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UnrealEngine/Engine/Source/ThirdParty/Alembic/alembic-1.8.7/prman/Procedural/ProcMain.cpp
Brandyn / Techy fcc1b09210 init
2026-04-04 15:40:51 -05:00

367 lines
10 KiB
C++

//-*****************************************************************************
//
// Copyright (c) 2009-2013,
// Sony Pictures Imageworks Inc. and
// Industrial Light & Magic, a division of Lucasfilm Entertainment Company Ltd.
//
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Sony Pictures Imageworks, nor
// Industrial Light & Magic, nor the names of their contributors may be used
// to endorse or promote products derived from this software without specific
// prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
//-*****************************************************************************
#include <iostream>
#include <set>
#include <ri.h>
#include <Alembic/AbcGeom/All.h>
#include <Alembic/AbcCoreHDF5/All.h>
#include <Alembic/AbcCoreOgawa/All.h>
#include <Alembic/AbcCoreFactory/All.h>
#include "ProcArgs.h"
#include "PathUtil.h"
#include "WriteGeo.h"
#ifdef PRMAN_USE_ABCMATERIAL
#include "WriteMaterial.h"
#endif
#include <memory>
using namespace Alembic::AbcGeom;
//-*****************************************************************************
class AttributeBlockHelper
{
public:
AttributeBlockHelper( const ObjectHeader &ohead )
{
RiAttributeBegin();
WriteIdentifier( ohead );
}
~AttributeBlockHelper()
{
RiAttributeEnd();
}
};
typedef std::auto_ptr<AttributeBlockHelper> AttributeBlockHelperAutoPtr;
//-*****************************************************************************
void WalkObject( IObject parent, const ObjectHeader &ohead, ProcArgs &args,
PathList::const_iterator I, PathList::const_iterator E,
bool visible=true)
{
// Only add an enclosing AttributeBegin/name/AttributeEnd if we're
// not excluding xforms. If we're not adding it here, we're adding for
// the individual primitives.
AttributeBlockHelperAutoPtr blockHelper;
if ( !args.excludeXform )
{
blockHelper.reset( new AttributeBlockHelper( ohead ) );
}
//set this if we should continue traversing
IObject nextParentObject;
//construct the baseObject first so that we can perform visibility
//testing on it.
IObject baseObject( parent, ohead.getName() );
switch( GetVisibility(baseObject,
ISampleSelector(args.frame / args.fps ) ) )
{
case kVisibilityVisible:
visible = true;
break;
case kVisibilityHidden:
visible = false;
break;
default:
break;
}
if ( IXform::matches( ohead ) )
{
if ( args.excludeXform )
{
nextParentObject = IObject( parent, ohead.getName() );
}
else
{
IXform xform( baseObject, kWrapExisting );
ProcessXform( xform, args );
nextParentObject = xform;
ApplyResources( nextParentObject, args );
#ifdef PRMAN_USE_ABCMATERIAL
ApplyObjectMaterial(nextParentObject, args );
#endif
}
}
else if ( ISubD::matches( ohead ) )
{
if ( !blockHelper.get() )
{
blockHelper.reset( new AttributeBlockHelper( ohead ) );
}
std::string faceSetName;
ISubD subd( baseObject, kWrapExisting );
//if we haven't reached the end of a specified -objectpath,
//check to see if the next token is a faceset name.
