//-*****************************************************************************
void xformTreeCreate()
{
OArchive archive( Alembic::AbcCoreOgawa::WriteArchive(), "Xform_tree.abc" );
std::vector<OXform> xforms;
OObject root( archive, kTop);
recurseCreateXform( root, 4, 4, xforms );
std::cout << "Total xforms created " << xforms.size() << std::endl;
XformSample samp;
XformOp transop( kTranslateOperation, kTranslateHint );
XformOp rotatop( kRotateOperation, kRotateHint );
XformOp scaleop( kScaleOperation, kScaleHint );
samp.addOp( transop, V3d(42.0, 42.0, 42.0) );
samp.addOp( rotatop, V3d(0.0, 0.0, 1.0), 10.0 );
samp.addOp( rotatop, V3d(0.0, 1.0, 0.0), 20.0 );
samp.addOp( rotatop, V3d(1.0, 0.0, 0.0), 30.0 );
samp.addOp( scaleop, V3d(4.0, 4.0, 4.0) );
for (std::vector<OXform>::iterator i = xforms.begin(); i != xforms.end();
++i)
{
i->getSchema().set(samp);
}
}
//-*****************************************************************************
void recurseCreateXform(OObject & iParent, int children, int level,
std::vector<OXform> & oCreated)
{
for (int i = 0; i < children; ++i)
{
std::ostringstream strm;
strm << "level" << "_" << i;
std::string xformName = strm.str();
OXform xform( iParent, xformName );
XformSample samp;
XformOp transop( kTranslateOperation, kTranslateHint );
XformOp rotatop( kRotateOperation, kRotateHint );
XformOp scaleop( kScaleOperation, kScaleHint );
samp.addOp( transop, V3d(0.0, 0.0, 0.0) );
samp.addOp( rotatop, V3d(0.0, 0.0, 1.0), 0.0 );
samp.addOp( rotatop, V3d(0.0, 1.0, 0.0), 0.0 );
samp.addOp( rotatop, V3d(1.0, 0.0, 0.0), 0.0 );
samp.addOp( scaleop, V3d(1.0, 1.0, 1.0) );
xform.getSchema().set(samp);
oCreated.push_back( xform );
if ( level > 0 )
{
recurseCreateXform( xform, children, level - 1, oCreated );
}
}
}
//-*****************************************************************************
void OWrapExisting()
{
Alembic::Abc::OArchive archive(
Alembic::AbcCoreHDF5::WriteArchive(),
"playground_owrap.abc"
);
Alembic::Abc::OObject archiveTop = archive.getTop();
Alembic::Util::shared_ptr< Alembic::Abc::OObject > objAPtr =
makeXform( archiveTop );
Alembic::Util::shared_ptr< Alembic::Abc::OObject > objBPtr =
subdCube( *objAPtr );
//
// NOW THE FUN BEGINS
//
TESTING_ASSERT( Alembic::AbcGeom::OSubD::matches( objBPtr->getHeader() ) );
{
Alembic::Util::shared_ptr< Alembic::AbcGeom::OSubD > subdObjPtr =
Alembic::Util::dynamic_pointer_cast< Alembic::AbcGeom::OSubD >
( objBPtr );
Alembic::AbcGeom::OSubD subdObj = *subdObjPtr;
std::cout << "wrapped-existing subd has "
<< subdObj.getSchema().getNumSamples() << " num samples."
