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                         for u in objs:
  39                                 if u is o:
  40                                         continue
  41                                 if u.data.name!=o.data.name:
  42                                         continue
  43                                 if any(m1.name!=m2.name for m1, m2 in zip(o.material_slots, u.material_slots)):
  44                                         continue
  45
  46                                 clones.append(u)
  47
  48                         prefix = o.name
  49                         for c in clones:
  50                                 while not c.name.startswith(prefix):
  51                                         pos = max(prefix.rfind(' '), prefix.rfind('.'))
  52                                         if pos<0:
  53                                                 break;
  54                                         prefix = prefix[:pos]
  55
  56                         if prefix:
  57                                 export_names[o.name+".object"] = prefix.strip(" .")+".object"
  58
  59                         unique_objects.append(o)
  60                         for c in clones:
  61                                 object_prototypes[c.name] = o
  62
  63                 from .util import Progress
  64                 progress = Progress(self.show_progress and context)
  65
  66                 resources = {}
  67                 self.export_scene_resources(context, unique_objects, resources, progress)
  68                 for n, r in resources.items():
  69                         if r.name in export_names:
  70                                 r.name = export_names[r.name]
  71
  72                 scene_res = self.export_scene(context, objs, progress, prototypes=object_prototypes, resources=resources)
  73                 refs = scene_res.collect_references()
  74
  75                 if self.resource_collection:
  76                         filter = None
  77                         if self.skip_existing:
  78                                 filter = lambda r: not os.path.exists(os.path.join(path, r.name))
  79                         scene_res.write_collection(os.path.join(path, base+"_resources.mdc"), exclude_self=True, filter=filter)
  80                 else:
  81                         res_dir = os.path.join(path, base+"_resources")
  82                         if not os.path.exists(res_dir):
  83                                 os.makedirs(res_dir)
  84                         for r in refs:
  85                                 r.write_to_file(os.path.join(res_dir, r.name))
  86
  87                 scene_res.write_to_file(out_fn)
  88
  89         def export_scene_resources(self, context, objs, resources, progress):
  90                 from .export_object import ObjectExporter
  91                 object_export = ObjectExporter()
  92                 object_export.single_file = False
  93
  94                 material_atlases = {}
  95
  96                 for i, o in enumerate(objs):
  97                         progress.push_task_slice(o.name, i, len(objs))
  98                         object_export.export_object_resources(context, o, resources, progress, material_atlases=material_atlases)
  99                         obj_name = o.name+".object"
 100                         resources[obj_name] = object_export.export_object(context, o, progress, resources=resources)
 101                         progress.pop_task()
 102
 103         def export_scene(self, context, objs, progress, *, prototypes, resources):
 104                 from .datafile import Resource, Statement
 105                 scene_res = Resource("scene.scene", "scene")
 106
 107                 for o in objs:
 108                         obj_res = resources[prototypes[o.name].name+".object"]
 109                         st = scene_res.create_reference_statement("object", obj_res, o.name)
 110
 111                         ss = Statement("transform")
 112
 113                         loc = o.matrix_world.to_translation()
 114                         ss.sub.append(Statement("position", *tuple(loc)))
 115
 116                         quat = o.matrix_world.to_quaternion()
 117                         if o.rotation_mode in ('XYZ', 'XZY', 'YXZ', 'YZX', 'ZXY', 'ZYX'):
 118                                 angles = [a*180/math.pi for a in quat.to_euler()]
 119                                 ss.sub.append(Statement("euler", *angles));
 120                         else:
 121                                 ss.sub.append(Statement("rotation", quat.angle*180/math.pi, *tuple(quat.axis)))
 122
 123                         scale = o.matrix_world.to_scale()
 124                         ss.sub.append(Statement("scale", *tuple(scale)))
 125
 126                         st.sub.append(ss)
 127                         scene_res.statements.append(st)
 128
 129                 progress.set_progress(1.0)
 130
 131                 return scene_res