Combined UsdVol schema and Hydra changes

pxr/imaging/lib/hd/CMakeLists.txt

@@ -45,6 +45,7 @@ pxr_library(hd
         extCompPrimvarBufferSource
         extComputation
         extComputationContext
+	field
         geomSubset
         instancer
         instanceRegistry
@@ -90,6 +91,7 @@ pxr_library(hd
         unitTestNullRenderDelegate
         unitTestNullRenderPass
         vertexAdjacency
+	volume
         vtBufferSource
 
     PUBLIC_HEADERS

pxr/imaging/lib/hd/field.cpp

@@ -0,0 +1,37 @@
+//
+// Copyright 2018 Pixar
+//
+// Licensed under the Apache License, Version 2.0 (the "Apache License")
+// with the following modification; you may not use this file except in
+// compliance with the Apache License and the following modification to it:
+// Section 6. Trademarks. is deleted and replaced with:
+//
+// 6. Trademarks. This License does not grant permission to use the trade
+//    names, trademarks, service marks, or product names of the Licensor
+//    and its affiliates, except as required to comply with Section 4(c) of
+//    the License and to reproduce the content of the NOTICE file.
+//
+// You may obtain a copy of the Apache License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the Apache License with the above modification is
+// distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+// KIND, either express or implied. See the Apache License for the specific
+// language governing permissions and limitations under the Apache License.
+//
+#include "pxr/imaging/hd/field.h"
+
+PXR_NAMESPACE_OPEN_SCOPE
+
+HdField::HdField(SdfPath const &id)
+ : HdBprim(id)
+{
+}
+
+HdField::~HdField()
+{
+}
+
+PXR_NAMESPACE_CLOSE_SCOPE

pxr/imaging/lib/hd/field.h

@@ -0,0 +1,66 @@
+//
+// Copyright 2018 Pixar
+//
+// Licensed under the Apache License, Version 2.0 (the "Apache License")
+// with the following modification; you may not use this file except in
+// compliance with the Apache License and the following modification to it:
+// Section 6. Trademarks. is deleted and replaced with:
+//
+// 6. Trademarks. This License does not grant permission to use the trade
+//    names, trademarks, service marks, or product names of the Licensor
+//    and its affiliates, except as required to comply with Section 4(c) of
+//    the License and to reproduce the content of the NOTICE file.
+//
+// You may obtain a copy of the Apache License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the Apache License with the above modification is
+// distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+// KIND, either express or implied. See the Apache License for the specific
+// language governing permissions and limitations under the Apache License.
+//
+#ifndef HD_FIELD_H
+#define HD_FIELD_H
+
+#include "pxr/pxr.h"
+#include "pxr/imaging/hd/api.h"
+#include "pxr/imaging/hd/version.h"
+#include "pxr/imaging/hd/bprim.h"
+
+#include <boost/shared_ptr.hpp>
+
+#include <vector>
+
+PXR_NAMESPACE_OPEN_SCOPE
+
+class HdSceneDelegate;
+typedef boost::shared_ptr<class HdField> HdFieldSharedPtr;
+typedef std::vector<class HdField const *> HdFieldPtrConstVector;
+
+/// \class HdField
+///
+/// Hydra schema for a USD field primitive. Acts like a texture, combined
+/// with other fields to make up a renderable volume.
+///
+class HdField : public HdBprim {
+public:
+    HD_API
+    HdField(SdfPath const & id);
+    HD_API
+    virtual ~HdField();
+
+    // Change tracking for HdField
+    enum DirtyBits : HdDirtyBits {
+        Clean                 = 0,
+        DirtyTransform        = 1 << 0,
+        DirtyParams           = 1 << 1,
+        AllDirty              = (DirtyTransform
+                                 |DirtyParams)
+    };
+};
+
+PXR_NAMESPACE_CLOSE_SCOPE
+
+#endif  // HD_FIELD_H

pxr/imaging/lib/hd/sceneDelegate.cpp

@@ -368,6 +368,17 @@ HdSceneDelegate::GetClipPlanes(SdfPath const& cameraId)
     return std::vector<GfVec4d>();
 }
 