//If it is, send the name to ProcessSubD for addition of
//"hole" tags for the non-matching faces
if ( I != E )
{
if ( subd.getSchema().hasFaceSet( *I ) )
{
faceSetName = *I;
}
}
ApplyResources( subd, args );
#ifdef PRMAN_USE_ABCMATERIAL
ApplyObjectMaterial(subd, args );
#endif
if ( visible )
{
ProcessSubD( subd, args, faceSetName );
}
//if we found a matching faceset, don't traverse below
if ( faceSetName.empty() )
{
nextParentObject = subd;
}
}
else if ( IPolyMesh::matches( ohead ) )
{
if ( !blockHelper.get() )
{
blockHelper.reset( new AttributeBlockHelper( ohead ) );
}
IPolyMesh polymesh( baseObject, kWrapExisting );
ApplyResources( polymesh, args );
#ifdef PRMAN_USE_ABCMATERIAL
ApplyObjectMaterial(polymesh, args );
#endif
if ( visible )
{
ProcessPolyMesh( polymesh, args );
}
nextParentObject = polymesh;
}
else if ( INuPatch::matches( ohead ) )
{
if ( !blockHelper.get() )
{
blockHelper.reset( new AttributeBlockHelper( ohead ) );
}
INuPatch patch( baseObject, kWrapExisting );
ApplyResources( patch, args );
#ifdef PRMAN_USE_ABCMATERIAL
ApplyObjectMaterial(patch, args );
#endif
if ( visible )
{
ProcessNuPatch( patch, args );
}
nextParentObject = patch;
}
else if ( IPoints::matches( ohead ) )
{
if ( !blockHelper.get() )
{
blockHelper.reset( new AttributeBlockHelper( ohead ) );
}
IPoints points( baseObject, kWrapExisting );
#ifdef PRMAN_USE_ABCMATERIAL
ApplyObjectMaterial(points, args );
#endif
ApplyResources( points, args );
if ( visible )
{
ProcessPoints( points, args );
}
nextParentObject = points;
}
else if ( ICurves::matches( ohead ) )
{
if ( !blockHelper.get() )
{
blockHelper.reset( new AttributeBlockHelper( ohead ) );
}
ICurves curves( baseObject, kWrapExisting );
ApplyResources( curves, args );
#ifdef PRMAN_USE_ABCMATERIAL
ApplyObjectMaterial( curves, args );
#endif
if ( visible )
{
ProcessCurves( curves, args );
}
nextParentObject = curves;
}
else if ( IFaceSet::matches( ohead ) )
{
//don't complain about discovering a faceset upon traversal
}
else
{
//Don't complain but don't walk beneath other types
}
if ( nextParentObject.valid() )
{
if ( I == E )
{
for ( size_t i = 0; i < nextParentObject.getNumChildren() ; ++i )
{
WalkObject( nextParentObject,
nextParentObject.getChildHeader( i ),
args, I, E, visible);
}
}
else
{
const ObjectHeader *nextChildHeader =
nextParentObject.getChildHeader( *I );
if ( nextChildHeader != NULL )
{
WalkObject( nextParentObject, *nextChildHeader, args, I+1, E,
visible);
}
}
}
// RiAttributeEnd will be called by blockHelper falling out of scope
// if set.
}
//-*****************************************************************************
extern "C" ALEMBIC_EXPORT RtPointer
ConvertParameters( RtString paramstr )
{
try
{
return (RtPointer) new ProcArgs(paramstr);
}
catch (const std::exception & e)
{
std::cerr << "Exception thrown during ProcMain ConvertParameters: ";
std::cerr << "\"" << paramstr << "\"";
std::cerr << " " << e.what() << std::endl;
return 0;
}
}
//-*****************************************************************************
extern "C" ALEMBIC_EXPORT RtVoid
Free( RtPointer data )
{
delete reinterpret_cast<ProcArgs*>( data );
}
//-*****************************************************************************
extern "C" ALEMBIC_EXPORT RtVoid
Subdivide( RtPointer data, RtFloat detail )
{
ProcArgs *args = reinterpret_cast<ProcArgs*>( data );
if ( !args )
{
return;
}
if ( args->filename.empty() )
{
return;
}
try
{
::Alembic::AbcCoreFactory::IFactory factory;
IArchive archive = factory.getArchive( args->filename );
IObject root = archive.getTop();
PathList path;
TokenizePath( args->objectpath, path );
if ( path.empty() ) //walk the entire scene
{
for ( size_t i = 0; i < root.getNumChildren(); ++i )
{
WalkObject( root, root.getChildHeader(i), *args,
path.end(), path.end() );
}
}
else //walk to a location + its children
{
PathList::const_iterator I = path.begin();
const ObjectHeader *nextChildHeader =
root.getChildHeader( *I );
if ( nextChildHeader != NULL )
{
WalkObject( root, *nextChildHeader, *args, I+1, path.end() );
}
}
}
catch ( const std::exception &e )
{
std::cerr << "exception thrown during ProcMain Subdivide: "
<< e.what() << std::endl;
}
}