diff options
Diffstat (limited to 'source/blender/alembic/intern/abc_camera.cc')
| -rw-r--r-- | source/blender/alembic/intern/abc_camera.cc | 162 |
1 files changed, 162 insertions, 0 deletions
diff --git a/source/blender/alembic/intern/abc_camera.cc b/source/blender/alembic/intern/abc_camera.cc new file mode 100644 index 00000000000..38a6d3d33cf --- /dev/null +++ b/source/blender/alembic/intern/abc_camera.cc @@ -0,0 +1,162 @@ +/* + * ***** 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_camera.h" + +#include "abc_transform.h" +#include "abc_util.h" + +extern "C" { +#include "DNA_camera_types.h" +#include "DNA_object_types.h" + +#include "BKE_camera.h" +#include "BKE_object.h" + +#include "BLI_math.h" +#include "BLI_string.h" +} + +using Alembic::AbcGeom::ICamera; +using Alembic::AbcGeom::ICompoundProperty; +using Alembic::AbcGeom::IFloatProperty; +using Alembic::AbcGeom::ISampleSelector; + +using Alembic::AbcGeom::OCamera; +using Alembic::AbcGeom::OFloatProperty; + +using Alembic::AbcGeom::CameraSample; +using Alembic::AbcGeom::kWrapExisting; + +/* ************************************************************************** */ + +AbcCameraWriter::AbcCameraWriter(Scene *scene, + Object *ob, + AbcTransformWriter *parent, + uint32_t time_sampling, + ExportSettings &settings) + : AbcObjectWriter(scene, ob, time_sampling, settings, parent) +{ + OCamera camera(parent->alembicXform(), m_name, m_time_sampling); + m_camera_schema = camera.getSchema(); + + m_custom_data_container = m_camera_schema.getUserProperties(); + m_stereo_distance = OFloatProperty(m_custom_data_container, "stereoDistance", m_time_sampling); + m_eye_separation = OFloatProperty(m_custom_data_container, "eyeSeparation", m_time_sampling); +} + +void AbcCameraWriter::do_write() +{ + Camera *cam = static_cast<Camera *>(m_object->data); + + m_stereo_distance.set(cam->stereo.convergence_distance); + m_eye_separation.set(cam->stereo.interocular_distance); + + const double apperture_x = cam->sensor_x / 10.0; + const double apperture_y = cam->sensor_y / 10.0; + const double film_aspect = apperture_x / apperture_y; + + m_camera_sample.setFocalLength(cam->lens); + m_camera_sample.setHorizontalAperture(apperture_x); + m_camera_sample.setVerticalAperture(apperture_y); + m_camera_sample.setHorizontalFilmOffset(apperture_x * cam->shiftx); + m_camera_sample.setVerticalFilmOffset(apperture_y * cam->shifty * film_aspect); + m_camera_sample.setNearClippingPlane(cam->clipsta); + m_camera_sample.setFarClippingPlane(cam->clipend); + + if (cam->dof_ob) { + Imath::V3f v(m_object->loc[0] - cam->dof_ob->loc[0], + m_object->loc[1] - cam->dof_ob->loc[1], + m_object->loc[2] - cam->dof_ob->loc[2]); + m_camera_sample.setFocusDistance(v.length()); + } + else { + m_camera_sample.setFocusDistance(cam->gpu_dof.focus_distance); + } + + /* Blender camera does not have an fstop param, so try to find a custom prop + * instead. */ + m_camera_sample.setFStop(cam->gpu_dof.fstop); + + m_camera_sample.setLensSqueezeRatio(1.0); + m_camera_schema.set(m_camera_sample); +} + +/* ************************************************************************** */ + +AbcCameraReader::AbcCameraReader(const Alembic::Abc::IObject &object, ImportSettings &settings) + : AbcObjectReader(object, settings) +{ + ICamera abc_cam(m_iobject, kWrapExisting); + m_schema = abc_cam.getSchema(); + + get_min_max_time(m_schema, m_min_time, m_max_time); +} + +bool AbcCameraReader::valid() const +{ + return m_schema.valid(); +} + +void AbcCameraReader::readObjectData(Main *bmain, float time) +{ + Camera *bcam = static_cast<Camera *>(BKE_camera_add(bmain, "abc_camera")); + + ISampleSelector sample_sel(time); + CameraSample cam_sample; + m_schema.get(cam_sample, sample_sel); + + ICompoundProperty customDataContainer = m_schema.getUserProperties(); + + if (customDataContainer.valid() && + customDataContainer.getPropertyHeader("stereoDistance") && + customDataContainer.getPropertyHeader("eyeSeparation")) + { + IFloatProperty convergence_plane(customDataContainer, "stereoDistance"); + IFloatProperty eye_separation(customDataContainer, "eyeSeparation"); + + bcam->stereo.interocular_distance = eye_separation.getValue(sample_sel); + bcam->stereo.convergence_distance = convergence_plane.getValue(sample_sel); + } + + const float lens = cam_sample.getFocalLength(); + const float apperture_x = cam_sample.getHorizontalAperture(); + const float apperture_y = cam_sample.getVerticalAperture(); + const float h_film_offset = cam_sample.getHorizontalFilmOffset(); + const float v_film_offset = cam_sample.getVerticalFilmOffset(); + const float film_aspect = apperture_x / apperture_y; + + bcam->lens = lens; + bcam->sensor_x = apperture_x * 10; + bcam->sensor_y = apperture_y * 10; + bcam->shiftx = h_film_offset / apperture_x; + bcam->shifty = v_film_offset / apperture_y / film_aspect; + bcam->clipsta = max_ff(0.1f, cam_sample.getNearClippingPlane()); + bcam->clipend = cam_sample.getFarClippingPlane(); + bcam->gpu_dof.focus_distance = cam_sample.getFocusDistance(); + bcam->gpu_dof.fstop = cam_sample.getFStop(); + + BLI_strncpy(bcam->id.name + 2, m_data_name.c_str(), m_data_name.size() + 1); + + m_object = BKE_object_add_only_object(bmain, OB_CAMERA, m_object_name.c_str()); + m_object->data = bcam; +} |