+// -----------------------------------------------------------------------//
+/// \name Volume Aspects
+// -----------------------------------------------------------------------//
+
+/*virtual*/
+HdVolumeFieldDescriptorVector
+HdSceneDelegate::GetVolumeFieldDescriptors(SdfPath const &volumeId)
+{
+    return HdVolumeFieldDescriptorVector();
+}
+
 // -----------------------------------------------------------------------//
 /// \name ExtComputation Aspects
 // -----------------------------------------------------------------------//

pxr/imaging/lib/hd/sceneDelegate.h

@@ -250,6 +250,27 @@ struct HdRenderBufferDescriptor {
     bool multiSampled;
 };
 
+/// \struct HdVolumeFieldDescriptor
+///
+/// Description of a single field related to a volume primitive.
+///
+struct HdVolumeFieldDescriptor {
+    TfToken fieldName;
+    TfToken fieldPrimType;
+    SdfPath fieldId;
+
+    HdVolumeFieldDescriptor() {}
+    HdVolumeFieldDescriptor(
+        TfToken const & fieldName_,
+        TfToken const & fieldPrimType_,
+        SdfPath const & fieldId_)
+    : fieldName(fieldName_), fieldPrimType(fieldPrimType_), fieldId(fieldId_)
+    { }
+};
+
+typedef std::vector<HdVolumeFieldDescriptor>
+	HdVolumeFieldDescriptorVector;
+
 /// \class HdSceneDelegate
 ///
 /// Adapter class providing data exchange with the client scene graph.
@@ -556,6 +577,14 @@ class HdSceneDelegate {
     HD_API
     virtual std::vector<GfVec4d> GetClipPlanes(SdfPath const& cameraId);
 
+    // -----------------------------------------------------------------------//
+    /// \name Volume Aspects
+    // -----------------------------------------------------------------------//
+
+    HD_API
+    virtual HdVolumeFieldDescriptorVector
+    GetVolumeFieldDescriptors(SdfPath const &volumeId);
+
     // -----------------------------------------------------------------------//
     /// \name ExtComputation Aspects
     // -----------------------------------------------------------------------//

pxr/imaging/lib/hd/tokens.h

@@ -206,6 +206,7 @@ PXR_NAMESPACE_OPEN_SCOPE
     (mesh)                                      \
     (basisCurves)                               \
     (points)                                    \
+    (volume)                                    \
                                                 \
     /* Sprims */                                \
     (camera)                                    \
@@ -224,7 +225,9 @@ PXR_NAMESPACE_OPEN_SCOPE
                                                 \
     /* Bprims */                                \
     (texture)                                   \
-    (renderBuffer)
+    (renderBuffer)				\
+    (openvdbAsset)				\
+    (field3dAsset)
 
 #define HD_PRIMVAR_ROLE_TOKENS                  \
     ((none, ""))                                \

pxr/imaging/lib/hd/volume.cpp

@@ -0,0 +1,38 @@
+//
+// Copyright 2018 Pixar
+//
+// Licensed under the Apache License, Version 2.0 (the "Apache License")
+// with the following modification; you may not use this file except in
+// compliance with the Apache License and the following modification to it:
+// Section 6. Trademarks. is deleted and replaced with:
+//
+// 6. Trademarks. This License does not grant permission to use the trade
+//    names, trademarks, service marks, or product names of the Licensor
+//    and its affiliates, except as required to comply with Section 4(c) of
+//    the License and to reproduce the content of the NOTICE file.
+//
+// You may obtain a copy of the Apache License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the Apache License with the above modification is
+// distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+// KIND, either express or implied. See the Apache License for the specific
+// language governing permissions and limitations under the Apache License.
+//
+#include "pxr/imaging/hd/volume.h"
+
+PXR_NAMESPACE_OPEN_SCOPE
+
+HdVolume::HdVolume(SdfPath const &id,
+                   SdfPath const& instancerId)
+ : HdRprim(id, instancerId)
+{
+}
+
+HdVolume::~HdVolume()
+{
+}
+
+PXR_NAMESPACE_CLOSE_SCOPE

