primitives.py

    bl_description = "Update Cone"
    bl_options = {'REGISTER', 'UNDO'}
    COMPAT_ENGINES = {'POVRAY_RENDER'}

    @classmethod
    def poll(cls, context):
        engine = context.scene.render.engine
        ob = context.object
        return (ob and ob.data and ob.type == 'MESH' and engine in cls.COMPAT_ENGINES)

    def execute(self, context):
        bpy.ops.object.mode_set(mode="EDIT")
        bpy.ops.mesh.reveal()
        bpy.ops.mesh.select_all(action='SELECT')
        bpy.ops.mesh.delete(type='VERT')
        bpy.ops.object.mode_set(mode="OBJECT")

        pov_cone_define(context, None, context.object)

        return {'FINISHED'}

########################################ISOSURFACES##################################

class POVRAY_OT_isosurface_box_add(bpy.types.Operator):
    """Add the representation of POV isosurface box using also just a Blender mesh cube.

    Flag its primitive type with a specific pov.object_as attribute and lock edit mode
    to keep proxy consistency by hiding edit geometry."""

    bl_idname = "pov.addisosurfacebox"
    bl_label = "Isosurface Box"
    bl_description = "Add Isosurface contained by Box"
    bl_options = {'REGISTER', 'UNDO'}


    def execute(self,context):
        #layers = 20*[False]
        #layers[0] = True
        bpy.ops.mesh.primitive_cube_add()
        ob = context.object
        bpy.ops.object.mode_set(mode="EDIT")
        self.report({'INFO'}, "This native POV-Ray primitive "
                                 "won't have any vertex to show in edit mode")
        bpy.ops.mesh.hide(unselected=False)
        bpy.ops.object.mode_set(mode="OBJECT")
        ob.pov.object_as = "ISOSURFACE"
        ob.pov.contained_by = 'box'
        ob.name = 'PovIsosurfaceBox'
        return {'FINISHED'}

class POVRAY_OT_isosurface_sphere_add(bpy.types.Operator):
    """Add the representation of POV isosurface sphere by a Blender mesh icosphere.

    Flag its primitive type with a specific pov.object_as attribute and lock edit mode
    to keep proxy consistency by hiding edit geometry."""

    bl_idname = "pov.addisosurfacesphere"
    bl_label = "Isosurface Sphere"
    bl_description = "Add Isosurface contained by Sphere"
    bl_options = {'REGISTER', 'UNDO'}


    def execute(self,context):
        #layers = 20*[False]
        #layers[0] = True
        bpy.ops.mesh.primitive_ico_sphere_add(subdivisions=4)
        ob = context.object
        bpy.ops.object.mode_set(mode="EDIT")
        self.report({'INFO'}, "This native POV-Ray primitive "
                                 "won't have any vertex to show in edit mode")
        bpy.ops.mesh.hide(unselected=False)
        bpy.ops.object.mode_set(mode="OBJECT")
        bpy.ops.object.shade_smooth()
        ob.pov.object_as = "ISOSURFACE"
        ob.pov.contained_by = 'sphere'
        ob.name = 'PovIsosurfaceSphere'
        return {'FINISHED'}

class POVRAY_OT_sphere_sweep_add(bpy.types.Operator):
    """Add the representation of POV sphere_sweep using a Blender NURBS curve.

    Flag its primitive type with a specific ob.pov.curveshape attribute and
    leave access to edit mode to keep user editable handles."""

    bl_idname = "pov.addspheresweep"
    bl_label = "Sphere Sweep"
    bl_description = "Create Sphere Sweep along curve"
    bl_options = {'REGISTER', 'UNDO'}

    def execute(self,context):
        #layers = 20*[False]
        #layers[0] = True
        bpy.ops.curve.primitive_nurbs_curve_add()
        ob = context.object
        ob.name = ob.data.name = "PovSphereSweep"
        ob.pov.curveshape = "sphere_sweep"
        ob.data.bevel_depth = 0.02
        ob.data.bevel_resolution = 4
        ob.data.fill_mode = 'FULL'
        #ob.data.splines[0].order_u = 4

        return {'FINISHED'}

class POVRAY_OT_blob_add(bpy.types.Operator):
    """Add the representation of POV blob using a Blender meta ball.