<< std::endl;
std::vector<V3f> verts( 8, V3f(2.0, 2.0, 2.0 ) );
Alembic::AbcGeom::OSubDSchema::Sample sample;
sample.setPositions( Alembic::Abc::V3fArraySample( &(verts[0]),
verts.size() ) );
subdObj.getSchema().set( sample );
TESTING_ASSERT( subdObj.getSchema().getNumSamples() == 2 );
}
TESTING_ASSERT( Alembic::AbcGeom::OXform::matches( objAPtr->getHeader() ) );
{
XformOp transop( kTranslateOperation, kTranslateHint );
XformOp scaleop( kScaleOperation, kScaleHint );
XformSample samp;
samp.addOp( transop, V3d( 4.0, 5.0, 6.0 ) );
samp.addOp( scaleop, V3d( 8.0, 10.0, 12.0 ) );
Alembic::Util::shared_ptr< Alembic::AbcGeom::OXform > xformObjPtr =
Alembic::Util::dynamic_pointer_cast< Alembic::AbcGeom::OXform >
( objAPtr );
Alembic::AbcGeom::OXform xformObj = *xformObjPtr;
xformObj.getSchema().set( samp );
TESTING_ASSERT( xformObj.getSchema().getNumSamples() == 2 );
}
}
Imath::M44d AlembicInput::transformAtTime( double time ) const
{
M44d result;
if( IXform::matches( m_data->object.getMetaData() ) )
{
size_t index0, index1;
double lerpFactor = sampleIntervalAtTime( time, index0, index1 );
IXform iXForm( m_data->object, kWrapExisting );
IXformSchema &iXFormSchema = iXForm.getSchema();
if( index0 == index1 )
{
XformSample sample;
iXFormSchema.get( sample, ISampleSelector( (index_t)index0 ) );
result = sample.getMatrix();
}
else
{
XformSample sample0;
iXFormSchema.get( sample0, ISampleSelector( (index_t)index0 ) );
XformSample sample1;
iXFormSchema.get( sample1, ISampleSelector( (index_t)index1 ) );
if( sample0.getNumOps() != sample1.getNumOps() ||
sample0.getNumOpChannels() != sample1.getNumOpChannels()
)
{
throw IECore::Exception( "Unable to interpolate samples of different sizes" );
}
XformSample interpolatedSample;
for( size_t opIndex = 0; opIndex < sample0.getNumOps(); opIndex++ )
{
XformOp op0 = sample0.getOp( opIndex );
XformOp op1 = sample1.getOp( opIndex );
XformOp interpolatedOp( op0.getType(), op0.getHint() );
for( size_t channelIndex = 0; channelIndex < op0.getNumChannels(); channelIndex++ )
{
interpolatedOp.setChannelValue(
channelIndex,
lerp( op0.getChannelValue( channelIndex ), op1.getChannelValue( channelIndex ), lerpFactor )
);
}
interpolatedSample.addOp( interpolatedOp );
}
result = interpolatedSample.getMatrix();
}
}
return result;
}
//-*****************************************************************************
Alembic::Util::shared_ptr< Alembic::Abc::OObject >
makeXform( Alembic::Abc::OObject & parent )
{
Alembic::Util::shared_ptr< Alembic::AbcGeom::OXform > xformObjPtr
( new Alembic::AbcGeom::OXform( parent, "myXform" ) );
// add a couple of ops
XformOp transop( kTranslateOperation, kTranslateHint );
XformOp scaleop( kScaleOperation, kScaleHint );
XformSample samp;
samp.addOp( transop, V3d( 1.0, 2.0, 3.0 ) );
samp.addOp( scaleop, V3d( 2.0, 4.0, 6.0 ) );
