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.active_layers = True
   8                 self.resource_collection = True
   9                 self.show_progress = True
  10
  11         def export_to_file(self, context, out_fn):
  12                 if self.selected_only:
  13                         objs = context.selected_objects
  14                 else:
  15                         objs = context.scene.objects
  16                 if self.active_layers:
  17                         layers = context.scene.layers
  18                         objs = [o for o in objs if any(a and b for a, b in zip(layers, o.layers))]
  19                 objs = [o for o in objs if o.type=="MESH" and not o.lod_for_parent]
  20                 objs = [o for o in objs if (not o.compound or o.parent not in objs)]
  21
  22                 path, base = os.path.split(out_fn)
  23                 base, ext = os.path.splitext(base)
  24
  25                 from .export_object import ObjectExporter
  26                 object_export = ObjectExporter()
  27
  28                 object_prototypes = {}
  29                 unique_objects = []
  30                 export_names = {}
  31                 for o in objs:
  32                         if o.name in object_prototypes:
  33                                 continue
  34
  35                         clones = [o]
  36                         if not any(s.link=="OBJECT" for s in o.material_slots):
  37                                 for u in objs:
  38                                         if u is o:
  39                                                 continue
  40                                         if u.data.name!=o.data.name:
  41                                                 continue
  42                                         if any(s.link=="OBJECT" for s in u.material_slots):
  43                                                 continue
  44
  45                                         clones.append(u)
  46
  47                         prefix = o.name
  48                         for c in clones:
  49                                 while not c.name.startswith(prefix):
  50                                         pos = max(prefix.rfind(' '), prefix.rfind('.'))
  51                                         if pos<0:
  52                                                 break;
  53                                         prefix = prefix[:pos]
  54
  55                         if prefix:
  56                                 export_names[o.name+".object"] = prefix.strip(" .")+".object"
  57
  58                         unique_objects.append(o)
  59                         for c in clones:
  60                                 object_prototypes[c.name] = o
  61
  62                 from .util import Progress
  63                 progress = Progress(self.show_progress and context)
  64
  65                 resources = {}
  66                 self.export_scene_resources(context, unique_objects, resources, progress)
  67                 for n, r in resources.items():
  68                         if r.name in export_names:
  69                                 r.name = export_names[r.name]
  70
  71                 scene_res = self.export_scene(context, objs, progress, prototypes=object_prototypes, resources=resources)
  72                 refs = scene_res.collect_references()
  73
  74                 if self.resource_collection:
  75                         from .datafile import Statement
  76                         keywords = { ".mat": "material",
  77                                 ".mesh": "mesh",
  78                                 ".object": "object",
  79                                 ".tech": "technique",
  80                                 ".tex2d": "texture2d" }
  81                         with open(os.path.join(path, base+"_resources.mdc"), "w") as res_out:
  82                                 for r in refs:
  83                                         st = Statement(keywords[os.path.splitext(r.name)[1]], r.name)
  84                                         st.sub = r.statements
  85                                         st.write_to_file(res_out)
  86                 else:
  87                         res_dir = os.path.join(path, base+"_resources")
  88                         if not os.path.exists(res_dir):
  89                                 os.makedirs(res_dir)
  90                         for r in refs:
  91                                 with open(os.path.join(res_dir, r.name), "w") as res_out:
  92                                         for s in r.statements:
  93                                                 s.write_to_file(res_out)
  94
  95                 with open(out_fn, "w") as out_file:
  96                         for s in scene_res.statements:
  97                                 s.write_to_file(out_file)
  98
  99         def export_scene_resources(self, context, objs, resources, progress):
 100                 from .export_object import ObjectExporter
 101                 object_export = ObjectExporter()
 102                 object_export.single_file = False
 103
 104                 material_maps = {}
 105
 106                 for i, o in enumerate(objs):
 107                         progress.push_task_slice(o.name, i, len(objs))
 108                         object_export.export_object_resources(context, o, resources, progress, material_maps=material_maps)
 109                         obj_name = o.name+".object"
 110                         resources[obj_name] = object_export.export_object(context, o, progress, resources=resources)
 111                         progress.pop_task()
 112
 113         def export_scene(self, context, objs, progress, *, prototypes, resources):
 114                 from .datafile import Resource, Statement
 115                 scene_res = Resource("scene.scene")
 116
 117                 for o in objs:
 118                         obj_res = resources[prototypes[o.name].name+".object"]
 119                         st = scene_res.create_reference_statement("object", obj_res, o.name)
 120
 121                         ss = Statement("transform")
 122
 123                         loc = o.matrix_world.to_translation()
 124                         ss.sub.append(Statement("position", *tuple(loc)))
 125
 126                         quat = o.matrix_world.to_quaternion()
 127                         if o.rotation_mode in ('XYZ', 'XZY', 'YXZ', 'YZX', 'ZXY', 'ZYX'):
 128                                 angles = [a*180/math.pi for a in quat.to_euler()]
 129                                 ss.sub.append(Statement("euler", *angles));
 130                         else:
 131                                 ss.sub.append(Statement("rotation", quat.angle*180/math.pi, *tuple(quat.axis)))
 132
 133                         scale = o.matrix_world.to_scale()
 134                         ss.sub.append(Statement("scale", *tuple(scale)))
 135
 136                         st.sub.append(ss)
 137                         scene_res.statements.append(st)
 138
 139                 progress.set_progress(1.0)
 140
 141                 return scene_res