    No need to flag its primitive type as meta are exported to blobs
    and leave access to edit mode to keep user editable thresholds."""

    bl_idname = "pov.addblobsphere"
    bl_label = "Blob Sphere"
    bl_description = "Add Blob Sphere"
    bl_options = {'REGISTER', 'UNDO'}

    def execute(self,context):
        #layers = 20*[False]
        #layers[0] = True
        bpy.ops.object.metaball_add(type = 'BALL')
        ob = context.object
        ob.name = "PovBlob"
        return {'FINISHED'}


class POVRAY_OT_rainbow_add(bpy.types.Operator):
    """Add the representation of POV rainbow using a Blender spot light.

    Rainbows indeed propagate along a visibility cone.
    Flag its primitive type with a specific ob.pov.object_as attribute
    and leave access to edit mode to keep user editable handles.
    Add a constraint to orient it towards camera because POV Rainbows
    are view dependant and having it always initially visible is less
    confusing """

    bl_idname = "pov.addrainbow"
    bl_label = "Rainbow"
    bl_description = "Add Rainbow"
    bl_options = {'REGISTER', 'UNDO'}

    def execute(self,context):
        cam = context.scene.camera
        bpy.ops.object.light_add(type='SPOT', radius=1)
        ob = context.object
        ob.data.show_cone = False
        ob.data.spot_blend = 0.5
        # ob.data.shadow_buffer_clip_end = 0 # deprecated in 2.8
        ob.data.shadow_buffer_clip_start = 4*cam.location.length
        ob.data.distance = cam.location.length
        ob.data.energy = 0
        ob.name = ob.data.name = "PovRainbow"
        ob.pov.object_as = "RAINBOW"

        #obj = context.object
        bpy.ops.object.constraint_add(type='DAMPED_TRACK')



        ob.constraints["Damped Track"].target = cam
        ob.constraints["Damped Track"].track_axis = 'TRACK_NEGATIVE_Z'
        ob.location = -cam.location

        #refocus on the actual rainbow
        bpy.context.view_layer.objects.active = ob
        ob.select_set(True)

        return {'FINISHED'}

class POVRAY_OT_height_field_add(bpy.types.Operator, ImportHelper):
    """Add the representation of POV height_field using a displaced grid.

    texture slot fix and displace modifier will be needed because noise
    displace operator was deprecated in 2.8"""

    bl_idname = "pov.addheightfield"
    bl_label = "Height Field"
    bl_description = "Add Height Field "
    bl_options = {'REGISTER', 'UNDO'}

    # XXX Keep it in sync with __init__'s hf Primitive
    # 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'},
            # )
    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)
    def execute(self,context):
        props = self.properties
        impath = bpy.path.abspath(self.filepath)
        img = bpy.data.images.load(impath)
        im_name = img.name
        im_name, file_extension = os.path.splitext(im_name)
        hf_tex = bpy.data.textures.new('%s_hf_image'%im_name, type = 'IMAGE')
        hf_tex.image = img
        mat = bpy.data.materials.new('Tex_%s_hf'%im_name)
        hf_slot = mat.pov_texture_slots.add()
        hf_slot.texture = hf_tex.name
        #layers = 20*[False]
        #layers[0] = True
        quality = props.quality
        res = 100/quality
        w,h = hf_tex.image.size[:]
        w = int(w/res)
        h = int(h/res)
        bpy.ops.mesh.primitive_grid_add(x_subdivisions=w, y_subdivisions=h,size = 0.5)
        ob = context.object
        ob.name = ob.data.name = '%s'%im_name
        ob.data.materials.append(mat)
        bpy.ops.object.mode_set(mode="EDIT")
        # bpy.ops.mesh.noise(factor=1) # TODO replace by a displace modifier as noise deprecated in 2.8
        bpy.ops.object.mode_set(mode="OBJECT")

        #needs a loop to select by index?
        #bpy.ops.object.material_slot_remove()
        #material just left there for now


        mat.pov_texture_slots.clear()
        bpy.ops.object.mode_set(mode="EDIT")
        bpy.ops.mesh.hide(unselected=False)
        bpy.ops.object.mode_set(mode="OBJECT")
        ob.pov.object_as = 'HEIGHT_FIELD'
        ob.pov.hf_filename = impath
        return {'FINISHED'}


############################TORUS############################################
def pov_torus_define(context, op, ob):
    """Add the representation of POV torus using just a Blender torus.