Alembic::AbcGeom::OXformSchema &schema = xformObjPtr->getSchema();
schema.set( samp );
return xformObjPtr;
}
//-*****************************************************************************
void xformOut()
{
OArchive archive( Alembic::AbcCoreOgawa::WriteArchive(), "Xform1.abc" );
OXform a( OObject( archive, kTop ), "a" );
OXform b( a, "b" );
OXform c( b, "c" );
OXform d( c, "d" );
OXform e( d, "e" );
OXform f( e, "f" );
OXform g( f, "g" );
XformOp transop( kTranslateOperation, kTranslateHint );
XformOp scaleop( kScaleOperation, kScaleHint );
XformOp matrixop( kMatrixOperation, kMatrixHint );
TESTING_ASSERT( a.getSchema().getNumSamples() == 0 );
OBox3dProperty childBounds = a.getSchema().getChildBoundsProperty();
XformSample asamp;
for ( size_t i = 0; i < 20; ++i )
{
asamp.addOp( transop, V3d( 12.0, i + 42.0, 20.0 ) );
if ( i >= 18 )
{
childBounds.set( Abc::Box3d( V3d( -1.0, -1.0, -1.0 ),
V3d( 1.0, 1.0, 1.0 ) ) );
}
else
{
childBounds.set( Abc::Box3d() );
}
a.getSchema().set( asamp );
}
XformSample bsamp;
for ( size_t i = 0 ; i < 20 ; ++i )
{
bsamp.setInheritsXforms( (bool)(i&1) );
b.getSchema().set( bsamp );
}
// for c we write nothing
XformSample dsamp;
dsamp.addOp( scaleop, V3d( 3.0, 6.0, 9.0 ) );
d.getSchema().set( dsamp );
XformSample esamp;
M44d identmat;
identmat.makeIdentity();
esamp.addOp( transop, V3d( 0.0, 0.0, 0.0 ) );
esamp.addOp( XformOp( kMatrixOperation, kMatrixHint ), identmat );
esamp.addOp( scaleop, V3d( 1.0, 1.0, 1.0 ) );
e.getSchema().set( esamp );
XformSample fsamp;
fsamp.addOp( transop, V3d( 3.0, -4.0, 5.0 ) );
f.getSchema().set( fsamp );
// this will cause the Xform's values property to be an ArrayProperty,
// since there will be 20 * 16 channels.
XformSample gsamp;
Abc::M44d gmatrix;
gmatrix.makeIdentity();
for ( size_t i = 0 ; i < 20 ; ++i )
{
gmatrix.x[0][1] = (double)i;
gsamp.addOp( matrixop, gmatrix );
}
g.getSchema().set( gsamp );
}
//-*****************************************************************************
void sparseTest()
{
XformOp transOp( kTranslateOperation, kTranslateHint );
XformOp scaleOp( kScaleOperation, kScaleHint );
std::string nameA = "sparseXformTestA.abc";
{
OArchive archive( Alembic::AbcCoreOgawa::WriteArchive(), nameA );
OXform transStatic( OObject( archive ), "transStatic" );
XformSample asamp;
asamp.addOp( scaleOp, V3d( 2.0, 1.0, 2.0 ) );
transStatic.getSchema().set( asamp );
OXform transAnim( transStatic, "transAnim" );
XformSample bsamp;
bsamp.addOp( transOp, V3d( 3.0, 4.0, 5.0 ) );
transAnim.getSchema().set( bsamp );
bsamp[0].setTranslate( V3d( 4.0, 5.0, 6.0 ) );
transAnim.getSchema().set( bsamp );
OXform identA( transAnim, "ident" );
OXform identB( identA, "ident" );
OXform transStatic2( identB, "transStatic" );
transStatic2.getSchema().set( asamp );
OXform transAnim2( transStatic2, "transAnim" );
transAnim2.getSchema().set( bsamp );
