__init__.py

    unlock_parameters = BoolProperty(name="Lock",default = False)
    
    curveshape = EnumProperty(
            name="Povray Shape Type",
            items=(("birail", "Birail", ""),
                   ("cairo", "Cairo", ""),
                   ("lathe", "Lathe", ""),
                   ("loft", "Loft", ""),
                   ("prism", "Prism", ""),
                   ("sphere_sweep", "Sphere Sweep", "")),
            default="sphere_sweep")
            
    mesh_write_as = EnumProperty(
            name="Mesh Write As",
            items=(("blobgrid", "Blob Grid", ""),
                   ("grid", "Grid", ""),
                   ("mesh", "Mesh", "")),
            default="mesh")
    # shape_as_light = StringProperty(name="Light",maxlen=1024)

    # object_ior = FloatProperty(
            # name="IOR", description="IOR",
            # min=1.0, max=10.0,default=1.0)
    # fake_caustics_power = FloatProperty(
            # name="Power", description="Fake caustics power",
            # min=0.0, max=10.0,default=0.0)
    # target = BoolProperty(name="Target",description="",default=False)
    # target_value = FloatProperty(
            # name="Value", description="",
            # min=0.0, max=1.0,default=1.0)
    # refraction = BoolProperty(name="Refraction",description="",default=False)
    # dispersion = BoolProperty(name="Dispersion",description="",default=False)
    # dispersion_value = FloatProperty(
            # name="Dispersion", description="Good values are 1.01 to 1.1. ",
            # min=1.0, max=1.2,default=1.01)
    # dispersion_samples = IntProperty(name="Samples",min=2, max=100,default=7)
    # reflection = BoolProperty(name="Reflection",description="",default=False)
    # pass_through = BoolProperty(name="Pass through",description="",default=False)
    no_shadow = BoolProperty(name="No Shadow",default=False)
    
    no_image = BoolProperty(name="No Image",default=False)
    
    no_reflection = BoolProperty(name="No Reflection",default=False)
    
    no_radiosity = BoolProperty(name="No Radiosity",default=False)
    
    inverse = BoolProperty(name="Inverse",default=False)
    
    sturm = BoolProperty(name="Sturm",default=False)
    
    double_illuminate = BoolProperty(name="Double Illuminate",default=False)
    
    hierarchy = BoolProperty(name="Hierarchy",default=False)
    
    hollow = BoolProperty(name="Hollow",default=False)
    
    boundorclip = EnumProperty(
            name="Boundorclip",
            items=(("none", "None", ""),
                   ("bounded_by", "Bounded_by", ""),
                   ("clipped_by", "Clipped_by", "")),
            default="none")
    boundorclipob = StringProperty(maxlen=1024)
    
    addboundorclip = BoolProperty(description="",default=False)
    
    blob_threshold = FloatProperty(name="Threshold",min=0.00, max=10.0, default=0.6)

    blob_strength = FloatProperty(name="Strength",min=-10.00, max=10.0, default=1.00)
    
    res_u = IntProperty(name="U",min=100, max=1000, default=500)
    
    res_v = IntProperty(name="V",min=100, max=1000, default=500)
    
    contained_by = EnumProperty(
            name="Contained by",
            items=(("box", "Box", ""),
                   ("sphere", "Sphere", "")),
            default="box")
            
    container_scale = FloatProperty(name="Container Scale",min=0.0, max=10.0, default=1.00)
    
    threshold = FloatProperty(name="Threshold",min=0.0, max=10.0, default=0.00)
    
    accuracy = FloatProperty(name="Accuracy",min=0.0001, max=0.1, default=0.001)
    
    max_gradient = FloatProperty(name="Max Gradient",min=0.0, max=100.0, default=5.0)
    
    all_intersections = BoolProperty(name="All Intersections",default=False)
    
    max_trace = IntProperty(name="Max Trace",min=1, max=100,default=1)