    But flag its primitive type with a specific pov.object_as attribute and lock edit mode
    to keep proxy consistency by hiding edit geometry."""

    if op:
        mas = op.mas
        mis = op.mis
        mar = op.mar
        mir = op.mir
    else:
        assert(ob)
        mas = ob.pov.torus_major_segments
        mis = ob.pov.torus_minor_segments
        mar = ob.pov.torus_major_radius
        mir = ob.pov.torus_minor_radius

        #keep object rotation and location for the add object operator
        obrot = ob.rotation_euler
        obloc = ob.location

        bpy.ops.object.mode_set(mode="EDIT")
        bpy.ops.mesh.reveal()
        bpy.ops.mesh.select_all(action='SELECT')
        bpy.ops.mesh.delete(type='VERT')
        bpy.ops.mesh.primitive_torus_add(rotation = obrot, location = obloc, major_segments=mas, minor_segments=mis,major_radius=mar, minor_radius=mir)


        bpy.ops.mesh.hide(unselected=False)
        bpy.ops.object.mode_set(mode="OBJECT")


    if not ob:
        bpy.ops.mesh.primitive_torus_add(major_segments=mas, minor_segments=mis,major_radius=mar, minor_radius=mir)
        ob = context.object
        ob.name =  ob.data.name = "PovTorus"
        ob.pov.object_as = "TORUS"
        ob.pov.torus_major_segments = mas
        ob.pov.torus_minor_segments = mis
        ob.pov.torus_major_radius = mar
        ob.pov.torus_minor_radius = mir
        bpy.ops.object.mode_set(mode="EDIT")
        bpy.ops.mesh.hide(unselected=False)
        bpy.ops.object.mode_set(mode="OBJECT")

class POVRAY_OT_torus_add(bpy.types.Operator):
    """Add the representation of POV torus using using pov_torus_define() function."""

    bl_idname = "pov.addtorus"
    bl_label = "Torus"
    bl_description = "Add Torus"
    bl_options = {'REGISTER', 'UNDO'}

    # XXX Keep it in sync with __init__'s torus Primitive
    mas: IntProperty(name = "Major Segments",
                    description = "",
                    default = 48, min = 3, max = 720)
    mis: IntProperty(name = "Minor Segments",
                    description = "",
                    default = 12, min = 3, max = 720)
    mar: FloatProperty(name = "Major Radius",
                    description = "",
                    default = 1.0)
    mir: FloatProperty(name = "Minor Radius",
                    description = "",
                    default = 0.25)
    def execute(self,context):
        props = self.properties
        mar = props.mar
        mir = props.mir
        mas = props.mas
        mis = props.mis
        pov_torus_define(context, self, None)
        self.report({'INFO'}, "This native POV-Ray primitive "
                                 "won't have any vertex to show in edit mode")
        return {'FINISHED'}


class POVRAY_OT_torus_update(bpy.types.Operator):
    """Update the POV torus.

    Delete its previous proxy geometry and rerun pov_torus_define() function
    with the new parameters"""

    bl_idname = "pov.torus_update"
    bl_label = "Update"
    bl_description = "Update Torus"
    bl_options = {'REGISTER', 'UNDO'}
    COMPAT_ENGINES = {'POVRAY_RENDER'}

    @classmethod
    def poll(cls, context):
        engine = context.scene.render.engine
        ob = context.object
        return (ob and ob.data and ob.type == 'MESH' and engine in cls.COMPAT_ENGINES)

    def execute(self, context):

        pov_torus_define(context, None, context.object)

        return {'FINISHED'}

###################################################################################


class POVRAY_OT_prism_add(bpy.types.Operator):
    """Add the representation of POV prism using using an extruded curve."""

    bl_idname = "pov.addprism"
    bl_label = "Prism"
    bl_description = "Create Prism"
    bl_options = {'REGISTER', 'UNDO'}