bsamp[0].setTranslate( V3d( 5.0, 6.0, 7.0 ) );
transAnim.getSchema().set( bsamp );
}
std::string nameB = "sparseXformTestB.abc";
{
OArchive archive( Alembic::AbcCoreOgawa::WriteArchive(), nameB );
// set this now as animated translate
OXform transStatic( OObject( archive ), "transStatic", kSparse );
XformSample asamp;
asamp.addOp( transOp, V3d( 1.0, 1.0, 1.0) );
transStatic.getSchema().set( asamp );
asamp[0].setTranslate( V3d( 2.0, 2.0, 2.0 ) );
transStatic.getSchema().set( asamp );
// this one will be static
OXform transAnim( transStatic, "transAnim", kSparse );
XformSample bsamp;
bsamp.addOp( scaleOp, V3d( 0.5, 0.5, 0.5 ) );
transAnim.getSchema().set( bsamp );
// from identity to static
OXform identA( transAnim, "ident", kSparse );
identA.getSchema().set( bsamp );
// from identity to animated
OXform identB( identA, "ident", kSparse );
identB.getSchema().set( asamp );
asamp[0].setTranslate( V3d( 3.0, 3.0, 3.0 ) );
identB.getSchema().set( asamp );
// don't set anything on these so they will be identity
OXform transStatic2( identB, "transStatic", kSparse );
OXform transAnim2( transStatic2, "transAnim", kSparse );
}
{
std::vector< std::string > names;
names.push_back( nameA );
names.push_back( nameB );
Alembic::AbcCoreFactory::IFactory factory;
IArchive archive = factory.getArchive( names );
IXform transStatic( IObject( archive ), "transStatic" );
TESTING_ASSERT( !transStatic.getSchema().isConstantIdentity() );
TESTING_ASSERT( !transStatic.getSchema().isConstant() );
IXform transAnim( transStatic, "transAnim" );
TESTING_ASSERT( !transAnim.getSchema().isConstantIdentity() );
TESTING_ASSERT( transAnim.getSchema().isConstant() );
IXform identA( transAnim, "ident" );
TESTING_ASSERT( !identA.getSchema().isConstantIdentity() );
TESTING_ASSERT( identA.getSchema().isConstant() );
IXform identB( identA, "ident");
TESTING_ASSERT( !identB.getSchema().isConstantIdentity() );
TESTING_ASSERT( !identB.getSchema().isConstant() );
IXform transStatic2( identB, "transStatic" );
TESTING_ASSERT( transStatic2.getSchema().isConstantIdentity() );
IXform transAnim2( transStatic2, "transAnim" );
TESTING_ASSERT( transAnim2.getSchema().isConstantIdentity() );
}
}
//-*****************************************************************************
void someOpsXform()
{
std::string name = "someOpsXform.abc";
{
OArchive archive( Alembic::AbcCoreOgawa::WriteArchive(), name );
OXform a( OObject( archive, kTop ), "a" );
OBox3dProperty bnds = CreateOArchiveBounds( archive );
XformOp transop( kTranslateOperation, kTranslateHint );
XformOp scaleop( kScaleOperation, kScaleHint );
XformSample asamp;
// scale
asamp.addOp( scaleop, V3d( 2.0, 1.0, 2.0 ) );
// Maya-like shear
XformOp shearmatrixop( kMatrixOperation, kMayaShearHint );
M44d shearmat;
shearmat.makeIdentity();
asamp.addOp( shearmatrixop, shearmat );
// rotate x axis