    def prop_update_cylinder(self, context):
        if bpy.ops.pov.cylinder_update.poll():
            bpy.ops.pov.cylinder_update()
    cylinder_radius = FloatProperty(name="Cylinder R",min=0.00, max=10.0, default=0.04, update=prop_update_cylinder)
    cylinder_location_cap = FloatVectorProperty(
            name="Cylinder Cap Location", subtype='TRANSLATION',
            description="The position of the 'other' end of the cylinder (relative to object location)",
            default=(0.0, 0.0, 2.0), update=prop_update_cylinder,
    )

    imported_cyl_loc = FloatVectorProperty(
        name="Imported Pov location",
        precision=6, 
        default=(0.0, 0.0, 0.0))
        
    imported_cyl_loc_cap = FloatVectorProperty(
        name="Imported Pov location",
        precision=6, 
        default=(0.0, 0.0, 2.0))

    def prop_update_sphere(self, context):
        bpy.ops.pov.sphere_update()
    sphere_radius = FloatProperty(name="Sphere radius",min=0.00, max=10.0, default=0.5, update=prop_update_sphere)


    def prop_update_cone(self, context):
        bpy.ops.pov.cone_update()

    cone_base_radius = FloatProperty(
        name = "Base radius", description = "The first radius of the cone",
        default = 1.0, min = 0.01, max = 100.0, update=prop_update_cone)
    cone_cap_radius = FloatProperty(
        name = "Cap radius", description = "The second radius of the cone",
        default = 0.3, min = 0.0, max = 100.0, update=prop_update_cone)
        
    cone_segments = IntProperty(
        name = "Segments", description = "Radial segmentation of proxy mesh",
        default = 16, min = 3, max = 265, update=prop_update_cone)

    cone_height = FloatProperty(
        name = "Height", description = "Height of the cone",
        default = 2.0, min = 0.01, max = 100.0, update=prop_update_cone)

    cone_base_z = FloatProperty()
    cone_cap_z = FloatProperty()    

###########Parametric
    def prop_update_parametric(self, context):
        bpy.ops.pov.parametric_update()
    
    u_min = FloatProperty(name = "U Min",
                    description = "",
                    default = 0.0, update=prop_update_parametric)
    v_min = FloatProperty(name = "V Min",
                    description = "",
                    default = 0.0, update=prop_update_parametric)
    u_max = FloatProperty(name = "U Max",
                    description = "",
                    default = 6.28, update=prop_update_parametric)
    v_max = FloatProperty(name = "V Max",
                    description = "",
                    default = 12.57, update=prop_update_parametric)
    x_eq = StringProperty(
                    maxlen=1024, default = "cos(v)*(1+cos(u))*sin(v/8)", update=prop_update_parametric)
    y_eq = StringProperty(
                    maxlen=1024, default = "sin(u)*sin(v/8)+cos(v/8)*1.5", update=prop_update_parametric)
    z_eq = StringProperty(
                    maxlen=1024, default = "sin(v)*(1+cos(u))*sin(v/8)", update=prop_update_parametric)

###########Torus

    def prop_update_torus(self, context):
        bpy.ops.pov.torus_update()
        
    torus_major_segments = IntProperty(
                    name = "Segments", description = "Radial segmentation of proxy mesh",
                    default = 48, min = 3, max = 720, update=prop_update_torus)
    torus_minor_segments = IntProperty(
                    name = "Segments", description = "Cross-section segmentation of proxy mesh",
                    default = 12, min = 3, max = 720, update=prop_update_torus)
    torus_major_radius = FloatProperty(
                    name="Major radius",
                    description="Major radius",
                    min=0.00, max=100.00, default=1.0, update=prop_update_torus)
    torus_minor_radius = FloatProperty(
                    name="Minor radius",
                    description="Minor radius",
                    min=0.00, max=100.00, default=0.25, update=prop_update_torus)


###########Rainbow
    arc_angle = FloatProperty(name = "Arc angle",
                      description = "The angle of the raynbow arc in degrees",
                      default = 360, min = 0.01, max = 360.0)
    falloff_angle = FloatProperty(name = "Falloff angle",
                      description = "The angle after which rainbow dissolves into background",
                      default = 360, min = 0.0, max = 360)

