ui.py

                column_flow.label(text="X")
                column_flow.prop(tex.pov, "func_plus_x", text="")
                column_flow.prop(tex.pov, "func_x", text="Value")
                column_flow = layout.column_flow(columns=3, align=True)
                column_flow.label(text="Y")
                column_flow.prop(tex.pov, "func_plus_y", text="")
                column_flow.prop(tex.pov, "func_y", text="Value")
                column_flow = layout.column_flow(columns=3, align=True)
                column_flow.label(text="Z")
                column_flow.prop(tex.pov, "func_plus_z", text="")
                column_flow.prop(tex.pov, "func_z", text="Value")
                row=layout.row(align=align)
                if func > 0:
                    row.prop(tex.pov, "func_P0", text="P0")
                if func > 1:
                    row.prop(tex.pov, "func_P1", text="P1")
                row=layout.row(align=align)
                if func > 2:
                    row.prop(tex.pov, "func_P2", text="P2")
                if func > 3:
                    row.prop(tex.pov, "func_P3", text="P3")
                row=layout.row(align=align)
                if func > 4:
                    row.prop(tex.pov, "func_P4", text="P4")
                if func > 5:
                    row.prop(tex.pov, "func_P5", text="P5")
                row=layout.row(align=align)
                if func > 6:
                    row.prop(tex.pov, "func_P6", text="P6")
                if func > 7:
                    row.prop(tex.pov, "func_P7", text="P7")
                    row=layout.row(align=align)
                    row.prop(tex.pov, "func_P8", text="P8")
                    row.prop(tex.pov, "func_P9", text="P9")
        ###################################################End Patterns############################


            layout.prop(tex.pov, "warp_types", text="Warp types") #warp
            if tex.pov.warp_types == "TOROIDAL":
                layout.prop(tex.pov, "warp_tor_major_radius", text="Major radius")
            if tex.pov.warp_types not in {"CUBIC","NONE"}:
                layout.prop(tex.pov, "warp_orientation", text="Warp orientation")
            col = layout.column(align=align)
            row = col.row()
            row.prop(tex.pov, "warp_dist_exp", text="Distance exponent")
            row = col.row()
            row.prop(tex.pov, "modifier_frequency", text="Frequency")
            row.prop(tex.pov, "modifier_phase", text="Phase")

            row=layout.row()

            row.label(text="Offset:")
            row.label(text="Scale:")
            row.label(text="Rotate:")
            col=layout.column(align=align)
            row=col.row()
            row.prop(tex.pov, "tex_mov_x", text="X")
            row.prop(tex.pov, "tex_scale_x", text="X")
            row.prop(tex.pov, "tex_rot_x", text="X")
            row=col.row()
            row.prop(tex.pov, "tex_mov_y", text="Y")
            row.prop(tex.pov, "tex_scale_y", text="Y")
            row.prop(tex.pov, "tex_rot_y", text="Y")
            row=col.row()
            row.prop(tex.pov, "tex_mov_z", text="Z")
            row.prop(tex.pov, "tex_scale_z", text="Z")
            row.prop(tex.pov, "tex_rot_z", text="Z")
            row=layout.row()

            row.label(text="Turbulence:")
            col=layout.column(align=align)
            row=col.row()
            row.prop(tex.pov, "warp_turbulence_x", text="X")
            row.prop(tex.pov, "modifier_octaves", text="Octaves")
            row=col.row()
            row.prop(tex.pov, "warp_turbulence_y", text="Y")
            row.prop(tex.pov, "modifier_lambda", text="Lambda")
            row=col.row()
            row.prop(tex.pov, "warp_turbulence_z", text="Z")
            row.prop(tex.pov, "modifier_omega", text="Omega")

class TEXTURE_PT_influence(TextureSlotPanel, Panel):
    bl_label = "Influence"
    COMPAT_ENGINES = {'POVRAY_RENDER'}