    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)
    def execute(self,context):

        props = self.properties
        loftData = bpy.data.curves.new('Prism', type='CURVE')
        loftData.dimensions = '2D'
        loftData.resolution_u = 2
        #loftData.show_normal_face = False
        loftData.extrude = 2
        n=props.prism_n
        r=props.prism_r
        coords = []
        z = 0
        angle = 0
        for p in range(n):
            x = r*cos(angle)
            y = r*sin(angle)
            coords.append((x,y,z))
            angle+=pi*2/n
        poly = loftData.splines.new('POLY')
        poly.points.add(len(coords)-1)
        for i, coord in enumerate(coords):
            x,y,z = coord
            poly.points[i].co = (x, y, z, 1)
        poly.use_cyclic_u = True

        ob = bpy.data.objects.new('Prism_shape', loftData)
        scn = bpy.context.scene
        scn.collection.objects.link(ob)
        context.view_layer.objects.active = ob
        ob.select_set(True)
        ob.pov.curveshape = "prism"
        ob.name = ob.data.name = "Prism"
        return {'FINISHED'}

##############################PARAMETRIC######################################
def pov_parametric_define(context, op, ob):
    """Add the representation of POV parametric surfaces by math surface from add mesh extra objects addon."""

    if op:
        u_min = op.u_min
        u_max = op.u_max
        v_min = op.v_min
        v_max = op.v_max
        x_eq = op.x_eq
        y_eq = op.y_eq
        z_eq = op.z_eq

    else:
        assert(ob)
        u_min = ob.pov.u_min
        u_max = ob.pov.u_max
        v_min = ob.pov.v_min
        v_max = ob.pov.v_max
        x_eq = ob.pov.x_eq
        y_eq = ob.pov.y_eq
        z_eq = ob.pov.z_eq

        #keep object rotation and location for the updated object
        obloc = ob.location
        obrot = ob.rotation_euler # In radians
        #Parametric addon has no loc rot, some extra work is needed
        #in case cursor has moved
        curloc = bpy.context.scene.cursor.location


        bpy.ops.object.mode_set(mode="EDIT")
        bpy.ops.mesh.reveal()
        bpy.ops.mesh.select_all(action='SELECT')
        bpy.ops.mesh.delete(type='VERT')
        bpy.ops.mesh.primitive_xyz_function_surface(x_eq=x_eq, y_eq=y_eq, z_eq=z_eq, range_u_min=u_min, range_u_max=u_max, range_v_min=v_min, range_v_max=v_max)
        bpy.ops.mesh.select_all(action='SELECT')
        #extra work:
        bpy.ops.transform.translate(value=(obloc-curloc), proportional_size=1)
        bpy.ops.transform.rotate(axis=obrot, proportional_size=1)

        bpy.ops.mesh.hide(unselected=False)
        bpy.ops.object.mode_set(mode="OBJECT")


    if not ob:
        bpy.ops.mesh.primitive_xyz_function_surface(x_eq=x_eq, y_eq=y_eq, z_eq=z_eq, range_u_min=u_min, range_u_max=u_max, range_v_min=v_min, range_v_max=v_max)
        ob = context.object
        ob.name =  ob.data.name = "PovParametric"
        ob.pov.object_as = "PARAMETRIC"

        ob.pov.u_min = u_min
        ob.pov.u_max = u_max
        ob.pov.v_min = v_min
        ob.pov.v_max = v_max
        ob.pov.x_eq = x_eq
        ob.pov.y_eq = y_eq
        ob.pov.z_eq = z_eq

        bpy.ops.object.mode_set(mode="EDIT")
        bpy.ops.mesh.hide(unselected=False)
        bpy.ops.object.mode_set(mode="OBJECT")

class POVRAY_OT_parametric_add(bpy.types.Operator):
    """Add the representation of POV parametric surfaces using pov_parametric_define() function."""

    bl_idname = "pov.addparametric"
    bl_label = "Parametric"
    bl_description = "Add Paramertic"
    bl_options = {'REGISTER', 'UNDO'}

    # XXX Keep it in sync with __init__'s Parametric primitive
    u_min: FloatProperty(name = "U Min",
                    description = "",
                    default = 0.0)
    v_min: FloatProperty(name = "V Min",
                    description = "",
                    default = 0.0)
    u_max: FloatProperty(name = "U Max",
                    description = "",
                    default = 6.28)
    v_max: FloatProperty(name = "V Max",
                    description = "",
                    default = 12.57)
    x_eq: StringProperty(
                    maxlen=1024, default = "cos(v)*(1+cos(u))*sin(v/8)")
    y_eq: StringProperty(
                    maxlen=1024, default = "sin(u)*sin(v/8)+cos(v/8)*1.5")
    z_eq: StringProperty(
                    maxlen=1024, default = "sin(v)*(1+cos(u))*sin(v/8)")

    def execute(self,context):
        props = self.properties
        u_min = props.u_min
        v_min = props.v_min
        u_max = props.u_max
        v_max = props.v_max
        x_eq = props.x_eq
        y_eq = props.y_eq
        z_eq = props.z_eq

        pov_parametric_define(context, self, None)
        self.report({'INFO'}, "This native POV-Ray primitive "
                                 "won't have any vertex to show in edit mode")
        return {'FINISHED'}

class POVRAY_OT_parametric_update(bpy.types.Operator):
    """Update the representation of POV parametric surfaces.