###########HeightFields 

    quality = IntProperty(name = "Quality",
                      description = "",
                      default = 100, min = 1, max = 100)
                
    hf_filename = StringProperty(maxlen = 1024)
    
    hf_gamma = FloatProperty(
            name="Gamma",
            description="Gamma",
            min=0.0001, max=20.0, default=1.0)

    hf_premultiplied = BoolProperty(
            name="Premultiplied",
            description="Premultiplied",
            default=True)

    hf_smooth = BoolProperty(
            name="Smooth",
            description="Smooth",
            default=False)

    hf_water = FloatProperty(
            name="Water Level",
            description="Wather Level",
            min=0.00, max=1.00, default=0.0)

    hf_hierarchy = BoolProperty(
            name="Hierarchy",
            description="Height field hierarchy",
            default=True)
 
##############Superellipsoid
    def prop_update_superellipsoid(self, context):
        bpy.ops.pov.superellipsoid_update()

    se_param1 = FloatProperty(
            name="Parameter 1",
            description="",
            min=0.00, max=10.0, default=0.04)

    se_param2 = FloatProperty(
            name="Parameter 2",
            description="",
            min=0.00, max=10.0, default=0.04)
            
    se_u = IntProperty(name = "U-segments",
                    description = "radial segmentation",
                    default = 20, min = 4, max = 265,
                    update=prop_update_superellipsoid)
    se_v = IntProperty(name = "V-segments",
                    description = "lateral segmentation",
                    default = 20, min = 4, max = 265,
                    update=prop_update_superellipsoid)
    se_n1 = FloatProperty(name = "Ring manipulator",
                    description = "Manipulates the shape of the Ring",
                    default = 1.0, min = 0.01, max = 100.0,
                    update=prop_update_superellipsoid)
    se_n2 = FloatProperty(name = "Cross manipulator",
                    description = "Manipulates the shape of the cross-section",
                    default = 1.0, min = 0.01, max = 100.0,
                    update=prop_update_superellipsoid)
    se_edit = EnumProperty(items=[("NOTHING", "Nothing", ""),
                                ("NGONS", "N-Gons", ""),
                                ("TRIANGLES", "Triangles", "")],
                    name="Fill up and down",
                    description="",
                    default='TRIANGLES',
                    update=prop_update_superellipsoid)
#############Used for loft and Superellipsoid, etc.
    curveshape = EnumProperty(
            name="Povray Shape Type",
            items=(("birail", "Birail", ""),
                   ("cairo", "Cairo", ""),
                   ("lathe", "Lathe", ""),
                   ("loft", "Loft", ""),
                   ("prism", "Prism", ""),
                   ("sphere_sweep", "Sphere Sweep", ""),
                   ("sor", "Surface of Revolution", "")),
            default="sphere_sweep")
            
#############Supertorus
    def prop_update_supertorus(self, context):
        bpy.ops.pov.supertorus_update()
        
    st_major_radius = FloatProperty(
            name="Major radius",
            description="Major radius",
            min=0.00, max=100.00, default=1.0,
            update=prop_update_supertorus)

    st_minor_radius = FloatProperty(
            name="Minor radius",
            description="Minor radius",
            min=0.00, max=100.00, default=0.25,
            update=prop_update_supertorus)

    st_ring = FloatProperty(
            name="Ring",
            description="Ring manipulator",
            min=0.0001, max=100.00, default=1.00,
            update=prop_update_supertorus)

    st_cross = FloatProperty(
            name="Cross",
            description="Cross manipulator",
            min=0.0001, max=100.00, default=1.00,
            update=prop_update_supertorus)

    st_accuracy = FloatProperty(
            name="Accuracy",
            description="Supertorus accuracy",
            min=0.00001, max=1.00, default=0.001)

    st_max_gradient = FloatProperty(
            name="Gradient",
            description="Max gradient",
            min=0.0001, max=100.00, default=10.00,
            update=prop_update_supertorus)
            
