C++ MeshInstance::set_name方法代码示例

Node *EditorOBJImporter::import_scene(const String &p_path, uint32_t p_flags, int p_bake_fps, List<String> *r_missing_deps, Error *r_err) {

	List<Ref<Mesh> > meshes;

	Error err = _parse_obj(p_path, meshes, false, p_flags & IMPORT_GENERATE_TANGENT_ARRAYS, Vector3(1, 1, 1), r_missing_deps);

	if (err != OK) {
		if (r_err) {
			*r_err = err;
		}
		return NULL;
	}

	Spatial *scene = memnew(Spatial);

	for (List<Ref<Mesh> >::Element *E = meshes.front(); E; E = E->next()) {

		MeshInstance *mi = memnew(MeshInstance);
		mi->set_mesh(E->get());
		mi->set_name(E->get()->get_name());
		scene->add_child(mi);
		mi->set_owner(scene);
	}

	if (r_err) {
		*r_err = OK;
	}

	return scene;
}

void MeshInstance::create_debug_tangents() {

	Vector<Vector3> lines;
	Vector<Color> colors;

	Ref<Mesh> mesh = get_mesh();
	if (!mesh.is_valid())
		return;

	for (int i = 0; i < mesh->get_surface_count(); i++) {
		Array arrays = mesh->surface_get_arrays(i);
		Vector<Vector3> verts = arrays[Mesh::ARRAY_VERTEX];
		Vector<Vector3> norms = arrays[Mesh::ARRAY_NORMAL];
		if (norms.size() == 0)
			continue;
		Vector<float> tangents = arrays[Mesh::ARRAY_TANGENT];
		if (tangents.size() == 0)
			continue;

		for (int j = 0; j < verts.size(); j++) {
			Vector3 v = verts[j];
			Vector3 n = norms[j];
			Vector3 t = Vector3(tangents[j * 4 + 0], tangents[j * 4 + 1], tangents[j * 4 + 2]);
			Vector3 b = (n.cross(t)).normalized() * tangents[j * 4 + 3];

			lines.push_back(v); //normal
			colors.push_back(Color(0, 0, 1)); //color
			lines.push_back(v + n * 0.04); //normal
			colors.push_back(Color(0, 0, 1)); //color

			lines.push_back(v); //tangent
			colors.push_back(Color(1, 0, 0)); //color
			lines.push_back(v + t * 0.04); //tangent
			colors.push_back(Color(1, 0, 0)); //color

			lines.push_back(v); //binormal
			colors.push_back(Color(0, 1, 0)); //color
			lines.push_back(v + b * 0.04); //binormal
			colors.push_back(Color(0, 1, 0)); //color
		}
	}

	if (lines.size()) {

		Ref<SpatialMaterial> sm;
		sm.instance();

		sm->set_flag(SpatialMaterial::FLAG_UNSHADED, true);
		sm->set_flag(SpatialMaterial::FLAG_SRGB_VERTEX_COLOR, true);
		sm->set_flag(SpatialMaterial::FLAG_ALBEDO_FROM_VERTEX_COLOR, true);

		Ref<ArrayMesh> am;
		am.instance();
		Array a;
		a.resize(Mesh::ARRAY_MAX);
		a[Mesh::ARRAY_VERTEX] = lines;
		a[Mesh::ARRAY_COLOR] = colors;

		am->add_surface_from_arrays(Mesh::PRIMITIVE_LINES, a);
		am->surface_set_material(0, sm);

		MeshInstance *mi = memnew(MeshInstance);
		mi->set_mesh(am);
		mi->set_name("DebugTangents");
		add_child(mi);
#ifdef TOOLS_ENABLED

		if (this == get_tree()->get_edited_scene_root())
			mi->set_owner(this);
		else
			mi->set_owner(get_owner());
#endif
	}
}

//.........这里部分代码省略.........
		    mi->set_draw_range_begin(dist);
		    mi->set_draw_range_end(100000);

		    mip->set_draw_range_begin(0);
		    mip->set_draw_range_end(dist);

