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radiosity_import.py

#!BPY

"""
Name: 'Radiosity (.radio)...'
Blender: 232
Group: 'Import'
Tooltip: 'Import Radiosity File Format (.radio) with vertex colors'
"""

__author__ = "Anthony D'Agostino (Scorpius)"
__url__ = ("blender", "elysiun",
"Author's homepage, http://www.redrival.com/scorpius")
__version__ = "Part of IOSuite 0.5"

__bpydoc__ = """\
This script imports Radiosity files to Blender.

The Radiosity file format is my own personal format. I created it to
learn how meshes and vertex colors were stored. See IO-Examples.zip, the
example *.radio files on my web page.

Usage:<br>
      Execute this script from the "File->Import" menu and choose a Radiosity
file to open.
"""

# $Id: radiosity_import.py,v 1.6 2004/11/30 02:27:46 ianwill Exp $
#
# +---------------------------------------------------------+
# | Copyright (c) 2002 Anthony D'Agostino                   |
# | http://www.redrival.com/scorpius                        |
# | scorpius@netzero.com                                    |
# | April 11, 2002                                          |
# | Released under the Blender Artistic Licence (BAL)       |
# | Import Export Suite v0.5                                |
# +---------------------------------------------------------+
# | Read and write Radiosity File Format (*.radio)          |
# +---------------------------------------------------------+

import Blender, mod_meshtools
#import time

try:
      import struct
except:
      msg = "Error: you need a full Python install to run this script."
      mod_meshtools.print_boxed(msg)
      Blender.Draw.PupMenu("ERROR%t|"+msg)

# ===============================
# ====== Read Radio Format ======
# ===============================
def read(filename):
      #start = time.clock()
      file = open(filename, "rb")
      mesh = Blender.NMesh.GetRaw()
      #mesh.addMaterial(Blender.Material.New())

      # === Object Name ===
      namelen, = struct.unpack("<h",  file.read(2))
      objname, = struct.unpack("<"+`namelen`+"s", file.read(namelen))

      # === Vertex List ===
      numverts, = struct.unpack("<l", file.read(4))
      for i in range(numverts):
            if not i%100 and mod_meshtools.show_progress:
                  Blender.Window.DrawProgressBar(float(i)/numverts, "Reading Verts")
            x, y, z = struct.unpack("<fff", file.read(12))
            mesh.verts.append(Blender.NMesh.Vert(x, y, z))

      # === Face List ===
      numfaces, = struct.unpack("<l", file.read(4))
      for i in range(numfaces):
            if not i%100 and mod_meshtools.show_progress:
                  Blender.Window.DrawProgressBar(float(i)/numfaces, "Reading Faces")

            face = Blender.NMesh.Face()
            numfaceverts, = struct.unpack("<b", file.read(1))

            for j in range(numfaceverts):
                  index, = struct.unpack("<h", file.read(2))
                  face.v.append(mesh.verts[index])

            for j in range(4):
                  r, g, b, a = struct.unpack("<BBBB", file.read(4))
                  vertexcolor = Blender.NMesh.Col(r, g, b, a)
                  face.col.append(vertexcolor)

            if len(face.v) == 3:
                  face.uv = [ (0,0), (0,1), (1,1) ]
            else:
                  face.uv = [ (0,0), (0,1), (1,1), (1,0) ]

            face.mode = 0
            mesh.faces.append(face)

      # ->tools.create_mesh(verts, faces, objname):
      Blender.NMesh.PutRaw(mesh, objname)
      object = Blender.Object.GetSelected()
      object[0].name=objname
      # ->tools.create_mesh(verts, faces, objname):

      Blender.Window.DrawProgressBar(1.0, '')  # clear progressbar
      file.close()
      #end = time.clock()
      #seconds = " in %.2f %s" % (end-start, "seconds")
      message = "Successfully imported " + Blender.sys.basename(filename)# + seconds
      mod_meshtools.print_boxed(message)

def fs_callback(filename):
      read(filename)

Blender.Window.FileSelector(fs_callback, "Import Radio")

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