pxr/imaging/lib/hd/volume.h

@@ -0,0 +1,57 @@
+//
+// Copyright 2018 Pixar
+//
+// Licensed under the Apache License, Version 2.0 (the "Apache License")
+// with the following modification; you may not use this file except in
+// compliance with the Apache License and the following modification to it:
+// Section 6. Trademarks. is deleted and replaced with:
+//
+// 6. Trademarks. This License does not grant permission to use the trade
+//    names, trademarks, service marks, or product names of the Licensor
+//    and its affiliates, except as required to comply with Section 4(c) of
+//    the License and to reproduce the content of the NOTICE file.
+//
+// You may obtain a copy of the Apache License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the Apache License with the above modification is
+// distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+// KIND, either express or implied. See the Apache License for the specific
+// language governing permissions and limitations under the Apache License.
+//
+#ifndef HD_VOLUME_H
+#define HD_VOLUME_H
+
+#include "pxr/pxr.h"
+#include "pxr/imaging/hd/api.h"
+#include "pxr/imaging/hd/version.h"
+#include "pxr/imaging/hd/rprim.h"
+
+#include <boost/shared_ptr.hpp>
+
+#include <vector>
+
+PXR_NAMESPACE_OPEN_SCOPE
+
+class HdSceneDelegate;
+typedef boost::shared_ptr<class HdVolume> HdVolumeSharedPtr;
+typedef std::vector<class HdVolume const *> HdVolumePtrConstVector;
+
+/// \class HdVolume
+///
+/// Hd schema for a renderable volume primitive.
+///
+class HdVolume : public HdRprim {
+public:
+    HD_API
+    HdVolume(SdfPath const & id,
+             SdfPath const& instancerId = SdfPath());
+    HD_API
+    virtual ~HdVolume();
+};
+
+PXR_NAMESPACE_CLOSE_SCOPE
+
+#endif  // HD_VOLUME_H

pxr/usd/lib/CMakeLists.txt

@@ -7,6 +7,7 @@ set(DIRS
     pcp
     usd
     usdGeom
+    usdVol
     usdLux
     usdShade
     usdHydra

pxr/usd/lib/usdVol/CMakeLists.txt

@@ -0,0 +1,42 @@
+set(PXR_PREFIX pxr/usd)
+set(PXR_PACKAGE usdVol)
+
+pxr_library(usdVol
+
+    LIBRARIES
+        tf
+        usd
+        usdGeom
+
+    PUBLIC_CLASSES
+        volume
+	fieldBase
+	fieldAsset
+	field3DAsset
+	openVDBAsset
+	tokens
+
+    PUBLIC_HEADERS
+        api.h
+
+    PYTHON_CPPFILES
+        moduleDeps.cpp
+
+    PYMODULE_CPPFILES
+        module.cpp
+        wrapVolume.cpp
+	wrapFieldBase.cpp
+	wrapFieldAsset.cpp
+	wrapField3DAsset.cpp
+	wrapOpenVDBAsset.cpp
+	wrapTokens.cpp
+
+    PYMODULE_FILES
+        __init__.py
+
+    RESOURCE_FILES
+        generatedSchema.usda
+        plugInfo.json
+        schema.usda:usdVol/schema.usda
+)
+

pxr/usd/lib/usdVol/__init__.py

@@ -0,0 +1,40 @@
+#
+# Copyright 2018 Pixar
+#
+# Licensed under the Apache License, Version 2.0 (the "Apache License")
+# with the following modification; you may not use this file except in
+# compliance with the Apache License and the following modification to it:
+# Section 6. Trademarks. is deleted and replaced with:
+#
+# 6. Trademarks. This License does not grant permission to use the trade
+#    names, trademarks, service marks, or product names of the Licensor
+#    and its affiliates, except as required to comply with Section 4(c) of
+#    the License and to reproduce the content of the NOTICE file.
+#
+# You may obtain a copy of the Apache License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the Apache License with the above modification is
+# distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied. See the Apache License for the specific
+# language governing permissions and limitations under the Apache License.
+#
+import _usdVol
+from pxr import Tf
+Tf.PrepareModule(_usdVol, locals())
+del Tf
+
+try:
+    import __DOC
+    __DOC.Execute(locals())
+    del __DOC
+except Exception:
+    try:
+        import __tmpDoc
+        __tmpDoc.Execute(locals())
+        del __tmpDoc
+    except:
+        pass
+