		    /*if (mi->get_mesh().is_valid()) {

			Ref<Mesh> m = mi->get_mesh();
			for(int i=0;i<m->get_surface_count();i++) {

			    Ref<FixedMaterial> fm = m->surface_get_material(i);
			    if (fm.is_valid()) {
				fm->set_flag(Material::FLAG_UNSHADED,true);
				fm->set_flag(Material::FLAG_DOUBLE_SIDED,true);
				fm->set_hint(Material::HINT_NO_DEPTH_DRAW,true);
				fm->set_fixed_flag(FixedMaterial::FLAG_USE_ALPHA,true);
			    }
			}
		    }*/
		}
	    }
	}
    }
	if (p_flags&SCENE_FLAG_CREATE_COLLISIONS && _teststr(name,"colonly") && p_node->cast_to<MeshInstance>()) {

		if (isroot)
			return p_node;

		MeshInstance *mi = p_node->cast_to<MeshInstance>();
		Node * col = mi->create_trimesh_collision_node();

		ERR_FAIL_COND_V(!col,NULL);
		col->set_name(_fixstr(name,"colonly"));
		col->cast_to<Spatial>()->set_transform(mi->get_transform());
		p_node->replace_by(col);
		memdelete(p_node);
		p_node=col;

	} else if (p_flags&SCENE_FLAG_CREATE_COLLISIONS &&_teststr(name,"col") && p_node->cast_to<MeshInstance>()) {


		MeshInstance *mi = p_node->cast_to<MeshInstance>();

		mi->set_name(_fixstr(name,"col"));
		mi->create_trimesh_collision();
	} else if (p_flags&SCENE_FLAG_CREATE_ROOMS && _teststr(name,"room") && p_node->cast_to<MeshInstance>()) {


		if (isroot)
			return p_node;

		MeshInstance *mi = p_node->cast_to<MeshInstance>();
		DVector<Face3> faces = mi->get_faces(VisualInstance::FACES_SOLID);


		BSP_Tree bsptree(faces);

		Ref<RoomBounds> area = memnew( RoomBounds );
		area->set_bounds(faces);
		area->set_geometry_hint(faces);


		Room * room = memnew( Room );
		room->set_name(_fixstr(name,"room"));
		room->set_transform(mi->get_transform());

//.........这里部分代码省略.........

				face[1] = face[2];
			}
		} else if (l.begins_with("s ")) { //smoothing
			String what = l.substr(2, l.length()).strip_edges();
			if (what == "off")
				surf_tool->add_smooth_group(false);
			else
				surf_tool->add_smooth_group(true);
		} else if (/*l.begins_with("g ") ||*/ l.begins_with("usemtl ") || (l.begins_with("o ") || f->eof_reached())) { //commit group to mesh
			//groups are too annoying
			if (surf_tool->get_vertex_array().size()) {
				//another group going on, commit it
				if (normals.size() == 0) {
					surf_tool->generate_normals();
				}

				if (generate_tangents && uvs.size()) {
					surf_tool->generate_tangents();
				}

				surf_tool->index();

				print_line("current material library " + current_material_library + " has " + itos(material_map.has(current_material_library)));
				print_line("current material " + current_material + " has " + itos(material_map.has(current_material_library) && material_map[current_material_library].has(current_material)));

				if (material_map.has(current_material_library) && material_map[current_material_library].has(current_material)) {
					surf_tool->set_material(material_map[current_material_library][current_material]);
				}

				mesh = surf_tool->commit(mesh);

				if (current_material != String()) {
					mesh->surface_set_name(mesh->get_surface_count() - 1, current_material.get_basename());
				} else if (current_group != String()) {
					mesh->surface_set_name(mesh->get_surface_count() - 1, current_group);
				}

				print_line("Added surface :" + mesh->surface_get_name(mesh->get_surface_count() - 1));
				surf_tool->clear();
				surf_tool->begin(Mesh::PRIMITIVE_TRIANGLES);
			}

			if (l.begins_with("o ") || f->eof_reached()) {

				MeshInstance *mi = memnew(MeshInstance);
				mi->set_name(name);
				mi->set_mesh(mesh);

				scene->add_child(mi);
				mi->set_owner(scene);

				mesh.instance();
				current_group = "";
				current_material = "";
			}

			if (f->eof_reached()) {
				break;
			}

			if (l.begins_with("o ")) {
				name = l.substr(2, l.length()).strip_edges();
			}

			if (l.begins_with("usemtl ")) {