blender/io_mspgl/export_scene.py

   1 import math
   2 import os
   3
   4 class SceneExporter:
   5         def export_to_file(self, context, out_fn, *, selected_only=False, visible_only=True, collection=True, skip_existing=True):
   6                 from .util import Progress
   7                 progress = Progress(context)
   8
   9                 from .scene import create_scene_from_current
  10                 scene = create_scene_from_current(context, selected_only=selected_only, visible_only=visible_only)
  11
  12                 resources = {}
  13                 self.export_scene_resources(context, scene, resources, progress)
  14                 scene_res = self.export_scene(scene, resources)
  15                 progress.set_progress(1.0)
  16
  17                 path, base = os.path.split(out_fn)
  18                 base, ext = os.path.splitext(base)
  19
  20                 if collection:
  21                         existing = None
  22                         if skip_existing:
  23                                 existing = lambda r: not os.path.exists(os.path.join(path, r.name))
  24                         scene_res.write_collection(out_fn, filter=existing)
  25                 else:
  26                         scene_res.write_to_file(out_fn)
  27                         for r in scene_res.collect_references():
  28                                 r.write_to_file(os.path.join(path, r.name))
  29
  30         def export_scene_resources(self, context, scene, resources, progress):
  31                 from .export import DataExporter
  32                 data_exporter = DataExporter()
  33
  34                 data_exporter.export_resources(context, scene.prototypes, resources, None, progress)
  35
  36         def export_scene(self, scene, resources):
  37                 from .datafile import Resource, Statement, Token
  38                 scene_res = Resource(scene.name+".scene", "scene")
  39
  40                 if scene.background_set:
  41                         scene_res.statements.append(Statement("type", Token("ordered")))
  42                         if scene.background_set:
  43                                 scene_res.statements.append(scene_res.create_reference_statement("scene", resources[scene.background_set.name+".scene"]))
  44
  45                         st = Statement("scene")
  46                         st.sub.append(Statement("type", Token("simple")))
  47                         self.add_instances(scene_res, st.sub, scene.instances, resources)
  48                         scene_res.statements.append(st)
  49                 else:
  50                         scene_res.statements.append(Statement("type", Token("simple")))
  51
  52                         self.add_instances(scene_res, scene_res.statements, scene.instances, resources)
  53
  54                 return scene_res
  55
  56         def add_instances(self, scene_res, statements, instances, resources):
  57                 from .datafile import Statement
  58
  59                 for i in instances:
  60                         obj_res = resources[i.prototype+".object"]
  61                         st = scene_res.create_reference_statement("object", obj_res, i.name)
  62
  63                         ss = Statement("transform")
  64
  65                         loc = i.matrix_world.to_translation()
  66                         ss.sub.append(Statement("position", *tuple(loc)))
  67
  68                         quat = i.matrix_world.to_quaternion()
  69                         if i.rotation_mode in ('XYZ', 'XZY', 'YXZ', 'YZX', 'ZXY', 'ZYX'):
  70                                 angles = [a*180/math.pi for a in quat.to_euler()]
  71                                 ss.sub.append(Statement("euler", *angles));
  72                         else:
  73                                 ss.sub.append(Statement("rotation", quat.angle*180/math.pi, *tuple(quat.axis)))
  74
  75                         scale = i.matrix_world.to_scale()
  76                         ss.sub.append(Statement("scale", *tuple(scale)))
  77
  78                         st.sub.append(ss)
  79                         statements.append(st)
  80
  81         def export_sequence_resources(self, scene, resources):
  82                 from .datafile import Resource, Statement, Token
  83
  84                 lights = []
  85                 s = scene
  86                 while s:
  87                         lights += s.lights
  88                         s = s.background_set
  89
  90                 from .util import make_unique
  91                 lights = make_unique(lights)
  92
  93                 from .export_light import LightExporter
  94                 light_exporter = LightExporter()
  95                 for l in lights:
  96                         light_name = l.name+".light"
  97                         if light_name not in resources:
  98                                 resources[light_name] = light_exporter.export_light(l)
  99
 100                 lighting_name = scene.name+".lightn"
 101                 if lighting_name not in resources:
 102                         lighting_res = Resource(lighting_name, "lighting")
 103                         lighting_res.statements.append(Statement("ambient", *tuple(scene.ambient_light)))
 104                         for l in lights:
 105                                 lighting_res.statements.append(lighting_res.create_reference_statement("light", resources[l.name+".light"]))
 106
 107                         resources[lighting_name] = lighting_res
 108
 109         def export_sequence(self, scene, resources):
 110                 from .datafile import Resource, Statement, Token
 111                 seq_res = Resource(scene.name+".seq", "sequence")
 112
 113                 if scene.use_hdr:
 114                         seq_res.statements.append(Statement("hdr", True))
 115
 116                 ss = Statement("clear")
 117                 ss.sub.append(Statement("color", 0.0, 0.0, 0.0, 0.0))
 118                 ss.sub.append(Statement("depth", 1.0))
 119                 seq_res.statements.append(ss)
 120
 121                 ss = Statement("step", "", "content")
 122                 ss.sub.append(Statement("depth_test", Token("LEQUAL")))
 123                 ss.sub.append(seq_res.create_reference_statement("lighting", resources[scene.name+".lightn"]))
 124                 ss.sub.append(seq_res.create_reference_statement("scene", resources[scene.name+".scene"]))
 125                 seq_res.statements.append(ss)
 126
 127                 if scene.use_ao:
 128                         ss = Statement("ambient_occlusion")
 129                         ss.sub.append(Statement("occlusion_radius", scene.ao_distance))
 130                         ss.sub.append(Statement("samples", scene.ao_samples))
 131                         seq_res.statements.append(ss)
 132
 133                 if scene.use_hdr:
 134                         seq_res.statements.append(Statement("bloom"))
 135                         ss = Statement("colorcurve")
 136                         ss.sub.append(Statement("exposure_adjust", scene.exposure))
 137                         ss.sub.append(Statement("srgb"))
 138                         seq_res.statements.append(ss)
 139                 else:
 140                         # Add a colorcurve with linear response to convert into sRGB color space
 141                         ss = Statement("colorcurve")
 142                         ss.sub.append(Statement("brightness_response", 1.0))
 143                         ss.sub.append(Statement("srgb"))
 144                         seq_res.statements.append(ss)
 145
 146                 return seq_res