    @classmethod
    def poll(cls, context):
        idblock = context_tex_datablock(context)
        if isinstance(idblock, Brush):
            return False

        if not getattr(context, "texture_slot", None):
            return False

        engine = context.scene.render.engine
        return (engine in cls.COMPAT_ENGINES)

    def draw(self, context):

        layout = self.layout

        idblock = context_tex_datablock(context)

        tex = context.texture_slot

        def factor_but(layout, toggle, factor, name):
            row = layout.row(align=True)
            row.prop(tex, toggle, text="")
            sub = row.row(align=True)
            sub.active = getattr(tex, toggle)
            sub.prop(tex, factor, text=name, slider=True)
            return sub  # XXX, temp. use_map_normal needs to override.

        if isinstance(idblock, Material):
            if idblock.type in {'SURFACE', 'WIRE'}:
                split = layout.split()

                col = split.column()
                col.label(text="Diffuse:")
                factor_but(col, "use_map_diffuse", "diffuse_factor", "Intensity")
                factor_but(col, "use_map_color_diffuse", "diffuse_color_factor", "Color")
                factor_but(col, "use_map_alpha", "alpha_factor", "Alpha")
                factor_but(col, "use_map_translucency", "translucency_factor", "Translucency")

                col.label(text="Specular:")
                factor_but(col, "use_map_specular", "specular_factor", "Intensity")
                factor_but(col, "use_map_color_spec", "specular_color_factor", "Color")
                factor_but(col, "use_map_hardness", "hardness_factor", "Hardness")

                col = split.column()
                col.label(text="Shading:")
                factor_but(col, "use_map_ambient", "ambient_factor", "Ambient")
                factor_but(col, "use_map_emit", "emit_factor", "Emit")
                factor_but(col, "use_map_mirror", "mirror_factor", "Mirror")
                factor_but(col, "use_map_raymir", "raymir_factor", "Ray Mirror")

                col.label(text="Geometry:")
                # XXX replace 'or' when displacement is fixed to not rely on normal influence value.
                sub_tmp = factor_but(col, "use_map_normal", "normal_factor", "Normal")
                sub_tmp.active = (tex.use_map_normal or tex.use_map_displacement)
                # END XXX

                factor_but(col, "use_map_warp", "warp_factor", "Warp")
                factor_but(col, "use_map_displacement", "displacement_factor", "Displace")

                # ~ sub = col.column()
                # ~ sub.active = tex.use_map_translucency or tex.map_emit or tex.map_alpha or tex.map_raymir or tex.map_hardness or tex.map_ambient or tex.map_specularity or tex.map_reflection or tex.map_mirror
                #~ sub.prop(tex, "default_value", text="Amount", slider=True)
            elif idblock.type == 'HALO':
                layout.label(text="Halo:")

                split = layout.split()

                col = split.column()
                factor_but(col, "use_map_color_diffuse", "diffuse_color_factor", "Color")
                factor_but(col, "use_map_alpha", "alpha_factor", "Alpha")

                col = split.column()
                factor_but(col, "use_map_raymir", "raymir_factor", "Size")
                factor_but(col, "use_map_hardness", "hardness_factor", "Hardness")
                factor_but(col, "use_map_translucency", "translucency_factor", "Add")
            elif idblock.type == 'VOLUME':
                layout.label(text="Volume:")

                split = layout.split()

                col = split.column()
                factor_but(col, "use_map_density", "density_factor", "Density")
                factor_but(col, "use_map_emission", "emission_factor", "Emission")
                factor_but(col, "use_map_scatter", "scattering_factor", "Scattering")
                factor_but(col, "use_map_reflect", "reflection_factor", "Reflection")

                col = split.column()
                col.label(text=" ")
                factor_but(col, "use_map_color_emission", "emission_color_factor", "Emission Color")
                factor_but(col, "use_map_color_transmission", "transmission_color_factor", "Transmission Color")
                factor_but(col, "use_map_color_reflection", "reflection_color_factor", "Reflection Color")

                layout.label(text="Geometry:")

                split = layout.split()

                col = split.column()
                factor_but(col, "use_map_warp", "warp_factor", "Warp")

                col = split.column()
                factor_but(col, "use_map_displacement", "displacement_factor", "Displace")

        elif isinstance(idblock, Lamp):
            split = layout.split()

            col = split.column()
            factor_but(col, "use_map_color", "color_factor", "Color")

