Differential D14368 Diff 49369 source/blender/io/wavefront_obj/exporter/obj_export_mesh.cc

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source/blender/io/wavefront_obj/exporter/obj_export_mesh.cc

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	#include "obj_export_mesh.hh"	#include "obj_export_mesh.hh"

		#ifdef WITH_TBB
		# include <tbb/parallel_sort.h>
		#endif

	namespace blender::io::obj {	namespace blender::io::obj {
	OBJMesh::OBJMesh(Depsgraph depsgraph, const OBJExportParams &export_params, Object mesh_object)	OBJMesh::OBJMesh(Depsgraph depsgraph, const OBJExportParams &export_params, Object mesh_object)
	{	{
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	uv_coords_.clear_and_make_inline();	uv_coords_.clear_and_make_inline();
	loop_to_normal_index_.clear_and_make_inline();	loop_to_normal_index_.clear_and_make_inline();
	normal_coords_.clear_and_make_inline();	normal_coords_.clear_and_make_inline();
		poly_order_.clear_and_make_inline();
	if (poly_smooth_groups_) {	if (poly_smooth_groups_) {
	MEM_freeN(poly_smooth_groups_);	MEM_freeN(poly_smooth_groups_);
	poly_smooth_groups_ = nullptr;	poly_smooth_groups_ = nullptr;
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	use_bitflags);	use_bitflags);
	}	}

		void OBJMesh::calc_poly_order()
		{
		const int tot_polys = tot_polygons();
		poly_order_.resize(tot_polys);
		for (int i = 0; i < tot_polys; ++i) {
		poly_order_[i] = i;
		}
		const MPoly *mpolys = export_mesh_eval_->mpoly;
		/* Sort polygons by their material index. */
		#ifdef WITH_TBB
		tbb::parallel_sort(poly_order_.begin(), poly_order_.end(), [&](int a, int b) {
		#else
		std::sort(poly_order_.begin(), poly_order_.end(), [&](const Vert a, const Vert b) {
		#endif
		int mat_a = mpolys[a].mat_nr;
		int mat_b = mpolys[b].mat_nr;
		return mat_a < mat_b;
		});
		}

	const Material *OBJMesh::get_object_material(const int16_t mat_nr) const	const Material *OBJMesh::get_object_material(const int16_t mat_nr) const
	{	{
	/**	/**
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