XformOp rotop( kRotateOperation, kRotateHint );
asamp.addOp( rotop, V3d( 1.0, 0.0, 0.0 ), 1.57 );
// rotate y axis, angle will be animated
asamp.addOp( rotop, V3d( 0.0, 1.0, 0.0 ), 0.125 );
// rotate z axis, use a different hint for fun
XformOp rotorientop( kRotateOperation, kRotateOrientationHint );
asamp.addOp( rotorientop, V3d( 0.0, 0.0, 1.0 ), 0.1 );
// translate with animated y and z, different hint for fun
XformOp transpivotop( kTranslateOperation, kRotatePivotPointHint );
asamp.addOp( transpivotop, V3d( 0.0, 0.0, 0.0 ) );
a.getSchema().set( asamp );
bnds.set( Box3d( V3d( -0.1, -0.1, -0.1 ),
V3d( 0.1, 0.1, 0.1 ) ) );
for (size_t i = 1; i < 5 ; ++i)
{
asamp.addOp( scaleop, V3d( 2 * ( i + 1 ),
1.0, 2.0 ) );
shearmat.x[1][0] = (double)i;
shearmat.x[2][0] = (double)( (int)i * -1.0 );
shearmat.x[2][1] = 0.0;
asamp.addOp( shearmatrixop, shearmat );
asamp.addOp( rotop, V3d( 1.0, 0.0, 0.0 ),
1.57 );
asamp.addOp( rotop, V3d( 0.0, 1.0, 0.0 ),
0.125 * ( i + 1 ) );
asamp.addOp( rotorientop, V3d( 0.0, 0.0, 1.0 ),
0.1 * ( i + 1 ) );
asamp.addOp( transpivotop, V3d( 0.0, 3.0 * i, 4.0 * i ) );
a.getSchema().set( asamp );
double iVal = static_cast< double >( i );
bnds.set( Box3d( V3d( -iVal, -iVal, -iVal ),
V3d( iVal, iVal, iVal ) ) );
}
}
{
IArchive archive( Alembic::AbcCoreOgawa::ReadArchive(), name );
IXform a( IObject( archive, kTop ), "a" );
IBox3dProperty bnds = GetIArchiveBounds( archive );
XformSample asamp;
a.getSchema().get( asamp );
TESTING_ASSERT( a.getSchema().getNumOps() == 6 );
TESTING_ASSERT( asamp[0].isScaleOp() );
TESTING_ASSERT( asamp[0].getHint() == kScaleHint );
TESTING_ASSERT( asamp[1].isMatrixOp() );
TESTING_ASSERT( asamp[1].getHint() == kMayaShearHint );
TESTING_ASSERT( asamp[2].isRotateOp() );
TESTING_ASSERT( asamp[2].getHint() == kRotateHint );
TESTING_ASSERT( asamp[3].getType() == kRotateOperation );
TESTING_ASSERT( asamp[3].getHint() == kRotateHint );
TESTING_ASSERT( asamp[4].getType() == kRotateOperation );
TESTING_ASSERT( asamp[4].getHint() == kRotateOrientationHint );
TESTING_ASSERT( asamp[5].getType() == kTranslateOperation );
TESTING_ASSERT( asamp[5].getHint() == kRotatePivotPointHint );
TESTING_ASSERT( asamp[0].isXAnimated() );
TESTING_ASSERT( !asamp[0].isYAnimated() );
TESTING_ASSERT( !asamp[0].isZAnimated() );
TESTING_ASSERT( !asamp[1].isChannelAnimated(0) ); // [0][0]
TESTING_ASSERT( !asamp[1].isChannelAnimated(1) ); // [0][1]
TESTING_ASSERT( !asamp[1].isChannelAnimated(2) ); // [0][2]
TESTING_ASSERT( !asamp[1].isChannelAnimated(3) ); // [0][3]
TESTING_ASSERT( asamp[1].isChannelAnimated(4) ); // [1][0]
TESTING_ASSERT( !asamp[1].isChannelAnimated(5) ); // [1][1]
TESTING_ASSERT( !asamp[1].isChannelAnimated(6) ); // [1][2]
TESTING_ASSERT( !asamp[1].isChannelAnimated(7) ); // [1][3]
TESTING_ASSERT( asamp[1].isChannelAnimated(8) ); // [2][0]
