blender/io_mspgl/export_object.py

   1 import os
   2
   3 def linear_to_srgb(l):
   4         if l<0.0031308:
   5                 return 12.92*l
   6         else:
   7                 return 1.055*(l**(1/2.4))-0.055
   8
   9
  10 class ObjectExporter:
  11         def __init__(self):
  12                 self.material_tex = False
  13                 self.srgb_colors = True
  14                 self.textures = "REF"
  15                 self.separate_mesh = False
  16
  17         def export(self, context, out_file):
  18                 from .outfile import open_output
  19                 out_file = open_output(out_file)
  20
  21                 from .export_mesh import MeshExporter
  22                 mesh_export = MeshExporter()
  23                 for k, v in self.__dict__.items():
  24                         setattr(mesh_export, k, v)
  25
  26                 if self.separate_mesh:
  27                         path, base = os.path.split(out_file.filename)
  28                         base, ext = os.path.splitext(base)
  29                         mesh_out = open_output(os.path.join(path, base+".mesh"))
  30                         mesh = mesh_export.export(context, mesh_out)
  31                         out_file.write("mesh", "\""+base+".mesh\"")
  32                 else:
  33                         out_file.begin("mesh")
  34                         mesh = mesh_export.export(context, out_file)
  35                         out_file.end()
  36
  37                 out_file.begin("technique")
  38                 out_file.begin("pass", '""')
  39                 if mesh.materials:
  40                         if self.srgb_colors:
  41                                 cm = linear_to_srgb
  42                         else:
  43                                 cm = lambda x: x
  44
  45                         if self.material_tex:
  46                                 out_file.begin("material")
  47                                 out_file.write("diffuse", 1.0, 1.0, 1.0, 1.0)
  48                                 out_file.end()
  49                                 index = 0
  50                                 for u in mesh.uv_layers:
  51                                         if u.name=="material_tex":
  52                                                 index = u.unit
  53                                 out_file.begin("texunit", index)
  54                                 out_file.begin("texture2d")
  55                                 out_file.write("min_filter", "NEAREST")
  56                                 out_file.write("mag_filter", "NEAREST")
  57                                 out_file.write("storage", "RGB", len(mesh.materials), 1)
  58                                 texdata = '"'
  59                                 for m in mesh.materials:
  60                                         color = [int(cm(c)*255) for c in m.diffuse_color]
  61                                         texdata += "\\x%02X\\x%02X\\x%02X"%tuple(color)
  62                                 texdata += '"'
  63                                 out_file.write("raw_data", texdata)
  64                                 out_file.end()
  65                                 out_file.end()
  66                         else:
  67                                 mat = mesh.materials[0]
  68                                 out_file.begin("material")
  69                                 if any((s and s.use_map_color_diffuse) for s in mat.texture_slots):
  70                                         out_file.write("diffuse", 1.0, 1.0, 1.0, 1.0)
  71                                         amb = cm(mat.ambient)
  72                                         out_file.write("ambient", amb, amb, amb, 1.0)
  73                                 else:
  74                                         diff = mat.diffuse_color
  75                                         out_file.write("diffuse", cm(diff.r), cm(diff.g), cm(diff.b), 1.0)
  76                                         amb = diff*mat.ambient
  77                                         out_file.write("ambient", cm(amb.r), cm(amb.g), cm(amb.b), 1.0)
  78                                 spec = mat.specular_color*mat.specular_intensity
  79                                 out_file.write("specular", spec.r, spec.g, spec.b, 1.0)
  80                                 out_file.write("shininess", mat.specular_hardness);
  81                                 out_file.end()
  82
  83                         if self.textures!="NONE":
  84                                 for slot in mesh.materials[0].texture_slots:
  85                                         if not slot:
  86                                                 continue
  87
  88                                         tex = slot.texture
  89                                         if tex.type!="IMAGE":
  90                                                 continue
  91
  92                                         if slot.uv_layer:
  93                                                 for u in mesh.uv_layers:
  94                                                         if u.name==slot.uv_layer:
  95                                                                 index = u.unit
  96                                         else:
  97                                                 index = mesh.uv_layers[0].unit
  98
  99                                         out_file.begin("texunit", index)
 100                                         if self.textures=="INLINE":
 101                                                 out_file.begin("texture2d")
 102                                                 out_file.write("min_filter", "LINEAR")
 103                                                 out_file.write("storage", "RGBA", tex.image.size[0], tex.image.size[1])
 104                                                 texdata = '"'
 105                                                 for p in tex.image.pixels:
 106                                                         texdata += "\\x%02X"%int(p*255)
 107                                                 texdata += '"'
 108                                                 out_file.write("raw_data", texdata)
 109                                                 out_file.end()
 110                                         else:
 111                                                 out_file.write("texture", '"%s"'%tex.image.name)
 112                                         out_file.end()
 113
 114                 out_file.end()
 115                 out_file.end()