diff options
Diffstat (limited to 'source/blender/alembic/intern/abc_transform.cc')
| -rw-r--r-- | source/blender/alembic/intern/abc_transform.cc | 152 |
1 files changed, 152 insertions, 0 deletions
diff --git a/source/blender/alembic/intern/abc_transform.cc b/source/blender/alembic/intern/abc_transform.cc new file mode 100644 index 00000000000..3326ae0ed84 --- /dev/null +++ b/source/blender/alembic/intern/abc_transform.cc @@ -0,0 +1,152 @@ +/* + * ***** BEGIN GPL LICENSE BLOCK ***** + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software Foundation, + * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + * + * Contributor(s): Esteban Tovagliari, Cedric Paille, Kevin Dietrich + * + * ***** END GPL LICENSE BLOCK ***** + */ + +#include "abc_transform.h" + +#include <OpenEXR/ImathBoxAlgo.h> + +#include "abc_util.h" + +extern "C" { +#include "DNA_object_types.h" + +#include "BLI_math.h" + +#include "BKE_object.h" +} + +using Alembic::AbcGeom::OObject; +using Alembic::AbcGeom::OXform; + +/* ************************************************************************** */ + +static bool has_parent_camera(Object *ob) +{ + if (!ob->parent) { + return false; + } + + Object *parent = ob->parent; + + if (parent->type == OB_CAMERA) { + return true; + } + + return has_parent_camera(parent); +} + +/* ************************************************************************** */ + +AbcTransformWriter::AbcTransformWriter(Object *ob, + const OObject &abc_parent, + AbcTransformWriter *parent, + unsigned int time_sampling, + ExportSettings &settings) + : AbcObjectWriter(NULL, ob, time_sampling, settings, parent) +{ + m_is_animated = hasAnimation(m_object); + m_parent = NULL; + + if (!m_is_animated) { + time_sampling = 0; + } + + m_xform = OXform(abc_parent, get_id_name(m_object), time_sampling); + m_schema = m_xform.getSchema(); +} + +void AbcTransformWriter::do_write() +{ + if (m_first_frame) { + m_visibility = Alembic::AbcGeom::CreateVisibilityProperty(m_xform, m_xform.getSchema().getTimeSampling()); + } + + m_visibility.set(!(m_object->restrictflag & OB_RESTRICT_VIEW)); + + if (!m_first_frame && !m_is_animated) { + return; + } + + float mat[4][4]; + create_transform_matrix(m_object, mat); + + /* Only apply rotation to root camera, parenting will propagate it. */ + if (m_object->type == OB_CAMERA && !has_parent_camera(m_object)) { + float rot_mat[4][4]; + unit_m4(rot_mat); + rotate_m4(rot_mat, 'X', -M_PI_2); + mul_m4_m4m4(mat, mat, rot_mat); + } + + if (!m_object->parent) { + /* Only apply scaling to root objects, parenting will propagate it. */ + float scale_mat[4][4]; + scale_m4_fl(scale_mat, m_settings.global_scale); + mul_m4_m4m4(mat, mat, scale_mat); + mul_v3_fl(mat[3], m_settings.global_scale); + } + + m_matrix = convert_matrix(mat); + + m_sample.setMatrix(m_matrix); + m_schema.set(m_sample); +} + +Imath::Box3d AbcTransformWriter::bounds() +{ + Imath::Box3d bounds; + + for (int i = 0; i < m_children.size(); ++i) { + Imath::Box3d box(m_children[i]->bounds()); + bounds.extendBy(box); + } + + return Imath::transform(bounds, m_matrix); +} + +bool AbcTransformWriter::hasAnimation(Object */*ob*/) const +{ + /* TODO(kevin): implement this. */ + return true; +} + +/* ************************************************************************** */ + +AbcEmptyReader::AbcEmptyReader(const Alembic::Abc::IObject &object, ImportSettings &settings) + : AbcObjectReader(object, settings) +{ + Alembic::AbcGeom::IXform xform(object, Alembic::AbcGeom::kWrapExisting); + m_schema = xform.getSchema(); + + get_min_max_time(m_schema, m_min_time, m_max_time); +} + +bool AbcEmptyReader::valid() const +{ + return m_schema.valid(); +} + +void AbcEmptyReader::readObjectData(Main *bmain, float /*time*/) +{ + m_object = BKE_object_add_only_object(bmain, OB_EMPTY, m_object_name.c_str()); + m_object->data = NULL; +} |