            col = split.column()
            factor_but(col, "use_map_shadow", "shadow_factor", "Shadow")

        elif isinstance(idblock, World):
            split = layout.split()

            col = split.column()
            factor_but(col, "use_map_blend", "blend_factor", "Blend")
            factor_but(col, "use_map_horizon", "horizon_factor", "Horizon")

            col = split.column()
            factor_but(col, "use_map_zenith_up", "zenith_up_factor", "Zenith Up")
            factor_but(col, "use_map_zenith_down", "zenith_down_factor", "Zenith Down")
        elif isinstance(idblock, ParticleSettings):
            split = layout.split()

            col = split.column()
            col.label(text="General:")
            factor_but(col, "use_map_time", "time_factor", "Time")
            factor_but(col, "use_map_life", "life_factor", "Lifetime")
            factor_but(col, "use_map_density", "density_factor", "Density")
            factor_but(col, "use_map_size", "size_factor", "Size")

            col = split.column()
            col.label(text="Physics:")
            factor_but(col, "use_map_velocity", "velocity_factor", "Velocity")
            factor_but(col, "use_map_damp", "damp_factor", "Damp")
            factor_but(col, "use_map_gravity", "gravity_factor", "Gravity")
            factor_but(col, "use_map_field", "field_factor", "Force Fields")

            layout.label(text="Hair:")

            split = layout.split()

            col = split.column()
            factor_but(col, "use_map_length", "length_factor", "Length")
            factor_but(col, "use_map_clump", "clump_factor", "Clump")
            factor_but(col, "use_map_twist", "twist_factor", "Twist")

            col = split.column()
            factor_but(col, "use_map_kink_amp", "kink_amp_factor", "Kink Amplitude")
            factor_but(col, "use_map_kink_freq", "kink_freq_factor", "Kink Frequency")
            factor_but(col, "use_map_rough", "rough_factor", "Rough")

        elif isinstance(idblock, FreestyleLineStyle):
            split = layout.split()

            col = split.column()
            factor_but(col, "use_map_color_diffuse", "diffuse_color_factor", "Color")
            col = split.column()
            factor_but(col, "use_map_alpha", "alpha_factor", "Alpha")

        layout.separator()

        if not isinstance(idblock, ParticleSettings):
            split = layout.split()

            col = split.column()
            col.prop(tex, "blend_type", text="Blend")
            col.prop(tex, "use_rgb_to_intensity")
            # color is used on gray-scale textures even when use_rgb_to_intensity is disabled.
            col.prop(tex, "color", text="")

            col = split.column()
            col.prop(tex, "invert", text="Negative")
            col.prop(tex, "use_stencil")

        if isinstance(idblock, (Material, World)):
            col.prop(tex, "default_value", text="DVar", slider=True)

        if isinstance(idblock, Material):
            layout.label(text="Bump Mapping:")

            # only show bump settings if activated but not for normal-map images
            row = layout.row()

            sub = row.row()
            sub.active = (
                (tex.use_map_normal or tex.use_map_warp) and
                not (tex.texture.type == 'IMAGE' and
                     (tex.texture.use_normal_map or tex.texture.use_derivative_map))
            )
            sub.prop(tex, "bump_method", text="Method")

            # the space setting is supported for: derivative-maps + bump-maps
            # (DEFAULT,BEST_QUALITY), not for normal-maps
            sub = row.row()
            sub.active = (
                (tex.use_map_normal or tex.use_map_warp) and
                not (tex.texture.type == 'IMAGE' and tex.texture.use_normal_map) and
                ((tex.bump_method in {'BUMP_LOW_QUALITY', 'BUMP_MEDIUM_QUALITY', 'BUMP_BEST_QUALITY'}) or
                 (tex.texture.type == 'IMAGE' and tex.texture.use_derivative_map))
            )
            sub.prop(tex, "bump_objectspace", text="Space")

class TEXTURE_PT_povray_tex_gamma(TextureButtonsPanel, Panel):
    bl_label = "Image Gamma"
    COMPAT_ENGINES = {'POVRAY_RENDER'}

    def draw_header(self, context):
        tex = context.texture

        self.layout.prop(tex.pov, "tex_gamma_enable", text="", icon='SEQ_LUMA_WAVEFORM')

    def draw(self, context):
        layout = self.layout

        tex = context.texture

        layout.active = tex.pov.tex_gamma_enable
        layout.prop(tex.pov, "tex_gamma_value", text="Gamma Value")