    st_R = FloatProperty(name = "big radius",
                      description = "The radius inside the tube",
                      default = 1.0, min = 0.01, max = 100.0,
                      update=prop_update_supertorus)
    st_r = FloatProperty(name = "small radius",
                      description = "The radius of the tube",
                      default = 0.3, min = 0.01, max = 100.0,
                      update=prop_update_supertorus)
    st_u = IntProperty(name = "U-segments",
                    description = "radial segmentation",
                    default = 16, min = 3, max = 265,
                    update=prop_update_supertorus)
    st_v = IntProperty(name = "V-segments",
                    description = "lateral segmentation",
                    default = 8, min = 3, max = 265,
                    update=prop_update_supertorus)
    st_n1 = FloatProperty(name = "Ring manipulator",
                      description = "Manipulates the shape of the Ring",
                      default = 1.0, min = 0.01, max = 100.0,
                      update=prop_update_supertorus)
    st_n2 = FloatProperty(name = "Cross manipulator",
                      description = "Manipulates the shape of the cross-section",
                      default = 1.0, min = 0.01, max = 100.0,
                      update=prop_update_supertorus)
    st_ie = BoolProperty(name = "Use Int.+Ext. radii",
                      description = "Use internal and external radii",
                      default = False,
                      update=prop_update_supertorus)
    st_edit = BoolProperty(name="",
                        description="",
                        default=False,
                        options={'HIDDEN'},
                        update=prop_update_supertorus)

########################Loft
    loft_n = IntProperty(name = "Segments",
                    description = "Vertical segments",
                    default = 16, min = 3, max = 720)
    loft_rings_bottom = IntProperty(name = "Bottom",
                    description = "Bottom rings",
                    default = 5, min = 2, max = 100)
    loft_rings_side = IntProperty(name = "Side",
                    description = "Side rings",
                    default = 10, min = 2, max = 100)
    loft_thick = FloatProperty(name = "Thickness",
                      description = "Manipulates the shape of the Ring",
                      default = 0.3, min = 0.01, max = 1.0)
    loft_r = FloatProperty(name = "Radius",
                      description = "Radius",
                      default = 1, min = 0.01, max = 10)
    loft_height = FloatProperty(name = "Height",
                      description = "Manipulates the shape of the Ring",
                      default = 2, min = 0.01, max = 10.0)       

###################Prism                     
    prism_n = IntProperty(name = "Sides",
                    description = "Number of sides",
                    default = 5, min = 3, max = 720)
    prism_r = FloatProperty(name = "Radius",
                    description = "Radius",
                    default = 1.0)

##################Isosurface
    iso_function_text = StringProperty(name="Function Text",maxlen=1024)#,update=iso_props_update_callback)
    
##################PolygonToCircle
    polytocircle_resolution = IntProperty(name = "Resolution",
                    description = "",
                    default = 3, min = 0, max = 256)
    polytocircle_ngon = IntProperty(name = "NGon",
                    description = "",
                    min = 3, max = 64,default = 5)
    polytocircle_ngonR = FloatProperty(name = "NGon Radius",
                    description = "",
                    default = 0.3)
    polytocircle_circleR = FloatProperty(name = "Circle Radius",
                    description = "",
                    default = 1.0)

#################Avogadro
    # filename_ext = ".png"
    
    # filter_glob = StringProperty(
            # default="*.exr;*.gif;*.hdr;*.iff;*.jpeg;*.jpg;*.pgm;*.png;*.pot;*.ppm;*.sys;*.tga;*.tiff;*.EXR;*.GIF;*.HDR;*.IFF;*.JPEG;*.JPG;*.PGM;*.PNG;*.POT;*.PPM;*.SYS;*.TGA;*.TIFF",
            # options={'HIDDEN'},
            # )
                    
###############################################################################
# Camera POV properties.
###############################################################################
class RenderPovSettingsCamera(PropertyGroup):
    #DOF Toggle
    dof_enable = BoolProperty(
            name="Depth Of Field", description="EnablePOV-Ray Depth Of Field ",
            default=False)

