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/*
* 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) 2020 Blender Foundation.
* All rights reserved.
*/
#include "usd_reader_xform.h"
#include "BKE_object.h"
#include "DNA_object_types.h"
#include <iostream>
namespace blender::io::usd {
USDXformReader::USDXformReader(const pxr::UsdPrim &prim, const USDImporterContext &context)
: USDXformableReader(prim, context), xform_(prim)
{
}
bool USDXformReader::valid() const
{
return static_cast<bool>(xform_);
}
void USDXformReader::create_object(Main *bmain, double time, USDDataCache *data_cache)
{
if (!this->valid()) {
return;
}
/* Determine prim visibility.
* TODO(makowalski): Consider optimizations to avoid this expensive call,
* for example, by determining visibility during stage traversal. */
pxr::TfToken vis_tok = this->xform_.ComputeVisibility();
if (vis_tok == pxr::UsdGeomTokens->invisible) {
return;
}
std::string obj_name = this->prim_name();
if (obj_name.empty()) {
/* Sanity check. */
std::cerr << "Warning: couldn't determine object name for " << this->prim_path() << std::endl;
}
this->object_ = BKE_object_add_only_object(bmain, OB_EMPTY, obj_name.c_str());
this->object_->data = nullptr;
}
} // namespace blender::io::usd
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