#commented out below UI for texture only custom code inside exported material:
# class TEXTURE_PT_povray_replacement_text(TextureButtonsPanel, Panel):
    # bl_label = "Custom POV Code"
    # COMPAT_ENGINES = {'POVRAY_RENDER'}

    # def draw(self, context):
        # layout = self.layout

        # tex = context.texture

        # col = layout.column()
        # col.label(text="Replace properties with:")
        # col.prop(tex.pov, "replacement_text", text="")


class OBJECT_PT_povray_obj_parameters(ObjectButtonsPanel, Panel):
    bl_label = "POV-Ray"
    COMPAT_ENGINES = {'POVRAY_RENDER'}

    @classmethod
    def poll(cls, context):

        engine = context.scene.render.engine
        return (engine in cls.COMPAT_ENGINES)

    def draw(self, context):
        layout = self.layout

        obj = context.object

        split = layout.split()

        col = split.column(align=True)

        col.label(text="Radiosity:")
        col.prop(obj.pov, "importance_value", text="Importance")
        col.label(text="Photons:")
        col.prop(obj.pov, "collect_photons", text="Receive Photon Caustics")
        if obj.pov.collect_photons:
            col.prop(obj.pov, "spacing_multiplier", text="Photons Spacing Multiplier")

        split = layout.split()

        col = split.column()
        col.prop(obj.pov,"hollow")
        col.prop(obj.pov,"double_illuminate")


        if obj.type == 'META' or obj.pov.curveshape == 'lathe':
        #if obj.pov.curveshape == 'sor'
            col.prop(obj.pov,"sturm")
        col.prop(obj.pov,"no_shadow")
        col.prop(obj.pov,"no_image")
        col.prop(obj.pov,"no_reflection")
        col.prop(obj.pov,"no_radiosity")
        col.prop(obj.pov,"inverse")
        col.prop(obj.pov,"hierarchy")
        # col.prop(obj.pov,"boundorclip",text="Bound / Clip")
        # if obj.pov.boundorclip != "none":
            # col.prop_search(obj.pov,"boundorclipob",context.blend_data,"objects",text="Object")
            # text = "Clipped by"
            # if obj.pov.boundorclip == "clipped_by":
                # text = "Bounded by"
            # col.prop(obj.pov,"addboundorclip",text=text)

class OBJECT_PT_povray_obj_sphere(PovDataButtonsPanel, Panel):
    bl_label = "POV-Ray Sphere"
    COMPAT_ENGINES = {'POVRAY_RENDER'}
    #bl_options = {'HIDE_HEADER'}
    @classmethod
    def poll(cls, context):
        engine = context.scene.render.engine
        obj = context.object
        return (obj and obj.pov.object_as == 'SPHERE' and (engine in cls.COMPAT_ENGINES))
    def draw(self, context):
        layout = self.layout

        obj = context.object

        col = layout.column()

        if obj.pov.object_as == 'SPHERE':
            if obj.pov.unlock_parameters == False:
                col.prop(obj.pov, "unlock_parameters", text="Exported parameters below", icon='LOCKED')
                col.label(text="Sphere radius: " + str(obj.pov.sphere_radius))

            else:
                col.prop(obj.pov, "unlock_parameters", text="Edit exported parameters", icon='UNLOCKED')
                col.label(text="3D view proxy may get out of synch")
                col.active = obj.pov.unlock_parameters


                layout.operator("pov.sphere_update", text="Update",icon="SOLID")