    # Aperture (Intensity of the Blur)
    dof_aperture = FloatProperty(
            name="Aperture",
            description="Similar to a real camera's aperture effect over focal blur (though not "
                        "in physical units and independant of focal length). "
                        "Increase to get more blur",
            min=0.01, max=1.00, default=0.50)

    # Aperture adaptive sampling
    dof_samples_min = IntProperty(
            name="Samples Min", description="Minimum number of rays to use for each pixel",
            min=1, max=128, default=3)

    dof_samples_max = IntProperty(
            name="Samples Max", description="Maximum number of rays to use for each pixel",
            min=1, max=128, default=9)

    dof_variance = IntProperty(
            name="Variance",
            description="Minimum threshold (fractional value) for adaptive DOF sampling (up "
                        "increases quality and render time). The value for the variance should "
                        "be in the range of the smallest displayable color difference",
            min=1, max=100000, soft_max=10000, default=8192)

    dof_confidence = FloatProperty(
            name="Confidence",
            description="Probability to reach the real color value. Larger confidence values "
                        "will lead to more samples, slower traces and better images",
            min=0.01, max=0.99, default=0.20)

    ##################################CustomPOV Code############################
    # Only DUMMIES below for now:
    replacement_text = StringProperty(
            name="Texts in blend file",
            description="Type the declared name in custom POV code or an external .inc "
                        "it points at. camera {} expected",
            default="")


            
###############################################################################
# Text POV properties.
###############################################################################
class RenderPovSettingsText(PropertyGroup):
    custom_code = BoolProperty(
            name="Custom Code",
            description="Add this text at the top of the exported POV-Ray file",
            default=False)


###############################################################################
# Povray Preferences.
###############################################################################
class PovrayPreferences(AddonPreferences):
    bl_idname = __name__

    branch_feature_set_povray = EnumProperty(
                name="Feature Set",
                description="Choose between official (POV-Ray) or (UberPOV) "
                            "development branch features to write in the pov file",
                items= (('povray', 'Official POV-Ray', '','PLUGIN', 0),
                        ('uberpov', 'Unofficial UberPOV', '', 'PLUGIN', 1)),
                default='povray'
                )
    
    filepath_povray = StringProperty(
                name="Binary Location",
                description="Path to renderer executable",
                subtype='FILE_PATH',
                )
    def draw(self, context):
        layout = self.layout
        layout.prop(self, "branch_feature_set_povray")
        layout.prop(self, "filepath_povray")

       

def register():
    bpy.utils.register_module(__name__)
    bpy.types.INFO_MT_add.prepend(ui.menu_func_add)
    bpy.types.INFO_MT_file_import.append(ui.menu_func_import)
    #used for parametric objects:
    addon_utils.enable("add_mesh_extra_objects", default_set=False, persistent=True)
    
    #bpy.types.TEXTURE_PT_context_texture.prepend(TEXTURE_PT_povray_type)
    bpy.types.Scene.pov = PointerProperty(type=RenderPovSettingsScene)
    bpy.types.Material.pov = PointerProperty(type=RenderPovSettingsMaterial)
    bpy.types.Texture.pov = PointerProperty(type=RenderPovSettingsTexture)
    bpy.types.Object.pov = PointerProperty(type=RenderPovSettingsObject)
    bpy.types.Camera.pov = PointerProperty(type=RenderPovSettingsCamera)
    bpy.types.Text.pov = PointerProperty(type=RenderPovSettingsText)
    


def unregister():
    #bpy.types.TEXTURE_PT_context_texture.remove(TEXTURE_PT_povray_type)
    del bpy.types.Scene.pov
    del bpy.types.Material.pov
    del bpy.types.Texture.pov
    del bpy.types.Object.pov
    del bpy.types.Camera.pov
    del bpy.types.Text.pov
    
    addon_utils.disable("add_mesh_extra_objects", default_set=False)
    bpy.types.INFO_MT_file_import.remove(ui.menu_func_import)
    bpy.types.INFO_MT_add.remove(ui.menu_func_add)
    bpy.utils.unregister_module(__name__)


if __name__ == "__main__":
    register()