//-*****************************************************************************
M44d getFinalMatrix( IObject &iObj )
{
M44d xf;
xf.makeIdentity();
IObject parent = iObj.getParent();
while ( parent )
{
accumXform( xf, parent );
parent = parent.getParent();
}
return xf;
}
void FrustumFieldMapping::reset()
{
// Default camera to world ---
M44d csToWs;
csToWs.makeIdentity();
// Default screen to world ---
double near = 1;
double far = 2;
double fovRadians = 45.0 * M_PI / 180.0;
double invTan = 1.0 / std::tan(fovRadians / 2.0);
double imageAspectRatio = 1.0;
M44d perspective(1, 0, 0, 0,
0, 1, 0, 0,
0, 0, (far) / (far - near), 1,
0, 0, (- far * near) / (far - near), 0);
M44d fov;
fov.setScale(V3d(invTan / imageAspectRatio, invTan, 1.0));
M44d flipZ;
flipZ.setScale(V3d(1.0, 1.0, -1.0));
M44d csToSs = flipZ * perspective * fov;
M44d standardSsToWs = csToSs.inverse() * csToWs;
// Set default state ---
clearCurves();
setTransforms(standardSsToWs, csToWs);
m_defaultState = true;
computeVoxelSize();
}
//-*****************************************************************************
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 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;
}
}