                #col.label(text="Parameters:")
                col.prop(obj.pov, "sphere_radius", text="Radius of Sphere")


class OBJECT_PT_povray_obj_cylinder(PovDataButtonsPanel, Panel):
    bl_label = "POV-Ray Cylinder"
    COMPAT_ENGINES = {'POVRAY_RENDER'}
    #bl_options = {'HIDE_HEADER'}
    @classmethod
    def poll(cls, context):
        engine = context.scene.render.engine
        obj = context.object
        return (obj and obj.pov.object_as == 'CYLINDER' and (engine in cls.COMPAT_ENGINES))
    def draw(self, context):
        layout = self.layout

        obj = context.object

        col = layout.column()

        if obj.pov.object_as == 'CYLINDER':
            if obj.pov.unlock_parameters == False:
                col.prop(obj.pov, "unlock_parameters", text="Exported parameters below", icon='LOCKED')
                col.label(text="Cylinder radius: " + str(obj.pov.cylinder_radius))
                col.label(text="Cylinder cap location: " + str(obj.pov.cylinder_location_cap))

            else:
                col.prop(obj.pov, "unlock_parameters", text="Edit exported parameters", icon='UNLOCKED')
                col.label(text="3D view proxy may get out of synch")
                col.active = obj.pov.unlock_parameters


                layout.operator("pov.cylinder_update", text="Update",icon="MESH_CYLINDER")

                #col.label(text="Parameters:")
                col.prop(obj.pov, "cylinder_radius")
                col.prop(obj.pov, "cylinder_location_cap")

class OBJECT_PT_povray_obj_cone(PovDataButtonsPanel, Panel):
    bl_label = "POV-Ray Cone"
    COMPAT_ENGINES = {'POVRAY_RENDER'}
    #bl_options = {'HIDE_HEADER'}
    @classmethod
    def poll(cls, context):
        engine = context.scene.render.engine
        obj = context.object
        return (obj and obj.pov.object_as == 'CONE' and (engine in cls.COMPAT_ENGINES))
    def draw(self, context):
        layout = self.layout

        obj = context.object

        col = layout.column()

        if obj.pov.object_as == 'CONE':
            if obj.pov.unlock_parameters == False:
                col.prop(obj.pov, "unlock_parameters", text="Exported parameters below", icon='LOCKED')
                col.label(text="Cone base radius: " + str(obj.pov.cone_base_radius))
                col.label(text="Cone cap radius: " + str(obj.pov.cone_cap_radius))
                col.label(text="Cone proxy segments: " + str(obj.pov.cone_segments))
                col.label(text="Cone height: " + str(obj.pov.cone_height))
            else:
                col.prop(obj.pov, "unlock_parameters", text="Edit exported parameters", icon='UNLOCKED')
                col.label(text="3D view proxy may get out of synch")
                col.active = obj.pov.unlock_parameters


                layout.operator("pov.cone_update", text="Update",icon="MESH_CONE")

                #col.label(text="Parameters:")
                col.prop(obj.pov, "cone_base_radius", text="Radius of Cone Base")
                col.prop(obj.pov, "cone_cap_radius", text="Radius of Cone Cap")
                col.prop(obj.pov, "cone_segments", text="Segmentation of Cone proxy")
                col.prop(obj.pov, "cone_height", text="Height of the cone")

class OBJECT_PT_povray_obj_superellipsoid(PovDataButtonsPanel, Panel):
    bl_label = "POV-Ray Superquadric ellipsoid"
    COMPAT_ENGINES = {'POVRAY_RENDER'}
    #bl_options = {'HIDE_HEADER'}
    @classmethod
    def poll(cls, context):
        engine = context.scene.render.engine
        obj = context.object
        return (obj and obj.pov.object_as == 'SUPERELLIPSOID' and (engine in cls.COMPAT_ENGINES))
    def draw(self, context):
        layout = self.layout

        obj = context.object

        col = layout.column()

        if obj.pov.object_as == 'SUPERELLIPSOID':
            if obj.pov.unlock_parameters == False:
                col.prop(obj.pov, "unlock_parameters", text="Exported parameters below", icon='LOCKED')
                col.label(text="Radial segmentation: " + str(obj.pov.se_u))
                col.label(text="Lateral segmentation: " + str(obj.pov.se_v))
                col.label(text="Ring shape: " + str(obj.pov.se_n1))
                col.label(text="Cross-section shape: " + str(obj.pov.se_n2))
                col.label(text="Fill up and down: " + str(obj.pov.se_edit))
            else:
                col.prop(obj.pov, "unlock_parameters", text="Edit exported parameters", icon='UNLOCKED')
                col.label(text="3D view proxy may get out of synch")
                col.active = obj.pov.unlock_parameters


                layout.operator("pov.superellipsoid_update", text="Update",icon="MOD_SUBSURF")

