void SplinePlugGadget::updateCurve( SplineUIMap::iterator it ) const
{
SplineffPlugPtr splinePlug = IECore::runTimeCast<SplineffPlug>( it->first );
IECore::Splineff spline = splinePlug->getValue();
IECore::Splineff::XInterval interval = spline.interval();
unsigned numPoints = 100;
IECore::V3fVectorDataPtr pd = new IECore::V3fVectorData();
std::vector<V3f> &p = pd->writable();
p.resize( numPoints );
for( unsigned i=0; i<numPoints; i++ )
{
float x = lerp( interval.lower(), interval.upper(), (float)i / (float)(numPoints-1) );
float y = spline( x );
p[i] = V3f( x, y, 0.0f );
}
IECore::IntVectorDataPtr vertsPerCurve = new IECore::IntVectorData;
vertsPerCurve->writable().push_back( numPoints );
IECore::CurvesPrimitivePtr curve = new IECore::CurvesPrimitive(
vertsPerCurve,
IECore::CubicBasisf::linear(),
false,
pd
);
it->second.curve = curve;
}
const Shader::Setup *Primitive::boundSetup() const
{
if( m_boundSetup )
{
return m_boundSetup.get();
}
Box3f b = bound();
IECore::V3fVectorDataPtr pData = new IECore::V3fVectorData();
std::vector<V3f> &p = pData->writable();
p.push_back( V3f( b.min.x, b.min.y, b.min.z ) );
p.push_back( V3f( b.max.x, b.min.y, b.min.z ) );
p.push_back( V3f( b.max.x, b.min.y, b.min.z ) );
p.push_back( V3f( b.max.x, b.max.y, b.min.z ) );
p.push_back( V3f( b.max.x, b.max.y, b.min.z ) );
p.push_back( V3f( b.min.x, b.max.y, b.min.z ) );
p.push_back( V3f( b.min.x, b.max.y, b.min.z ) );
p.push_back( V3f( b.min.x, b.min.y, b.min.z ) );
p.push_back( V3f( b.min.x, b.min.y, b.max.z ) );
p.push_back( V3f( b.max.x, b.min.y, b.max.z ) );
p.push_back( V3f( b.max.x, b.min.y, b.max.z ) );
p.push_back( V3f( b.max.x, b.max.y, b.max.z ) );
p.push_back( V3f( b.max.x, b.max.y, b.max.z ) );
p.push_back( V3f( b.min.x, b.max.y, b.max.z ) );
p.push_back( V3f( b.min.x, b.max.y, b.max.z ) );
p.push_back( V3f( b.min.x, b.min.y, b.max.z ) );
p.push_back( V3f( b.min.x, b.min.y, b.min.z ) );
p.push_back( V3f( b.min.x, b.min.y, b.max.z ) );
p.push_back( V3f( b.max.x, b.min.y, b.min.z ) );
p.push_back( V3f( b.max.x, b.min.y, b.max.z ) );
p.push_back( V3f( b.max.x, b.max.y, b.min.z ) );
p.push_back( V3f( b.max.x, b.max.y, b.max.z ) );
p.push_back( V3f( b.min.x, b.max.y, b.min.z ) );
p.push_back( V3f( b.min.x, b.max.y, b.max.z ) );
m_boundSetup = new Shader::Setup( Shader::constant() );
m_boundSetup->addVertexAttribute( "P", pData );
return m_boundSetup.get();
}
void SceneProcedural::drawLight( const IECore::Light *light, IECore::Renderer *renderer ) const
{
AttributeBlock attributeBlock( renderer );
renderer->setAttribute( "gl:primitive:wireframe", new BoolData( true ) );
renderer->setAttribute( "gl:primitive:solid", new BoolData( false ) );
renderer->setAttribute( "gl:curvesPrimitive:useGLLines", new BoolData( true ) );
renderer->setAttribute( "gl:primitive:wireframeColor", new Color4fData( Color4f( 0.5, 0, 0, 1 ) ) );
const float a = 0.5f;
const float phi = 1.0f + sqrt( 5.0f ) / 2.0f;
const float b = 1.0f / ( 2.0f * phi );
// icosahedron points
IECore::V3fVectorDataPtr pData = new V3fVectorData;
vector<V3f> &p = pData->writable();
p.resize( 24 );
p[0] = V3f( 0, b, -a );
p[2] = V3f( b, a, 0 );
p[4] = V3f( -b, a, 0 );
p[6] = V3f( 0, b, a );
p[8] = V3f( 0, -b, a );
p[10] = V3f( -a, 0, b );
p[12] = V3f( 0, -b, -a );
p[14] = V3f( a, 0, -b );
p[16] = V3f( a, 0, b );
p[18] = V3f( -a, 0, -b );
p[20] = V3f( b, -a, 0 );
p[22] = V3f( -b, -a, 0 );
for( size_t i = 0; i<12; i++ )
{
p[i*2] = 2.0f * p[i*2].normalized();
p[i*2+1] = V3f( 0 );
}
IntVectorDataPtr vertIds = new IntVectorData;
vertIds->writable().resize( 12, 2 );
CurvesPrimitivePtr c = new IECore::CurvesPrimitive( vertIds, CubicBasisf::linear(), false, pData );
c->render( renderer );
}
DiskPrimitive::DiskPrimitive( float radius, float z, float thetaMax )
: m_radius( radius ), m_z( z ), m_thetaMax( thetaMax ), m_nPoints( 0 )
{
// build vertex attributes for P, N and st, and indexes for triangles.
