blender/io_mspgl/export_scene.py

   1 import math
   2 import os
   3
   4 class SceneExporter:
   5         def __init__(self):
   6                 self.resource_collection = True
   7                 self.show_progress = True
   8
   9         def export_to_file(self, context, out_fn):
  10                 objs = [o for o in context.selected_objects if o.type=="MESH" and not o.lod_for_parent]
  11                 objs = [o for o in objs if (not o.compound or o.parent not in objs)]
  12
  13                 path, base = os.path.split(out_fn)
  14                 base, ext = os.path.splitext(base)
  15
  16                 from .export_object import ObjectExporter
  17                 object_export = ObjectExporter()
  18
  19                 object_prototypes = {}
  20                 unique_objects = []
  21                 export_names = {}
  22                 for o in objs:
  23                         if o.name in object_prototypes:
  24                                 continue
  25
  26                         clones = [o]
  27                         if not any(s.link=="OBJECT" for s in o.material_slots):
  28                                 for u in objs:
  29                                         if u is o:
  30                                                 continue
  31                                         if u.data.name!=o.data.name:
  32                                                 continue
  33                                         if u.technique!=o.technique:
  34                                                 continue
  35                                         if any(s.link=="OBJECT" for s in u.material_slots):
  36                                                 continue
  37
  38                                         clones.append(u)
  39
  40                         prefix = o.name
  41                         for c in clones:
  42                                 while not c.name.startswith(prefix):
  43                                         pos = max(prefix.rfind(' '), prefix.rfind('.'))
  44                                         if pos<0:
  45                                                 break;
  46                                         prefix = prefix[:pos]
  47
  48                         if prefix:
  49                                 export_names[o.name+".object"] = prefix.strip(" .")+".object"
  50
  51                         unique_objects.append(o)
  52                         for c in clones:
  53                                 object_prototypes[c.name] = o
  54
  55                 from .util import Progress
  56                 progress = Progress(self.show_progress and context)
  57
  58                 resources = {}
  59                 self.export_scene_resources(context, unique_objects, resources, progress)
  60                 for n, r in resources.items():
  61                         if r.name in export_names:
  62                                 r.name = export_names[r.name]
  63
  64                 scene_res = self.export_scene(context, objs, progress, prototypes=object_prototypes, resources=resources)
  65                 refs = scene_res.collect_references()
  66
  67                 from .datafile import Statement
  68                 if self.resource_collection:
  69                         keywords = { ".mat": "material",
  70                                 ".mesh": "mesh",
  71                                 ".object": "object",
  72                                 ".tech": "technique",
  73                                 ".tex2d": "texture2d" }
  74                         with open(os.path.join(path, base+"_resources.mdc"), "w") as res_out:
  75                                 for r in refs:
  76                                         st = Statement(keywords[os.path.splitext(r.name)[1]], r.name)
  77                                         st.sub = r.statements
  78                                         st.write_to_file(res_out)
  79                 else:
  80                         res_dir = os.path.join(path, base+"_resources")
  81                         if not os.path.exists(res_dir):
  82                                 os.makedirs(res_dir)
  83                         for r in refs:
  84                                 with open(os.path.join(res_dir, r.name), "w") as res_out:
  85                                         for s in r.statements:
  86                                                 s.write_to_file(res_out)
  87
  88                 with open(out_fn, "w") as out_file:
  89                         for s in scene_res.statements:
  90                                 s.write_to_file(out_file)
  91
  92         def export_scene_resources(self, context, objs, resources, progress):
  93                 from .export_object import ObjectExporter
  94                 object_export = ObjectExporter()
  95                 object_export.single_file = False
  96
  97                 material_maps = {}
  98
  99                 for i, o in enumerate(objs):
 100                         progress.push_task_slice(o.name, i, len(objs))
 101                         object_export.export_object_resources(context, o, resources, progress, material_maps=material_maps)
 102                         obj_name = o.name+".object"
 103                         resources[obj_name] = object_export.export_object(context, o, progress, resources=resources)
 104                         progress.pop_task()
 105
 106         def export_scene(self, context, objs, progress, *, prototypes, resources):
 107                 from .datafile import Resource, Statement
 108                 scene_res = Resource("scene.scene")
 109
 110                 for o in objs:
 111                         obj_res = resources[prototypes[o.name].name+".object"]
 112                         st = scene_res.create_reference_statement("object", obj_res, o.name)
 113
 114                         ss = Statement("transform")
 115
 116                         loc = o.matrix_world.to_translation()
 117                         ss.sub.append(Statement("position", *tuple(loc)))
 118
 119                         quat = o.matrix_world.to_quaternion()
 120                         if o.rotation_mode in ('XYZ', 'XZY', 'YXZ', 'YZX', 'ZXY', 'ZYX'):
 121                                 angles = [a*180/math.pi for a in quat.to_euler()]
 122                                 ss.sub.append(Statement("euler", *angles));
 123                         else:
 124                                 ss.sub.append(Statement("rotation", quat.angle*180/math.pi, *tuple(quat.axis)))
 125
 126                         scale = o.matrix_world.to_scale()
 127                         ss.sub.append(Statement("scale", *tuple(scale)))
 128
 129                         st.sub.append(ss)
 130                         scene_res.statements.append(st)
 131
 132                 progress.set_progress(1.0)
 133
 134                 return scene_res