                #col.label(text="Parameters:")
                col.prop(obj.pov, "se_u")
                col.prop(obj.pov, "se_v")
                col.prop(obj.pov, "se_n1")
                col.prop(obj.pov, "se_n2")
                col.prop(obj.pov, "se_edit")


class OBJECT_PT_povray_obj_torus(PovDataButtonsPanel, Panel):
    bl_label = "POV-Ray Torus"
    COMPAT_ENGINES = {'POVRAY_RENDER'}
    #bl_options = {'HIDE_HEADER'}
    @classmethod
    def poll(cls, context):
        engine = context.scene.render.engine
        obj = context.object
        return (obj and obj.pov.object_as == 'TORUS' and (engine in cls.COMPAT_ENGINES))
    def draw(self, context):
        layout = self.layout

        obj = context.object

        col = layout.column()

        if obj.pov.object_as == 'TORUS':
            if obj.pov.unlock_parameters == False:
                col.prop(obj.pov, "unlock_parameters", text="Exported parameters below", icon='LOCKED')
                col.label(text="Torus major radius: " + str(obj.pov.torus_major_radius))
                col.label(text="Torus minor radius: " + str(obj.pov.torus_minor_radius))
                col.label(text="Torus major segments: " + str(obj.pov.torus_major_segments))
                col.label(text="Torus minor segments: " + str(obj.pov.torus_minor_segments))
            else:
                col.prop(obj.pov, "unlock_parameters", text="Edit exported parameters", icon='UNLOCKED')
                col.label(text="3D view proxy may get out of synch")
                col.active = obj.pov.unlock_parameters


                layout.operator("pov.torus_update", text="Update",icon="MESH_TORUS")

                #col.label(text="Parameters:")
                col.prop(obj.pov, "torus_major_radius")
                col.prop(obj.pov, "torus_minor_radius")
                col.prop(obj.pov, "torus_major_segments")
                col.prop(obj.pov, "torus_minor_segments")

class OBJECT_PT_povray_obj_supertorus(PovDataButtonsPanel, Panel):
    bl_label = "POV-Ray SuperTorus"
    COMPAT_ENGINES = {'POVRAY_RENDER'}
    #bl_options = {'HIDE_HEADER'}
    @classmethod
    def poll(cls, context):
        engine = context.scene.render.engine
        obj = context.object
        return (obj and obj.pov.object_as == 'SUPERTORUS' and (engine in cls.COMPAT_ENGINES))
    def draw(self, context):
        layout = self.layout

        obj = context.object

        col = layout.column()

        if obj.pov.object_as == 'SUPERTORUS':
            if obj.pov.unlock_parameters == False:
                col.prop(obj.pov, "unlock_parameters", text="Exported parameters below", icon='LOCKED')
                col.label(text="SuperTorus major radius: " + str(obj.pov.st_major_radius))
                col.label(text="SuperTorus minor radius: " + str(obj.pov.st_minor_radius))
                col.label(text="SuperTorus major segments: " + str(obj.pov.st_u))
                col.label(text="SuperTorus minor segments: " + str(obj.pov.st_v))

                col.label(text="SuperTorus Ring Manipulator: " + str(obj.pov.st_ring))
                col.label(text="SuperTorus Cross Manipulator: " + str(obj.pov.st_cross))
                col.label(text="SuperTorus Internal And External radii: " + str(obj.pov.st_ie))

                col.label(text="SuperTorus accuracy: " + str(ob.pov.st_accuracy))
                col.label(text="SuperTorus max gradient: " + str(ob.pov.st_max_gradient))


            else:
                col.prop(obj.pov, "unlock_parameters", text="Edit exported parameters", icon='UNLOCKED')
                col.label(text="3D view proxy may get out of synch")
                col.active = obj.pov.unlock_parameters


                layout.operator("pov.supertorus_update", text="Update",icon="MESH_TORUS")

