blender/io_mspgl/export_scene.py

   1 import math
   2 import os
   3
   4 class SceneExporter:
   5         def __init__(self):
   6                 self.selected_only = False
   7                 self.visible_collections = True
   8                 self.resource_collection = True
   9                 self.skip_existing = True
  10                 self.show_progress = True
  11
  12         def export_to_file(self, context, out_fn):
  13                 if self.selected_only:
  14                         objs = context.selected_objects
  15                 else:
  16                         objs = context.scene.objects
  17                 if self.visible_collections:
  18                         collections = [c.collection for c in context.view_layer.layer_collection.children if not (c.hide_viewport or c.collection.hide_viewport)]
  19                         objs = [o for o in objs if any((o.name in c.all_objects) for c in collections)]
  20                 objs = [o for o in objs if o.type=="MESH" and not o.lod_for_parent]
  21                 objs = [o for o in objs if (not o.compound or o.parent not in objs)]
  22                 objs.sort(key=lambda x:x.name)
  23
  24                 path, base = os.path.split(out_fn)
  25                 base, ext = os.path.splitext(base)
  26
  27                 from .export_object import ObjectExporter
  28                 object_export = ObjectExporter()
  29
  30                 object_prototypes = {}
  31                 unique_objects = []
  32                 export_names = {}
  33                 for o in objs:
  34                         if o.name in object_prototypes:
  35                                 continue
  36
  37                         clones = [o]
  38                         if not any(s.link=="OBJECT" for s in o.material_slots):
  39                                 for u in objs:
  40                                         if u is o:
  41                                                 continue
  42                                         if u.data.name!=o.data.name:
  43                                                 continue
  44                                         if any(s.link=="OBJECT" for s in u.material_slots):
  45                                                 continue
  46
  47                                         clones.append(u)
  48
  49                         prefix = o.name
  50                         for c in clones:
  51                                 while not c.name.startswith(prefix):
  52                                         pos = max(prefix.rfind(' '), prefix.rfind('.'))
  53                                         if pos<0:
  54                                                 break;
  55                                         prefix = prefix[:pos]
  56
  57                         if prefix:
  58                                 export_names[o.name+".object"] = prefix.strip(" .")+".object"
  59
  60                         unique_objects.append(o)
  61                         for c in clones:
  62                                 object_prototypes[c.name] = o
  63
  64                 from .util import Progress
  65                 progress = Progress(self.show_progress and context)
  66
  67                 resources = {}
  68                 self.export_scene_resources(context, unique_objects, resources, progress)
  69                 for n, r in resources.items():
  70                         if r.name in export_names:
  71                                 r.name = export_names[r.name]
  72
  73                 scene_res = self.export_scene(context, objs, progress, prototypes=object_prototypes, resources=resources)
  74                 refs = scene_res.collect_references()
  75
  76                 if self.resource_collection:
  77                         filter = None
  78                         if self.skip_existing:
  79                                 filter = lambda r: not os.path.exists(os.path.join(path, r.name))
  80                         scene_res.write_collection(os.path.join(path, base+"_resources.mdc"), exclude=self=True, filter)
  81                 else:
  82                         res_dir = os.path.join(path, base+"_resources")
  83                         if not os.path.exists(res_dir):
  84                                 os.makedirs(res_dir)
  85                         for r in refs:
  86                                 r.write_to_file(os.path.join(res_dir, r.name))
  87
  88                 scene_res.write_to_file(out_fn)
  89
  90         def export_scene_resources(self, context, objs, resources, progress):
  91                 from .export_object import ObjectExporter
  92                 object_export = ObjectExporter()
  93                 object_export.single_file = False
  94
  95                 material_atlass = {}
  96
  97                 for i, o in enumerate(objs):
  98                         progress.push_task_slice(o.name, i, len(objs))
  99                         object_export.export_object_resources(context, o, resources, progress, material_atlass=material_atlass)
 100                         obj_name = o.name+".object"
 101                         resources[obj_name] = object_export.export_object(context, o, progress, resources=resources)
 102                         progress.pop_task()
 103
 104         def export_scene(self, context, objs, progress, *, prototypes, resources):
 105                 from .datafile import Resource, Statement
 106                 scene_res = Resource("scene.scene", "scene")
 107
 108                 for o in objs:
 109                         obj_res = resources[prototypes[o.name].name+".object"]
 110                         st = scene_res.create_reference_statement("object", obj_res, o.name)
 111
 112                         ss = Statement("transform")
 113
 114                         loc = o.matrix_world.to_translation()
 115                         ss.sub.append(Statement("position", *tuple(loc)))
 116
 117                         quat = o.matrix_world.to_quaternion()
 118                         if o.rotation_mode in ('XYZ', 'XZY', 'YXZ', 'YZX', 'ZXY', 'ZYX'):
 119                                 angles = [a*180/math.pi for a in quat.to_euler()]
 120                                 ss.sub.append(Statement("euler", *angles));
 121                         else:
 122                                 ss.sub.append(Statement("rotation", quat.angle*180/math.pi, *tuple(quat.axis)))
 123
 124                         scale = o.matrix_world.to_scale()
 125                         ss.sub.append(Statement("scale", *tuple(scale)))
 126
 127                         st.sub.append(ss)
 128                         scene_res.statements.append(st)
 129
 130                 progress.set_progress(1.0)
 131
 132                 return scene_res