IECore::V3fVectorDataPtr pData = new IECore::V3fVectorData;
IECore::V3fVectorDataPtr nData = new IECore::V3fVectorData;
IECore::V2fVectorDataPtr stData = new IECore::V2fVectorData;
vector<V3f> &pVector = pData->writable();
vector<V3f> &nVector = nData->writable();
vector<V2f> &stVector = stData->writable();
// centre point
pVector.push_back( V3f( 0.0f, 0.0f, m_z ) );
nVector.push_back( V3f( 0.0f, 0.0f, 1.0f ) );
stVector.push_back( V2f( 0.5f, 0.5f ) );
const unsigned int n = 20;
float thetaMaxRadians = m_thetaMax/180.0f * M_PI;
for( unsigned int i=0; i<n; i++ )
{
float t = thetaMaxRadians * i/(n-1);
float x = Math<float>::cos( t );
float y = Math<float>::sin( t );
pVector.push_back( V3f( m_radius * x, m_radius * y, m_z ) );
nVector.push_back( V3f( 0.0f, 0.0f, 1.0f ) );
stVector.push_back( V2f( x/2.0f + 0.5f, y/2.0f + 0.5f ) );
}
m_nPoints = n + 1;
addVertexAttribute( "P", pData );
addVertexAttribute( "N", nData );
addVertexAttribute( "st", stData );
}
IECore::DataPtr convert( const MCommandResult &result )
{
MStatus s;
switch (result.resultType())
{
case MCommandResult::kInvalid:
{
// No result
return 0;
}
case MCommandResult::kInt:
{
int i;
s = result.getResult(i);
assert(s);
IECore::IntDataPtr data = new IECore::IntData();
data->writable() = i;
return data;
}
case MCommandResult::kIntArray:
{
MIntArray v;
s = result.getResult(v);
assert(s);
unsigned sz = v.length();
IECore::IntVectorDataPtr data = new IECore::IntVectorData();
data->writable().resize(sz);
for (unsigned i = 0; i < sz; i++)
{
(data->writable())[i] = v[i];
}
return data;
}
case MCommandResult::kDouble:
{
double d;
s = result.getResult(d);
assert(s);
IECore::FloatDataPtr data = new IECore::FloatData();
data->writable() = static_cast<float>(d);
return data;
}
case MCommandResult::kDoubleArray:
{
MDoubleArray v;
s = result.getResult(v);
assert(s);
unsigned sz = v.length();
IECore::DoubleVectorDataPtr data = new IECore::DoubleVectorData();
data->writable().resize(sz);
for (unsigned i = 0; i < sz; i++)
{
data->writable()[i] = v[i];
}
return data;
}
case MCommandResult::kString:
{
MString str;
s = result.getResult(str);
assert(s);
IECore::StringDataPtr data = new IECore::StringData();
data->writable() = std::string(str.asChar());
return data;
}
case MCommandResult::kStringArray:
{
MStringArray v;
s = result.getResult(v);
assert(s);
unsigned sz = v.length();
IECore::StringVectorDataPtr data = new IECore::StringVectorData();
data->writable().resize(sz);
for (unsigned i = 0; i < sz; i++)
{
data->writable()[i] = std::string(v[i].asChar());
}
return data;
}
case MCommandResult::kVector:
{
MVector v;
s = result.getResult(v);
assert(s);
IECore::V3fDataPtr data = new IECore::V3fData();
data->writable() = Imath::V3f(v.x, v.y, v.z);
return data;
}
case MCommandResult::kVectorArray:
{
MVectorArray v;
s = result.getResult(v);
assert(s);
unsigned sz = v.length();
IECore::V3fVectorDataPtr data = new IECore::V3fVectorData();
data->writable().resize(sz);
for (unsigned i = 0; i < sz; i++)
{
data->writable()[i] = Imath::V3f(v[i].x, v[i].y, v[i].z);
}
return data;
}
case MCommandResult::kMatrix:
{
MDoubleArray v;
int numRows, numColumns;
s = result.getResult(v, numRows, numColumns);
assert(s);
if (numRows > 4 || numColumns > 4)
{
throw IECoreMaya::StatusException( MS::kFailure );
}
IECore::M44fDataPtr data = new IECore::M44fData();
for (int i = 0; i < numColumns; i++)
{
for (int j = 0; j < numRows; j++)
{
(data->writable())[i][j] = v[i*numRows+j];
}
}
return data;
}
case MCommandResult::kMatrixArray:
{
return 0;
}
default:
assert( false );
return 0;
}
}
SpherePrimitive::SpherePrimitive( float radius, float zMin, float zMax, float thetaMax )
: m_radius( radius ), m_zMin( zMin ), m_zMax( zMax ), m_thetaMax( thetaMax ), m_vertIdsBuffer( 0 )
{
// figure out bounding box
thetaMax = m_thetaMax/180.0f * M_PI;
float minX = m_radius * ( thetaMax < M_PI ? Math<float>::cos( thetaMax ) : -1.0f );
float maxY = m_radius * ( thetaMax < M_PI/2 ? Math<float>::sin( thetaMax ) : 1.0f );
float minY = m_radius * ( thetaMax > 3 * M_PI/2 ? -1.0f : min( 0.0f, Math<float>::sin( thetaMax ) ) );
m_bound = Imath::Box3f( V3f( minX, minY, m_zMin * m_radius ), V3f( m_radius, maxY, m_zMax * m_radius ) );
// build vertex attributes for P, N and st, and indexes for triangles.
