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source/blender/usd/intern/usd_writer_transform.cc
- This file was added.
| /* | |||||
| * 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. | |||||
| * | |||||
| * The Original Code is Copyright (C) 2019 Blender Foundation. | |||||
| * All rights reserved. | |||||
| */ | |||||
| #include "usd_writer_transform.h" | |||||
| #include "usd_hierarchy_iterator.h" | |||||
| #include <pxr/base/gf/matrix4f.h> | |||||
| #include <pxr/usd/usdGeom/xform.h> | |||||
| extern "C" { | |||||
| #include "BKE_object.h" | |||||
| #include "BLI_math_matrix.h" | |||||
| #include "DNA_layer_types.h" | |||||
| } | |||||
| USDTransformWriter::USDTransformWriter(const USDExporterContext &ctx) : USDAbstractWriter(ctx) | |||||
| { | |||||
| } | |||||
| void USDTransformWriter::do_write(HierarchyContext &context) | |||||
| { | |||||
| float parent_relative_matrix[4][4]; // The object matrix relative to the parent. | |||||
| mul_m4_m4m4(parent_relative_matrix, context.parent_matrix_inv_world, context.matrix_world); | |||||
| // Write the transform relative to the parent. | |||||
| pxr::UsdGeomXform xform = pxr::UsdGeomXform::Define(usd_export_context_.stage, | |||||
| usd_export_context_.usd_path); | |||||
| if (!xformOp_) { | |||||
| xformOp_ = xform.AddTransformOp(); | |||||
| } | |||||
| xformOp_.Set(pxr::GfMatrix4d(parent_relative_matrix), get_export_time_code()); | |||||
| } | |||||
| bool USDTransformWriter::check_is_animated(const HierarchyContext &context) const | |||||
| { | |||||
| if (context.duplicator != NULL) { | |||||
| /* This object is being duplicated, so could be emitted by a particle system and thus | |||||
| * influenced by forces. TODO(Sybren): Make this more strict. Probably better to get from the | |||||
| * depsgraph whether this object instance has a time source. */ | |||||
| return true; | |||||
| } | |||||
| return BKE_object_moves_in_time(context.object, context.animation_check_include_parent); | |||||
| } | |||||