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                                 for i in range(min(len(c.name), len(prefix))):
  43                                         if c.name[i]!=prefix[i]:
  44                                                 prefix = prefix[:i]
  45                                                 break
  46
  47                         if prefix:
  48                                 export_names[o.name+".object"] = prefix.strip(" .")+".object"
  49
  50                         unique_objects.append(o)
  51                         for c in clones:
  52                                 object_prototypes[c.name] = o
  53
  54                 from .util import Progress
  55                 progress = Progress(self.show_progress and context)
  56
  57                 resources = {}
  58                 self.export_scene_resources(context, unique_objects, resources, progress)
  59                 for n, r in resources.items():
  60                         if r.name in export_names:
  61                                 r.name = export_names[r.name]
  62
  63                 scene_res = self.export_scene(context, objs, progress, prototypes=object_prototypes, resources=resources)
  64                 refs = scene_res.collect_references()
  65
  66                 from .datafile import Statement
  67                 if self.resource_collection:
  68                         keywords = { ".mat": "material",
  69                                 ".mesh": "mesh",
  70                                 ".object": "object",
  71                                 ".tech": "technique",
  72                                 ".tex2d": "texture2d" }
  73                         with open(os.path.join(path, base+"_resources.mdc"), "w") as res_out:
  74                                 for r in refs:
  75                                         st = Statement(keywords[os.path.splitext(r.name)[1]], r.name)
  76                                         st.sub = r.statements
  77                                         st.write_to_file(res_out)
  78                 else:
  79                         res_dir = os.path.join(path, base+"_resources")
  80                         if not os.path.exists(res_dir):
  81                                 os.makedirs(res_dir)
  82                         for r in refs:
  83                                 with open(os.path.join(res_dir, r.name), "w") as res_out:
  84                                         for s in r.statements:
  85                                                 s.write_to_file(res_out)
  86
  87                 with open(out_fn, "w") as out_file:
  88                         for s in scene_res.statements:
  89                                 s.write_to_file(out_file)
  90
  91         def export_scene_resources(self, context, objs, resources, progress):
  92                 from .export_object import ObjectExporter
  93                 object_export = ObjectExporter()
  94                 object_export.single_file = False
  95
  96                 material_maps = {}
  97
  98                 for i, o in enumerate(objs):
  99                         progress.push_task_slice(o.name, i, len(objs))
 100                         object_export.export_object_resources(context, o, resources, progress, material_maps=material_maps)
 101                         obj_name = o.name+".object"
 102                         resources[obj_name] = object_export.export_object(context, o, progress, resources=resources)
 103                         progress.pop_task()
 104
 105         def export_scene(self, context, objs, progress, *, prototypes, resources):
 106                 from .datafile import Resource, Statement
 107                 scene_res = Resource("scene.scene")
 108
 109                 for o in objs:
 110                         obj_res = resources[prototypes[o.name].name+".object"]
 111                         st = scene_res.create_reference_statement("object", obj_res, o.name)
 112                         # XXX Parent relationships screw up the location and rotation
 113                         st.sub.append(Statement("position", o.location[0], o.location[1], o.location[2]))
 114                         if o.rotation_mode=="AXIS_ANGLE":
 115                                 angle = o.rotation_axis_angle[0]
 116                                 axis = o.rotation_axis_angle[1:]
 117                         else:
 118                                 if o.rotation_mode=="QUATERNION":
 119                                         q = o.rotation_quaternion
 120                                 else:
 121                                         q = o.rotation_euler.to_quaternion()
 122                                 angle = q.angle
 123                                 axis = q.axis
 124                         st.sub.append(Statement("rotation", angle*180/math.pi, axis[0], axis[1], axis[2]))
 125                         st.sub.append(Statement("scale", o.scale[0], o.scale[1], o.scale[2]))
 126                         scene_res.statements.append(st)
 127
 128                 progress.set_progress(1.0)
 129
 130                 return scene_res