diff options
Diffstat (limited to 'source/blender/alembic/intern/abc_curves.cc')
| -rw-r--r-- | source/blender/alembic/intern/abc_curves.cc | 78 |
1 files changed, 62 insertions, 16 deletions
diff --git a/source/blender/alembic/intern/abc_curves.cc b/source/blender/alembic/intern/abc_curves.cc index 0542255d84b..f73fe957fea 100644 --- a/source/blender/alembic/intern/abc_curves.cc +++ b/source/blender/alembic/intern/abc_curves.cc @@ -49,19 +49,26 @@ using Alembic::Abc::Int32ArraySamplePtr; using Alembic::Abc::FloatArraySamplePtr; using Alembic::Abc::P3fArraySamplePtr; using Alembic::Abc::UcharArraySamplePtr; +using Alembic::Abc::PropertyHeader; +using Alembic::AbcGeom::ICompoundProperty; using Alembic::AbcGeom::ICurves; using Alembic::AbcGeom::ICurvesSchema; using Alembic::AbcGeom::IFloatGeomParam; +using Alembic::AbcGeom::IInt16Property; using Alembic::AbcGeom::ISampleSelector; using Alembic::AbcGeom::kWrapExisting; using Alembic::AbcGeom::CurvePeriodicity; +using Alembic::AbcGeom::OCompoundProperty; using Alembic::AbcGeom::OCurves; using Alembic::AbcGeom::OCurvesSchema; +using Alembic::AbcGeom::OInt16Property; using Alembic::AbcGeom::ON3fGeomParam; using Alembic::AbcGeom::OV2fGeomParam; +#define ABC_CURVE_RESOLUTION_U_PROPNAME "blender:resolution" + /* ************************************************************************** */ AbcCurveWriter::AbcCurveWriter(Scene *scene, @@ -73,6 +80,11 @@ AbcCurveWriter::AbcCurveWriter(Scene *scene, { OCurves curves(parent->alembicXform(), m_name, m_time_sampling); m_schema = curves.getSchema(); + + Curve *cu = static_cast<Curve *>(m_object->data); + OCompoundProperty user_props = m_schema.getUserProperties(); + OInt16Property user_prop_resolu(user_props, ABC_CURVE_RESOLUTION_U_PROPNAME); + user_prop_resolu.set(cu->resolu); } void AbcCurveWriter::do_write() @@ -95,7 +107,7 @@ void AbcCurveWriter::do_write() for (; nurbs; nurbs = nurbs->next) { if (nurbs->bp) { curve_basis = Alembic::AbcGeom::kNoBasis; - curve_type = Alembic::AbcGeom::kLinear; + curve_type = Alembic::AbcGeom::kVariableOrder; const int totpoint = nurbs->pntsu * nurbs->pntsv; @@ -160,7 +172,7 @@ void AbcCurveWriter::do_write() } } - orders.push_back(nurbs->orderu + 1); + orders.push_back(nurbs->orderu); vert_counts.push_back(verts.size()); } @@ -199,17 +211,44 @@ bool AbcCurveReader::valid() const return m_curves_schema.valid(); } -void AbcCurveReader::readObjectData(Main *bmain, float time) +bool AbcCurveReader::accepts_object_type(const Alembic::AbcCoreAbstract::ObjectHeader &alembic_header, + const Object *const ob, + const char **err_str) const +{ + if (!Alembic::AbcGeom::ICurves::matches(alembic_header)) { + *err_str = "Object type mismatch, Alembic object path pointed to Curves when importing, but not any more."; + return false; + } + + if (ob->type != OB_CURVE) { + *err_str = "Object type mismatch, Alembic object path points to Curves."; + return false; + } + + return true; +} + +void AbcCurveReader::readObjectData(Main *bmain, const Alembic::Abc::ISampleSelector &sample_sel) { Curve *cu = BKE_curve_add(bmain, m_data_name.c_str(), OB_CURVE); cu->flag |= CU_DEFORM_FILL | CU_3D; cu->actvert = CU_ACT_NONE; + cu->resolu = 1; + + ICompoundProperty user_props = m_curves_schema.getUserProperties(); + if (user_props) { + const PropertyHeader *header = user_props.getPropertyHeader(ABC_CURVE_RESOLUTION_U_PROPNAME); + if (header != NULL && header->isScalar() && IInt16Property::matches(*header)) { + IInt16Property resolu(user_props, header->getName()); + cu->resolu = resolu.getValue(sample_sel); + } + } m_object = BKE_object_add_only_object(bmain, OB_CURVE, m_object_name.c_str()); m_object->data = cu; - read_curve_sample(cu, m_curves_schema, time); + read_curve_sample(cu, m_curves_schema, sample_sel); if (has_animations(m_curves_schema, m_settings)) { addCacheModifier(); @@ -218,9 +257,8 @@ void AbcCurveReader::readObjectData(Main *bmain, float time) /* ************************************************************************** */ -void read_curve_sample(Curve *cu, const ICurvesSchema &schema, const float time) +void read_curve_sample(Curve *cu, const ICurvesSchema &schema, const ISampleSelector &sample_sel) { - const ISampleSelector sample_sel(time); ICurvesSchema::Sample smp = schema.getValue(sample_sel); const Int32ArraySamplePtr num_vertices = smp.getCurvesNumVertices(); const P3fArraySamplePtr positions = smp.getPositions(); @@ -250,13 +288,19 @@ void read_curve_sample(Curve *cu, const ICurvesSchema &schema, const float time) nu->pntsv = 1; nu->flag |= CU_SMOOTH; - nu->orderu = num_verts; - - if (smp.getType() == Alembic::AbcGeom::kCubic) { - nu->orderu = 3; - } - else if (orders && orders->size() > i) { - nu->orderu = static_cast<short>((*orders)[i] - 1); + switch (smp.getType()) { + case Alembic::AbcGeom::kCubic: + nu->orderu = 4; + break; + case Alembic::AbcGeom::kVariableOrder: + if (orders && orders->size() > i) { + nu->orderu = static_cast<short>((*orders)[i]); + break; + } + ATTR_FALLTHROUGH; + case Alembic::AbcGeom::kLinear: + default: + nu->orderu = 2; } if (periodicity == Alembic::AbcGeom::kNonPeriodic) { @@ -361,9 +405,11 @@ void read_curve_sample(Curve *cu, const ICurvesSchema &schema, const float time) * object directly and create a new DerivedMesh from that. Also we might need to * create new or delete existing NURBS in the curve. */ -DerivedMesh *AbcCurveReader::read_derivedmesh(DerivedMesh * /*dm*/, const float time, int /*read_flag*/, const char ** /*err_str*/) +DerivedMesh *AbcCurveReader::read_derivedmesh(DerivedMesh * /*dm*/, + const ISampleSelector &sample_sel, + int /*read_flag*/, + const char ** /*err_str*/) { - ISampleSelector sample_sel(time); const ICurvesSchema::Sample sample = m_curves_schema.getValue(sample_sel); const P3fArraySamplePtr &positions = sample.getPositions(); @@ -377,7 +423,7 @@ DerivedMesh *AbcCurveReader::read_derivedmesh(DerivedMesh * /*dm*/, const float if (curve_count != num_vertices->size()) { BKE_nurbList_free(&curve->nurb); - read_curve_sample(curve, m_curves_schema, time); + read_curve_sample(curve, m_curves_schema, sample_sel); } else { Nurb *nurbs = static_cast<Nurb *>(curve->nurb.first); |