    Delete its previous proxy geometry and rerun pov_parametric_define() function
    with the new parameters"""

    bl_idname = "pov.parametric_update"
    bl_label = "Update"
    bl_description = "Update parametric object"
    bl_options = {'REGISTER', 'UNDO'}
    COMPAT_ENGINES = {'POVRAY_RENDER'}

    @classmethod
    def poll(cls, context):
        engine = context.scene.render.engine
        ob = context.object
        return (ob and ob.data and ob.type == 'MESH' and engine in cls.COMPAT_ENGINES)

    def execute(self, context):

        pov_parametric_define(context, None, context.object)

        return {'FINISHED'}
#######################################################################

class POVRAY_OT_shape_polygon_to_circle_add(bpy.types.Operator):
    """Add the proxy mesh for POV Polygon to circle lofting macro"""

    bl_idname = "pov.addpolygontocircle"
    bl_label = "Polygon To Circle Blending"
    bl_description = "Add Polygon To Circle Blending Surface"
    bl_options = {'REGISTER', 'UNDO'}
    COMPAT_ENGINES = {'POVRAY_RENDER'}

    # XXX Keep it in sync with __init__'s polytocircle properties
    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)
    def execute(self,context):
        props = self.properties
        ngon = props.polytocircle_ngon
        ngonR = props.polytocircle_ngonR
        circleR = props.polytocircle_circleR
        resolution = props.polytocircle_resolution
        #layers = 20*[False]
        #layers[0] = True
        bpy.ops.mesh.primitive_circle_add(vertices=ngon, radius=ngonR, fill_type='NGON',enter_editmode=True)
        bpy.ops.transform.translate(value=(0, 0, 1))
        bpy.ops.mesh.subdivide(number_cuts=resolution)
        numCircleVerts = ngon + (ngon*resolution)
        bpy.ops.mesh.select_all(action='DESELECT')
        bpy.ops.mesh.primitive_circle_add(vertices=numCircleVerts, radius=circleR, fill_type='NGON',enter_editmode=True)
        bpy.ops.transform.translate(value=(0, 0, -1))
        bpy.ops.mesh.select_all(action='SELECT')
        bpy.ops.mesh.bridge_edge_loops()
        if ngon < 5:
            bpy.ops.mesh.select_all(action='DESELECT')
            bpy.ops.mesh.primitive_circle_add(vertices=ngon, radius=ngonR, fill_type='TRIFAN',enter_editmode=True)
            bpy.ops.transform.translate(value=(0, 0, 1))
            bpy.ops.mesh.select_all(action='SELECT')
            bpy.ops.mesh.remove_doubles()
        bpy.ops.object.mode_set(mode='OBJECT')
        ob = context.object
        ob.name = "Polygon_To_Circle"
        ob.pov.object_as = 'POLYCIRCLE'
        ob.pov.ngon = ngon
        ob.pov.ngonR = ngonR
        ob.pov.circleR = circleR
        bpy.ops.object.mode_set(mode="EDIT")
        bpy.ops.mesh.hide(unselected=False)
        bpy.ops.object.mode_set(mode="OBJECT")
        return {'FINISHED'}

#############################IMPORT

class ImportPOV(bpy.types.Operator, ImportHelper):
    """Load Povray files"""
    bl_idname = "import_scene.pov"
    bl_label = "POV-Ray files (.pov/.inc)"
    bl_options = {'PRESET', 'UNDO'}
    COMPAT_ENGINES = {'POVRAY_RENDER'}

