io_radiance_lighting_export.py

# ##### BEGIN GPL LICENSE BLOCK #####
#
#  This program is free software; you can redistribute it and/or
#  modify it under the terms of the GNU General Public License
#  as published by the Free Software Foundation; either version 2
#  of the License, or (at your option) any later version.
#
#  This program is distributed in the hope that it will be useful,
#  but WITHOUT ANY WARRANTY; without even the implied warranty of
#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#  GNU General Public License for more details.
#
#  You should have received a copy of the GNU General Public License
#  along with this program; if not, write to the Free Software Foundation,
#  Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
#
# ##### END GPL LICENSE BLOCK #####

# <pep8 compliant>

bl_info = {
    "name": "Export Radiance Lighting Files",
    "description": "Export Radiance Lighting Files",
    "author": "Francesco Anselmo",
    "version": (0, 1),
    "blender": (2, 57, 0),
    "location": "File > Export > Export Radiance Lighting Files (.lum)",
    "warning": "",
    "wiki_url":"",
    "category": "Import-Export",
}



import bpy
from mathutils import Vector
from os.path import splitext
from math import degrees

def write_lighting(context, filepath, frame_start, frame_end, only_selected=False):

    fn = splitext(filepath)[0]

    scene = bpy.context.scene

    lighting = []

    for obj in scene.objects:
        if only_selected and not obj.select:
            continue
        if obj.type != 'LAMP':
            continue

        lighting.append((obj, obj.data))

    frame_range = range(frame_start, frame_end + 1)

    lumname = fn +'.lum'
    fn = lumname
    f = open(fn,'w')


    for obj, obj_data in lighting:
    
        if obj.type=='LAMP':
            #name = bpy.path.clean_name(obj.name)
            name = obj.name
            #print(obj.type)
            #print(name)
            #print(dir(obj.data))
            ies = obj_data.name
            #print(obj.location)
            x,y,z = obj.location
            #print(x,y,z)
            rx,ry,rz = obj.matrix_world.to_euler()
            #print(rx, ry, rz)
            rx = degrees(rx)
            ry = degrees(ry)
            rz = degrees(rz)
            #print(rx, ry, rz)
            #print(dir(obj.matrix_world))
            xform = '!xform -rx %s -ry %s -rz %s -t %s %s %s %s.rad # %s\n' % (rx, ry, rz, x, y, z, ies, name)
            print(xform)
            f.write(xform)
            

        #obj.select = False

   
    f.close()
    print("written:", fn)
    

        
from bpy.props import StringProperty, IntProperty, BoolProperty
from bpy_extras.io_utils import ExportHelper


class LightingExporter(bpy.types.Operator, ExportHelper):
    """Export Blender Lamps to Radiance Lighting files"""
    
    bl_idname = "export.radiance_lighting"

    bl_label = "Export Radiance Lighting Files"

    filename_ext = ".lum"
    filter_glob = StringProperty(default="*.lum", options={'HIDDEN'})

    frame_start = IntProperty(name="Start Frame",
            description="Start frame for export",
            default=1, min=1, max=300000)
    frame_end = IntProperty(name="End Frame",
            description="End frame for export",
            default=1, min=1, max=300000)
    only_selected = BoolProperty(name="Only Selected",
            default=True)
            

    def execute(self, context):
        write_lighting(context, self.filepath, self.frame_start, self.frame_start, self.only_selected)
        return {'FINISHED'}

    def invoke(self, context, event):
        self.frame_start = context.scene.frame_start
        self.frame_end = context.scene.frame_end

        wm = context.window_manager
        wm.fileselect_add(self)
        return {'RUNNING_MODAL'}


def menu_export(self, context):
    import os
    default_path = os.path.splitext(bpy.data.filepath)[0] + ".py"
    self.layout.operator(LightingExporter.bl_idname, text="Radiance Lighting Files (.lum)").filepath = default_path


def register():
    bpy.utils.register_module(__name__)
    bpy.types.INFO_MT_file_export.append(menu_export)


def unregister():
    bpy.utils.unregister_module(__name__)
    bpy.types.INFO_MT_file_export.remove(menu_export)


if __name__ == "__main__":
    register()