffer             *fvarDataBuffer;
     ID3D11ShaderResourceView *fvarDataBufferSRV;
diff --git a/opensubdiv/osd/d3d11DrawRegistry.h b/opensubdiv/osd/d3d11DrawRegistry.h
index 99632ceb..fe08a6b6 100644
--- a/opensubdiv/osd/d3d11DrawRegistry.h
+++ b/opensubdiv/osd/d3d11DrawRegistry.h
@@ -84,18 +84,10 @@ public:
     typedef D3D11DrawConfig ConfigType;
     typedef D3D11DrawSourceConfig SourceConfigType;
 
-    D3D11DrawRegistryBase(bool enablePtex=false) : _enablePtex(enablePtex) { }
+    D3D11DrawRegistryBase() { }
 
     virtual ~D3D11DrawRegistryBase();
 
-    bool IsPtexEnabled() const {
-        return _enablePtex;
-    }
-
-    void SetPtexEnabled(bool b) {
-        _enablePtex=b;
-    }
-
 protected:
     virtual ConfigType * _NewDrawConfig() { return new ConfigType(); }
     virtual ConfigType *
@@ -109,9 +101,6 @@ protected:
     virtual SourceConfigType * _NewDrawSourceConfig() { return new SourceConfigType(); }
     virtual SourceConfigType *
     _CreateDrawSourceConfig(DescType const & desc, ID3D11Device * pd3dDevice);
-
-private:
-    bool _enablePtex;
 };
 
 //------------------------------------------------------------------------------
diff --git a/opensubdiv/osd/mesh.h b/opensubdiv/osd/mesh.h
index d2c77549..bcdfd4f9 100644
--- a/opensubdiv/osd/mesh.h
+++ b/opensubdiv/osd/mesh.h
@@ -49,13 +49,12 @@ namespace Osd {
 enum MeshBits {
     MeshAdaptive             = 0,
     MeshInterleaveVarying    = 1,
-    MeshPtexData             = 2,
-    MeshFVarData             = 3,
-    MeshUseSingleCreasePatch = 4,
-    MeshEndCapBSplineBasis   = 5,  // exclusive
-    MeshEndCapGregoryBasis   = 6,  // exclusive
-    MeshEndCapLegacyGregory  = 7,  // exclusive
-    NUM_MESH_BITS            = 8,
+    MeshFVarData             = 2,
+    MeshUseSingleCreasePatch = 3,
+    MeshEndCapBSplineBasis   = 4,  // exclusive
+    MeshEndCapGregoryBasis   = 5,  // exclusive
+    MeshEndCapLegacyGregory  = 6,  // exclusive
+    NUM_MESH_BITS            = 7,
 };
 typedef std::bitset<NUM_MESH_BITS> MeshBitset;