6 self.show_progress = True
8 self.use_degen_tris = False
9 self.use_textures = True
10 self.collection = False
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.use_textures = self.use_textures
48 return material_export
50 def create_material_map_exporter(self):
51 from .export_material import MaterialMapExporter
52 material_map_export = MaterialMapExporter()
53 return material_map_export
55 def export_to_file(self, context, out_fn):
56 obj = context.active_object
58 from .util import Progress
59 progress = Progress(self.show_progress and context)
61 path, base = os.path.split(out_fn)
62 base = os.path.splitext(base)[0]
65 self.export_object_resources(context, obj, resources, progress)
67 obj_res = self.export_object(context, obj, progress, resources=resources)
68 refs = obj_res.collect_references()
69 if not self.shared_resources:
72 ext = os.path.splitext(r.name)[1]
73 n = numbers.get(ext, 0)
75 r.name = "{}_{}{}".format(base, n, ext)
81 obj_res.write_collection(out_fn)
84 r.write_to_file(os.path.join(path, r.name))
85 obj_res.write_to_file(out_fn)
87 def export_object_resources(self, context, obj, resources, progress, material_maps=None):
88 if material_maps is None:
91 lods = self.collect_object_lods(obj)
93 from .mesh import create_mesh_from_object
94 from .material import create_material_map
95 mesh_export = self.create_mesh_exporter()
96 material_export = self.create_material_exporter()
97 material_map_export = self.create_material_map_exporter()
99 for i, l in enumerate(lods):
100 lod_index = l.lod_index if l.lod_for_parent else 0
101 progress.push_task_slice("LOD {}".format(lod_index), i, len(lods))
104 mapped_count = sum(m.render_mode!='EXTERNAL' and m.material_map for m in l.data.materials if m)
106 mmk = lambda m: m.shader if m.render_mode=='CUSTOM' else ""
107 material_map_key = mmk(l.data.materials[0])
108 key_mismatch = any(mmk(m)!=material_map_key for m in l.data.materials)
109 if mapped_count!=len(l.data.materials) or key_mismatch:
110 raise Exception("Conflicting settings in object materials")
112 if material_map_key in material_maps:
113 material_map = material_maps[material_map_key]
115 material_map = create_material_map(context, l.data.materials[0])
116 material_maps[material_map_key] = material_map
118 tech_name = "{}.tech".format(material_map.name)
119 if tech_name not in resources:
120 material_map_export.export_technique_resources(material_map, resources)
121 resources[tech_name] = material_map_export.export_technique(material_map, resources=resources)
122 elif l.material_slots and l.material_slots[0].material:
123 material = l.material_slots[0].material
124 if material.render_mode!='EXTERNAL':
125 tech_name = material.name+".tech"
126 if tech_name not in resources:
127 material_export.export_technique_resources(material, resources)
128 resources[tech_name] = material_export.export_technique(material, resources=resources)
129 elif "stub.tech" not in resources:
130 resources["stub.tech"] = self.export_stub_technique()
132 mesh_name = l.data.name+".mesh"
133 if mesh_name not in resources:
134 mesh = create_mesh_from_object(context, l, progress, material_map=material_map)
135 mesh_res = mesh_export.export_mesh(context, mesh, progress)
136 resources[mesh_name] = mesh_res
140 def export_object(self, context, obj, progress, *, resources=None):
141 if resources is None:
143 self.export_object_resources(context, obj, resources, progress)
145 lods = self.collect_object_lods(obj)
147 from .datafile import Resource, Statement
148 obj_res = Resource(obj.name+".object", "object")
149 statements = obj_res.statements
151 center, radius = self.compute_bounding_sphere(obj)
152 statements.append(Statement("bounding_sphere_hint", *center, radius))
156 for i, l in enumerate(lods):
159 if l.data.name!=prev_mesh:
160 mesh_res = resources[l.data.name+".mesh"]
161 lod_st.append(obj_res.create_reference_statement("mesh", mesh_res))
163 prev_mesh = l.data.name
167 material = l.material_slots[0].material
169 if material.material_map:
170 tech_res = resources["material_map_{}.tech".format(os.path.splitext(material.technique)[0])]
172 tech_res = resources[material.name+".tech"]
174 tech_res = resources["stub.tech"]
176 if tech_res.name!=prev_tech:
177 if material and material.render_mode=='EXTERNAL':
178 lod_st.append(Statement("technique", material.technique))
180 lod_st.append(obj_res.create_reference_statement("technique", tech_res))
181 prev_tech = tech_res.name
184 st = Statement("level_of_detail", i)
186 statements.append(st)
190 progress.set_progress(1.0)
194 def export_stub_technique(self):
195 from .datafile import Resource, Statement
196 tech_res = Resource("stub.tech", "technique")
197 pass_st = Statement("pass", "")
198 tech_res.statements.append(pass_st)
199 mat_st = Statement("material")
200 pass_st.sub.append(mat_st)
201 mat_st.sub.append(Statement("basic"))