    # -----------
    # File props.
    files: CollectionProperty(type=bpy.types.OperatorFileListElement, options={'HIDDEN', 'SKIP_SAVE'})
    directory: StringProperty(maxlen=1024, subtype='FILE_PATH', options={'HIDDEN', 'SKIP_SAVE'})

    filename_ext = {".pov",".inc"}
    filter_glob: StringProperty(
            default="*.pov;*.inc",
            options={'HIDDEN'},
            )

    import_at_cur: BoolProperty(name="Import at Cursor Location",
                                    description = "Ignore Object Matrix",
                                    default=False)

    def execute(self, context):
        from mathutils import Matrix
        verts = []
        faces = []
        materials = []
        blendMats = [] ##############
        povMats = [] ##############
        colors = []
        matNames = []
        lenverts = None
        lenfaces = None
        suffix = -1
        name = 'Mesh2_%s'%suffix
        name_search = False
        verts_search = False
        faces_search = False
        plane_search = False
        box_search = False
        cylinder_search = False
        sphere_search = False
        cone_search = False
        tex_search = False ##################
        cache = []
        matrixes = {}
        writematrix = False
        index = None
        value = None
        #filepov = bpy.path.abspath(self.filepath) #was used for single files

        def mat_search(cache):
            r = g = b = 0.5
            f = t = 0
            color = None

            for item, value in enumerate(cache):

                if value == 'texture':
                    pass

                if value == 'pigment':

                    if cache[item+2] in {'rgb','srgb'}:
                        pass

                    elif cache[item+2] in {'rgbf','srgbf'}:
                        pass

                    elif cache[item+2] in {'rgbt','srgbt'}:
                        try:
                            r,g,b,t = float(cache[item+3]),float(cache[item+4]),float(cache[item+5]),float(cache[item+6])
                        except:
                            r = g = b = t = float(cache[item+2])
                        color = (r,g,b,t)

                    elif cache[item+2] in {'rgbft','srgbft'}:
                        pass

                    else:
                        pass

            if colors == [] or (colors != [] and color not in colors):
                colors.append(color)
                name = ob.name+"_mat"
                matNames.append(name)
                mat = bpy.data.materials.new(name)
                mat.diffuse_color = (r,g,b)
                mat.alpha = 1-t
                if mat.alpha != 1:
                    mat.use_transparency=True
                ob.data.materials.append(mat)

            else:
                for i, value in enumerate(colors):
                    if color == value:
                        ob.data.materials.append(bpy.data.materials[matNames[i]])
        for file in self.files:
            print ("Importing file: "+ file.name)
            filepov = self.directory + file.name
            for line in open(filepov):
                string = line.replace("{"," ")
                string = string.replace("}"," ")
                string = string.replace("<"," ")
                string = string.replace(">"," ")
                string = string.replace(","," ")
                lw = string.split()
                lenwords = len(lw)
                if lw:
                    if lw[0] == "object":
                        writematrix = True
                    if writematrix:
                        if lw[0] not in {"object","matrix"}:
                            index = lw[0]
                        if lw[0] in {"matrix"}:
                            value = [float(lw[1]),float(lw[2]),float(lw[3]),\
                                        float(lw[4]),float(lw[5]),float(lw[6]),\
                                        float(lw[7]),float(lw[8]),float(lw[9]),\
                                        float(lw[10]),float(lw[11]),float(lw[12])]
                            matrixes[index]=value
                            writematrix = False
            for line in open(filepov):
                S = line.replace("{"," { ")
                S = S.replace("}"," } ")
                S = S.replace(","," ")
                S = S.replace("<","")
                S = S.replace(">"," ")
                S = S.replace("="," = ")
                S = S.replace(";"," ; ")
                S = S.split()
                lenS= len(S)
                for i,word in enumerate(S):
    ##################Primitives Import##################
                    if word == 'cone':
                        cone_search = True
                        name_search = False
                    if cone_search:
                        cache.append(word)
                        if cache[-1] == '}':
                            try:
                                x0 = float(cache[2])
                                y0 = float(cache[3])
                                z0 = float(cache[4])
                                r0 = float(cache[5])
                                x1 = float(cache[6])
                                y1 = float(cache[7])
                                z1 = float(cache[8])
                                r1 = float(cache[9])
                                # Y is height in most pov files, not z
                                bpy.ops.pov.cone_add(base=r0, cap=r1, height=(y1-y0))
                                ob = context.object
                                ob.location = (x0,y0,z0)
                                #ob.scale = (r,r,r)
                                mat_search(cache)
                            except (ValueError):
                                pass
                            cache = []
                            cone_search = False
                    if word == 'plane':
                        plane_search = True
                        name_search = False
                    if plane_search:
                        cache.append(word)
                        if cache[-1] == '}':
                            try:
                                bpy.ops.pov.addplane()
                                ob = context.object
                                mat_search(cache)
                            except (ValueError):
                                pass
                            cache = []
                            plane_search = False
                    if word == 'box':
                        box_search = True
                        name_search = False
                    if box_search:
                        cache.append(word)
                        if cache[-1] == '}':
                            try:
                                x0 = float(cache[2])
                                y0 = float(cache[3])
                                z0 = float(cache[4])
                                x1 = float(cache[5])
                                y1 = float(cache[6])
                                z1 = float(cache[7])
                                #imported_corner_1=(x0, y0, z0)
                                #imported_corner_2 =(x1, y1, z1)
                                center = ((x0 + x1)/2,(y0 + y1)/2,(z0 + z1)/2)
                                bpy.ops.pov.addbox()
                                ob = context.object
                                ob.location = center
                                mat_search(cache)