IECore::V3fVectorDataPtr pData = new IECore::V3fVectorData;
IECore::V3fVectorDataPtr nData = new IECore::V3fVectorData;
IECore::V2fVectorDataPtr stData = new IECore::V2fVectorData;
m_vertIds = new IECore::UIntVectorData;
vector<V3f> &pVector = pData->writable();
vector<V3f> &nVector = nData->writable();
vector<V2f> &stVector = stData->writable();
vector<unsigned int> &vertIdsVector = m_vertIds->writable();
float oMin = Math<float>::asin( m_zMin );
float oMax = Math<float>::asin( m_zMax );
const unsigned int nO = max( 4u, (unsigned int)( 20.0f * (oMax - oMin) / M_PI ) );
thetaMax = m_thetaMax/180.0f * M_PI;
const unsigned int nT = max( 7u, (unsigned int)( 40.0f * thetaMax / (M_PI*2) ) );
for( unsigned int i=0; i<nO; i++ )
{
float v = (float)i/(float)(nO-1);
float o = lerp( oMin, oMax, v );
float z = m_radius * Math<float>::sin( o );
float r = m_radius * Math<float>::cos( o );
for( unsigned int j=0; j<nT; j++ )
{
float u = (float)j/(float)(nT-1);
float theta = thetaMax * u;
V3f p( r * Math<float>::cos( theta ), r * Math<float>::sin( theta ), z );
stVector.push_back( V2f( u, v ) );
pVector.push_back( p );
nVector.push_back( p );
if( i < nO - 1 && j < nT - 1 )
{
unsigned int i0 = i * nT + j;
unsigned int i1 = i0 + 1;
unsigned int i2 = i0 + nT;
unsigned int i3 = i2 + 1;
vertIdsVector.push_back( i0 );
vertIdsVector.push_back( i1 );
vertIdsVector.push_back( i2 );
vertIdsVector.push_back( i1 );
vertIdsVector.push_back( i3 );
vertIdsVector.push_back( i2 );
}
}
}
addVertexAttribute( "P", pData );
addVertexAttribute( "N", nData );
addVertexAttribute( "st", stData );
}
IECore::PrimitivePtr FromMayaCurveConverter::doPrimitiveConversion( MFnNurbsCurve &fnCurve ) const
{
// decide on the basis and periodicity
int mDegree = fnCurve.degree();
IECore::CubicBasisf basis = IECore::CubicBasisf::linear();
if( m_linearParameter->getTypedValue()==false && mDegree==3 )
{
basis = IECore::CubicBasisf::bSpline();
}
bool periodic = false;
if( fnCurve.form()==MFnNurbsCurve::kPeriodic )
{
periodic = true;
}
// get the points and convert them
MPointArray mPoints;
fnCurve.getCVs( mPoints, space() );
if( periodic )
{
// maya duplicates the first points at the end, whereas we just wrap around.
// remove the duplicates.
mPoints.setLength( mPoints.length() - mDegree );
}
bool duplicateEnds = false;
if( !periodic && mDegree==3 )
{
// there's an implicit duplication of the end points that we need to make explicit
duplicateEnds = true;
}
IECore::V3fVectorDataPtr pointsData = new IECore::V3fVectorData;
std::vector<Imath::V3f> &points = pointsData->writable();
std::vector<Imath::V3f>::iterator transformDst;
if( duplicateEnds )
{
points.resize( mPoints.length() + 4 );
transformDst = points.begin();
*transformDst++ = IECore::convert<Imath::V3f>( mPoints[0] );
*transformDst++ = IECore::convert<Imath::V3f>( mPoints[0] );
}
else
{
points.resize( mPoints.length() );
transformDst = points.begin();
}
std::transform( MArrayIter<MPointArray>::begin( mPoints ), MArrayIter<MPointArray>::end( mPoints ), transformDst, IECore::VecConvert<MPoint, V3f>() );
if( duplicateEnds )
{
points[points.size()-1] = IECore::convert<Imath::V3f>( mPoints[mPoints.length()-1] );
points[points.size()-2] = IECore::convert<Imath::V3f>( mPoints[mPoints.length()-1] );
}
// make and return the curve
IECore::IntVectorDataPtr vertsPerCurve = new IECore::IntVectorData;
vertsPerCurve->writable().push_back( points.size() );
return new IECore::CurvesPrimitive( vertsPerCurve, basis, periodic, pointsData );
}
