Hans Goudey
63 lines
1.8 KiB
C++
63 lines
1.8 KiB
C++
/* SPDX-FileCopyrightText: 2020 Blender Authors
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0-or-later */
|
|
#include "usd_writer_metaball.h"
|
|
#include "usd_hierarchy_iterator.h"
|
|
|
|
#include <pxr/usd/usdGeom/mesh.h>
|
|
#include <pxr/usd/usdShade/material.h>
|
|
#include <pxr/usd/usdShade/materialBindingAPI.h>
|
|
|
|
#include "BLI_assert.h"
|
|
|
|
#include "BKE_displist.h"
|
|
#include "BKE_lib_id.hh"
|
|
#include "BKE_mball.hh"
|
|
#include "BKE_mesh.hh"
|
|
#include "BKE_object.hh"
|
|
|
|
#include "DNA_mesh_types.h"
|
|
#include "DNA_meta_types.h"
|
|
|
|
namespace blender::io::usd {
|
|
|
|
USDMetaballWriter::USDMetaballWriter(const USDExporterContext &ctx) : USDGenericMeshWriter(ctx) {}
|
|
|
|
bool USDMetaballWriter::is_supported(const HierarchyContext *context) const
|
|
{
|
|
Scene *scene = DEG_get_input_scene(usd_export_context_.depsgraph);
|
|
return is_basis_ball(scene, context->object) && USDGenericMeshWriter::is_supported(context);
|
|
}
|
|
|
|
bool USDMetaballWriter::check_is_animated(const HierarchyContext & /*context*/) const
|
|
{
|
|
/* We assume that metaballs are always animated, as the current object may
|
|
* not be animated but another ball in the same group may be. */
|
|
return true;
|
|
}
|
|
|
|
Mesh *USDMetaballWriter::get_export_mesh(Object *object_eval, bool &r_needsfree)
|
|
{
|
|
Mesh *mesh_eval = BKE_object_get_evaluated_mesh(object_eval);
|
|
if (mesh_eval != nullptr) {
|
|
/* Mesh_eval only exists when generative modifiers are in use. */
|
|
r_needsfree = false;
|
|
return mesh_eval;
|
|
}
|
|
r_needsfree = true;
|
|
return BKE_mesh_new_from_object(usd_export_context_.depsgraph, object_eval, false, false);
|
|
}
|
|
|
|
void USDMetaballWriter::free_export_mesh(Mesh *mesh)
|
|
{
|
|
BKE_id_free(nullptr, mesh);
|
|
}
|
|
|
|
bool USDMetaballWriter::is_basis_ball(Scene *scene, Object *ob) const
|
|
{
|
|
Object *basis_ob = BKE_mball_basis_find(scene, ob);
|
|
return ob == basis_ob;
|
|
}
|
|
|
|
} // namespace blender::io::usd
|