                            except (ValueError):
                                pass
                            cache = []
                            box_search = False
                    if word == 'cylinder':
                        cylinder_search = True
                        name_search = False
                    if cylinder_search:
                        cache.append(word)
                        if cache[-1] == '}':
                            try:
                                x0 = float(cache[2])
                                y0 = float(cache[3])
                                z0 = float(cache[4])
                                x1 = float(cache[5])
                                y1 = float(cache[6])
                                z1 = float(cache[7])
                                imported_cyl_loc=(x0, y0, z0)
                                imported_cyl_loc_cap =(x1, y1, z1)

                                r = float(cache[8])


                                vec = Vector(imported_cyl_loc_cap ) - Vector(imported_cyl_loc)
                                depth = vec.length
                                rot = Vector((0, 0, 1)).rotation_difference(vec)  # Rotation from Z axis.
                                trans = rot @ Vector((0, 0, depth / 2)) # Such that origin is at center of the base of the cylinder.
                                #center = ((x0 + x1)/2,(y0 + y1)/2,(z0 + z1)/2)
                                scaleZ = sqrt((x1-x0)**2+(y1-y0)**2+(z1-z0)**2)/2
                                bpy.ops.pov.addcylinder(R=r, imported_cyl_loc=imported_cyl_loc, imported_cyl_loc_cap=imported_cyl_loc_cap)
                                ob = context.object
                                ob.location = (x0, y0, z0)
                                ob.rotation_euler = rot.to_euler()
                                ob.scale = (1,1,scaleZ)

                                #scale data rather than obj?
                                # bpy.ops.object.mode_set(mode='EDIT')
                                # bpy.ops.mesh.reveal()
                                # bpy.ops.mesh.select_all(action='SELECT')
                                # bpy.ops.transform.resize(value=(1,1,scaleZ), orient_type='LOCAL')
                                # bpy.ops.mesh.hide(unselected=False)
                                # bpy.ops.object.mode_set(mode='OBJECT')

                                mat_search(cache)

                            except (ValueError):
                                pass
                            cache = []
                            cylinder_search = False
                    if word == 'sphere':
                        sphere_search = True
                        name_search = False
                    if sphere_search:
                        cache.append(word)
                        if cache[-1] == '}':
                            x = y = z = r = 0
                            try:
                                x = float(cache[2])
                                y = float(cache[3])
                                z = float(cache[4])
                                r = float(cache[5])

