6 self.show_progress = True
8 self.use_degen_tris = False
9 self.use_textures = True
10 self.single_file = True
11 self.shared_resources = True
12 self.export_lods = True
14 def compute_bounding_sphere(self, obj):
15 p1 = max(((v.co, v.co.length) for v in obj.data.vertices), key=lambda x:x[1])[0]
16 p2 = max(((v.co, (v.co-p1).length) for v in obj.data.vertices), key=lambda x:x[1])[0]
18 radius = (p1-p2).length/2
19 for v in obj.data.vertices:
22 center += d*(1-radius/d.length)/2
23 radius = (radius+d.length)/2
27 def collect_object_lods(self, obj):
30 lods += sorted([c for c in obj.children if c.lod_for_parent], key=(lambda l: l.lod_index))
31 for i, l in enumerate(lods):
32 if i>0 and l.lod_index!=i:
33 raise Exception("Inconsistent LOD indices")
37 def create_mesh_exporter(self):
38 from .export_mesh import MeshExporter
39 mesh_export = MeshExporter()
40 mesh_export.use_strips = self.use_strips
41 mesh_export.use_degen_tris = self.use_degen_tris
44 def create_material_exporter(self):
45 from .export_material import MaterialExporter
46 material_export = MaterialExporter()
47 material_export.single_file = self.single_file
48 material_export.use_textures = self.use_textures
49 return material_export
51 def create_material_map_exporter(self):
52 from .export_material import MaterialMapExporter
53 material_map_export = MaterialMapExporter()
54 material_map_export.single_file = self.single_file
55 return material_map_export
57 def export_to_file(self, context, out_fn):
58 obj = context.active_object
60 from .util import Progress
61 progress = Progress(self.show_progress and context)
63 path, base = os.path.split(out_fn)
64 base = os.path.splitext(base)[0]
67 self.export_object_resources(context, obj, resources, progress)
69 obj_res = self.export_object(context, obj, progress, resources=resources)
70 refs = obj_res.collect_references()
71 if not self.shared_resources:
74 ext = os.path.splitext(r.name)[1]
75 n = numbers.get(ext, 0)
77 r.name = "{}_{}{}".format(base, n, ext)
83 with open(os.path.join(path, r.name), "w") as out_file:
84 for s in r.statements:
85 s.write_to_file(out_file)
87 with open(out_fn, "w") as out_file:
88 for s in obj_res.statements:
89 s.write_to_file(out_file)
91 def export_object_resources(self, context, obj, resources, progress, material_maps=None):
92 if material_maps is None:
95 lods = self.collect_object_lods(obj)
97 from .mesh import create_mesh_from_object
98 from .material import create_material_map
99 mesh_export = self.create_mesh_exporter()
100 material_export = self.create_material_exporter()
101 material_map_export = self.create_material_map_exporter()
103 for i, l in enumerate(lods):
104 lod_index = l.lod_index if l.lod_for_parent else 0
105 progress.push_task_slice("LOD {}".format(lod_index), i, len(lods))
108 mapped_count = sum(m.material_map for m in l.data.materials)
110 material_map_tech = l.data.materials[0].technique
111 tech_mismatch = any(m.technique!=material_map_tech for m in l.data.materials)
112 if mapped_count!=len(l.data.materials) or tech_mismatch:
113 raise Exception("Conflicting settings in object materials")
115 if material_map_tech in material_maps:
116 material_map = material_maps[material_map_tech]
118 material_map = create_material_map(context, l.data.materials[0])
119 material_maps[material_map_tech] = material_map
121 tech_name = "material_map_{}.tech".format(os.path.splitext(material_map_tech)[0])
122 if tech_name not in resources:
123 material_map_export.export_technique_resources(material_map, resources)
124 resources[tech_name] = material_map_export.export_technique(material_map, resources=resources)
125 elif l.material_slots and l.material_slots[0].material:
126 material = l.material_slots[0].material
127 tech_name = material.name+".tech"
128 if tech_name not in resources:
129 material_export.export_technique_resources(material, resources)
130 resources[tech_name] = material_export.export_technique(material, resources=resources)
131 elif "stub.tech" not in resources:
132 resources["stub.tech"] = self.export_stub_technique()
134 mesh_name = l.data.name+".mesh"
135 if mesh_name not in resources:
136 mesh = create_mesh_from_object(context, l, progress, material_map=material_map)
137 mesh_res = mesh_export.export_mesh(context, mesh, progress)
138 resources[mesh_name] = mesh_res
142 def export_object(self, context, obj, progress, *, resources=None):
143 if resources is None:
145 self.export_object_resources(context, obj, resources, progress)
147 lods = self.collect_object_lods(obj)
149 from .datafile import Resource, Statement
150 obj_res = Resource(obj.name+".object")
151 statements = obj_res.statements
153 center, radius = self.compute_bounding_sphere(obj)
154 statements.append(Statement("bounding_sphere_hint", *center, radius))
158 for i, l in enumerate(lods):
161 if l.data.name!=prev_mesh:
162 mesh_res = resources[l.data.name+".mesh"]
163 if not self.single_file:
164 lod_st.append(obj_res.create_reference_statement("mesh", mesh_res))
166 lod_st.append(obj_res.create_embed_statement("mesh", mesh_res))
168 prev_mesh = l.data.name
172 material = l.material_slots[0].material
174 if material.material_map:
175 tech_res = resources["material_map_{}.tech".format(os.path.splitext(material.technique)[0])]
177 tech_res = resources[material.name+".tech"]
179 tech_res = resources["stub.tech"]
181 if tech_res.name!=prev_tech:
182 if material and not material.material_map and material.technique and not material.inherit_tech:
183 lod_st.append(Statement("technique", material.technique))
184 elif not self.single_file:
185 lod_st.append(obj_res.create_reference_statement("technique", tech_res))
187 lod_st.append(obj_res.create_embed_statement("technique", tech_res))
188 prev_tech = tech_res.name
191 st = Statement("level_of_detail", i)
193 statements.append(st)
197 progress.set_progress(1.0)
201 def export_stub_technique(self):
202 from .datafile import Resource, Statement
203 tech_res = Resource("stub.tech")
204 tech_res.statements.append(Statement("pass", ""))