TESTING_ASSERT( !asamp[1].isChannelAnimated(9) ); // [2][1]
TESTING_ASSERT( !asamp[1].isChannelAnimated(10) ); // [2][2]
TESTING_ASSERT( !asamp[1].isChannelAnimated(11) ); // [2][3]
TESTING_ASSERT( !asamp[1].isChannelAnimated(12) ); // [3][0]
TESTING_ASSERT( !asamp[1].isChannelAnimated(13) ); // [3][1]
TESTING_ASSERT( !asamp[1].isChannelAnimated(14) ); // [3][2]
TESTING_ASSERT( !asamp[1].isChannelAnimated(15) ); // [3][3]
TESTING_ASSERT( !asamp[2].isXAnimated() );
TESTING_ASSERT( !asamp[2].isYAnimated() );
TESTING_ASSERT( !asamp[2].isZAnimated() );
TESTING_ASSERT( !asamp[2].isAngleAnimated() );
TESTING_ASSERT( !asamp[3].isXAnimated() );
TESTING_ASSERT( !asamp[3].isYAnimated() );
TESTING_ASSERT( !asamp[3].isZAnimated() );
TESTING_ASSERT( asamp[3].isAngleAnimated() );
TESTING_ASSERT( !asamp[4].isXAnimated() );
TESTING_ASSERT( !asamp[4].isYAnimated() );
TESTING_ASSERT( !asamp[4].isZAnimated() );
TESTING_ASSERT( asamp[4].isAngleAnimated() );
TESTING_ASSERT( !asamp[5].isXAnimated() );
TESTING_ASSERT( asamp[5].isYAnimated() );
TESTING_ASSERT( asamp[5].isZAnimated() );
// OK, now check the values came through
M44d shearmat;
shearmat.makeIdentity();
TESTING_ASSERT( asamp[0].getScale() == V3d( 2.0, 1.0, 2.0 ) );
TESTING_ASSERT( asamp[1].getMatrix() == shearmat );
TESTING_ASSERT( asamp[2].getAxis() == V3d( 1.0, 0.0, 0.0 ) );
TESTING_ASSERT( almostEqual( asamp[2].getAngle(), 1.57 ) );
TESTING_ASSERT( asamp[3].getAxis() == V3d( 0.0, 1.0, 0.0 ) );
TESTING_ASSERT( almostEqual( asamp[3].getAngle(), 0.125 ) );
TESTING_ASSERT( asamp[4].getAxis() == V3d( 0.0, 0.0, 1.0 ) );
TESTING_ASSERT( almostEqual( asamp[4].getAngle(), 0.1 ) );
TESTING_ASSERT( asamp[5].getTranslate() == V3d( 0.0, 0.0, 0.0 ) );
TESTING_ASSERT( bnds.getValue() == Box3d( V3d( -0.1, -0.1, -0.1 ),
V3d( 0.1, 0.1, 0.1 ) ) );
for ( index_t i = 1; i < 5 ; ++i )
{
a.getSchema().get( asamp, ISampleSelector( i ) );
TESTING_ASSERT( asamp[0].getScale()
== V3d( 2 * ( i + 1 ), 1.0, 2.0 ) );
shearmat.x[1][0] = (double)i;
shearmat.x[2][0] = (double)( (int)i * -1.0 );
shearmat.x[2][1] = 0.0;
TESTING_ASSERT( asamp[1].getMatrix() == shearmat );
TESTING_ASSERT( asamp[2].getAxis() == V3d( 1.0, 0.0, 0.0 ) );
TESTING_ASSERT( almostEqual( asamp[2].getAngle(), 1.57 ) );
TESTING_ASSERT( asamp[3].getAxis() == V3d( 0.0, 1.0, 0.0 ) );
TESTING_ASSERT( almostEqual( asamp[3].getAngle(),
0.125 * ( i + 1 ) ) );
TESTING_ASSERT( asamp[4].getAxis() == V3d( 0.0, 0.0, 1.0 ) );
TESTING_ASSERT( almostEqual( asamp[4].getAngle(),
0.1 * ( i + 1 ) ) );
V3d tvec( 0.0, 3.0 * i, 4.0 * i );
TESTING_ASSERT( tvec.equalWithAbsError( asamp[5].getTranslate(),
VAL_EPSILON ) );
Box3d b = bnds.getValue( ISampleSelector( i ) );
double iVal = static_cast< double >( i );
TESTING_ASSERT( b == Box3d( V3d( -iVal, -iVal, -iVal ),
V3d( iVal, iVal, iVal ) ) );
}
std::cout << "tested all xforms in " << name << std::endl;
}
}
