976eaae02f
Simplifies the fix to #111120, where the object bounds functions may return a C++ type instead of `BoundBox`. Pull Request: https://projects.blender.org/blender/blender/pulls/113462
49 lines
1.6 KiB
C++
49 lines
1.6 KiB
C++
/* SPDX-FileCopyrightText: 2019 Blender Authors
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*
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* SPDX-License-Identifier: GPL-2.0-or-later */
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#include "usd_writer_transform.h"
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#include "usd_hierarchy_iterator.h"
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#include <pxr/base/gf/matrix4f.h>
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#include <pxr/usd/usdGeom/xform.h>
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#include "BKE_object.hh"
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#include "BLI_math_matrix.h"
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#include "DNA_layer_types.h"
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namespace blender::io::usd {
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USDTransformWriter::USDTransformWriter(const USDExporterContext &ctx) : USDAbstractWriter(ctx) {}
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void USDTransformWriter::do_write(HierarchyContext &context)
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{
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float parent_relative_matrix[4][4]; /* The object matrix relative to the parent. */
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mul_m4_m4m4(parent_relative_matrix, context.parent_matrix_inv_world, context.matrix_world);
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/* Write the transform relative to the parent. */
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pxr::UsdGeomXform xform = pxr::UsdGeomXform::Define(usd_export_context_.stage,
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usd_export_context_.usd_path);
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if (!xformOp_) {
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xformOp_ = xform.AddTransformOp();
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}
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xformOp_.Set(pxr::GfMatrix4d(parent_relative_matrix), get_export_time_code());
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}
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bool USDTransformWriter::check_is_animated(const HierarchyContext &context) const
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{
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if (context.duplicator != nullptr) {
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/* This object is being duplicated, so could be emitted by a particle system and thus
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* influenced by forces. TODO(Sybren): Make this more strict. Probably better to get from the
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* depsgraph whether this object instance has a time source. */
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return true;
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}
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if (check_has_physics(context)) {
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return true;
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}
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return BKE_object_moves_in_time(context.object, context.animation_check_include_parent);
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}
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} // namespace blender::io::usd
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