                            except (ValueError):
                                pass
                            except:
                                x = y = z = float(cache[2])
                                r = float(cache[3])
                            bpy.ops.pov.addsphere(R=r, imported_loc=(x, y, z))
                            ob = context.object
                            ob.location = (x,y,z)
                            ob.scale = (r,r,r)
                            mat_search(cache)
                            cache = []
                            sphere_search = False
##################End Primitives Import##################
                    if word == '#declare':
                        name_search = True
                    if name_search:
                        cache.append(word)
                        if word == 'mesh2':
                            name_search = False
                            if cache[-2] == '=':
                                name = cache[-3]
                            else:
                                suffix+=1
                            cache = []
                        if word in {'texture',';'}:
                            name_search = False
                            cache = []
                    if word == 'vertex_vectors':
                         verts_search = True
                    if verts_search:
                        cache.append(word)
                        if word == '}':
                            verts_search = False
                            lenverts=cache[2]
                            cache.pop()
                            cache.pop(0)
                            cache.pop(0)
                            cache.pop(0)
                            for i in range(int(lenverts)):
                                x=i*3
                                y=(i*3)+1
                                z=(i*3)+2
                                verts.append((float(cache[x]),float(cache[y]),float(cache[z])))
                            cache = []
                    #if word == 'face_indices':
                         #faces_search = True
                    if word == 'texture_list': ########
                        tex_search = True #######
                    if tex_search: #########
                        if word not in {'texture_list','texture','{','}','face_indices'} and word.isdigit() == False: ##############
                            povMats.append(word) #################
                    if word == 'face_indices':
                        tex_search = False ################
                        faces_search = True
                    if faces_search:
                        cache.append(word)
                        if word == '}':
                            faces_search = False
                            lenfaces = cache[2]
                            cache.pop()
                            cache.pop(0)
                            cache.pop(0)
                            cache.pop(0)
                            lf = int(lenfaces)
                            var=int(len(cache)/lf)
                            for i in range(lf):
                                if var == 3:
                                    v0=i*3
                                    v1=i*3+1
                                    v2=i*3+2
                                    faces.append((int(cache[v0]),int(cache[v1]),int(cache[v2])))
                                if var == 4:
                                    v0=i*4
                                    v1=i*4+1
                                    v2=i*4+2
                                    m=i*4+3
                                    materials.append((int(cache[m])))
                                    faces.append((int(cache[v0]),int(cache[v1]),int(cache[v2])))
                                if var == 6:
                                    v0=i*6
                                    v1=i*6+1
                                    v2=i*6+2
                                    m0=i*6+3
                                    m1=i*6+4
                                    m2=i*6+5
                                    materials.append((int(cache[m0]),int(cache[m1]),int(cache[m2])))
                                    faces.append((int(cache[v0]),int(cache[v1]),int(cache[v2])))
                            #mesh = pov_define_mesh(None, verts, [], faces, name, hide_geometry=False)
                            #ob = object_utils.object_data_add(context, mesh, operator=None)

                            me = bpy.data.meshes.new(name) ########
                            ob = bpy.data.objects.new(name, me) ##########
                            bpy.context.collection.objects.link(ob) #########
                            me.from_pydata(verts, [], faces) ############

                            for mat in bpy.data.materials: ##############
                                blendMats.append(mat.name) #############
                            for mName in povMats: #####################
                                if mName not in blendMats: ###########
                                    povMat = bpy.data.materials.new(mName) #################
                                    mat_search(cache)
                                ob.data.materials.append(bpy.data.materials[mName]) ###################
                            if materials: ##################
                                for i,val in enumerate(materials): ####################
                                    try: ###################
                                        ob.data.polygons[i].material_index = val ####################
                                    except TypeError: ###################
                                        ob.data.polygons[i].material_index = int(val[0]) ##################

                            blendMats = [] #########################
                            povMats = [] #########################
                            materials = [] #########################
                            cache = []
                            name_search = True
                            if name in matrixes and self.import_at_cur==False:
                                global_matrix = Matrix.Rotation(pi / 2.0, 4, 'X')
                                ob = bpy.context.object
                                matrix=ob.matrix_world
                                v=matrixes[name]
                                matrix[0][0] = v[0]
                                matrix[1][0] = v[1]
                                matrix[2][0] = v[2]
                                matrix[0][1] = v[3]
                                matrix[1][1] = v[4]
                                matrix[2][1] = v[5]
                                matrix[0][2] = v[6]
                                matrix[1][2] = v[7]
                                matrix[2][2] = v[8]
                                matrix[0][3] = v[9]
                                matrix[1][3] = v[10]
                                matrix[2][3] = v[11]
                                matrix = global_matrix*ob.matrix_world
                                ob.matrix_world = matrix
                            verts = []
                            faces = []


                    # if word == 'pigment':
                        # try:
                            # #all indices have been incremented once to fit a bad test file
                            # r,g,b,t = float(S[2]),float(S[3]),float(S[4]),float(S[5])
                            # color = (r,g,b,t)

                        # except (IndexError):
                            # #all indices have been incremented once to fit alternate test file
                            # r,g,b,t = float(S[3]),float(S[4]),float(S[5]),float(S[6])
                            # color = (r,g,b,t)