                #col.label(text="Parameters:")
                col.prop(obj.pov, "st_major_radius")
                col.prop(obj.pov, "st_minor_radius")
                col.prop(obj.pov, "st_u")
                col.prop(obj.pov, "st_v")
                col.prop(obj.pov, "st_ring")
                col.prop(obj.pov, "st_cross")
                col.prop(obj.pov, "st_ie")
                #col.prop(obj.pov, "st_edit") #?
                col.prop(obj.pov, "st_accuracy")
                col.prop(obj.pov, "st_max_gradient")

class OBJECT_PT_povray_obj_parametric(PovDataButtonsPanel, Panel):
    bl_label = "POV-Ray Parametric surface"
    COMPAT_ENGINES = {'POVRAY_RENDER'}
    #bl_options = {'HIDE_HEADER'}
    @classmethod
    def poll(cls, context):
        engine = context.scene.render.engine
        obj = context.object
        return (obj and obj.pov.object_as == 'PARAMETRIC' and (engine in cls.COMPAT_ENGINES))
    def draw(self, context):
        layout = self.layout

        obj = context.object

        col = layout.column()

        if obj.pov.object_as == 'PARAMETRIC':
            if obj.pov.unlock_parameters == False:
                col.prop(obj.pov, "unlock_parameters", text="Exported parameters below", icon='LOCKED')
                col.label(text="Minimum U: " + str(obj.pov.u_min))
                col.label(text="Minimum V: " + str(obj.pov.v_min))
                col.label(text="Maximum U: " + str(obj.pov.u_max))
                col.label(text="Minimum V: " + str(obj.pov.v_min))
                col.label(text="X Function: " + str(obj.pov.x_eq))
                col.label(text="Y Function: " + str(obj.pov.y_eq))
                col.label(text="Z Function: " + str(obj.pov.x_eq))

            else:
                col.prop(obj.pov, "unlock_parameters", text="Edit exported parameters", icon='UNLOCKED')
                col.label(text="3D view proxy may get out of synch")
                col.active = obj.pov.unlock_parameters


                layout.operator("pov.parametric_update", text="Update",icon="SCRIPTPLUGINS")

                col.prop(obj.pov, "u_min", text="Minimum U")
                col.prop(obj.pov, "v_min", text="Minimum V")
                col.prop(obj.pov, "u_max", text="Maximum U")
                col.prop(obj.pov, "v_max", text="Minimum V")
                col.prop(obj.pov, "x_eq", text="X Function")
                col.prop(obj.pov, "y_eq", text="Y Function")
                col.prop(obj.pov, "z_eq", text="Z Function")


class OBJECT_PT_povray_replacement_text(ObjectButtonsPanel, Panel):
    bl_label = "Custom POV Code"
    COMPAT_ENGINES = {'POVRAY_RENDER'}

    def draw(self, context):
        layout = self.layout

        obj = context.object

        col = layout.column()
        col.label(text="Replace properties with:")
        col.prop(obj.pov, "replacement_text", text="")

###############################################################################
# Add Povray Objects
###############################################################################


class POVRAY_MT_primitives_add_menu(bpy.types.Menu):
    """Define the menu with presets"""
    bl_idname = "POVRAY_MT_primitives_add_menu"
    bl_label = "Povray"
    COMPAT_ENGINES = {'POVRAY_RENDER'}

    @classmethod
    def poll(cls, context):
        engine = context.scene.render.engine
        return (engine == 'POVRAY_RENDER')

    def draw(self,context):
        layout = self.layout
        layout.operator_context = 'INVOKE_REGION_WIN'
        layout.menu(BasicShapesMenu.bl_idname, text = "Primitives",icon="GROUP")
        layout.menu(ImportMenu.bl_idname, text = "Import",icon="IMPORT")

class BasicShapesMenu(bpy.types.Menu):
    bl_idname = "POVRAY_MT_basic_shape_tools"
    bl_label = "Basic_shapes"

    def draw(self,context):
        layout = self.layout
        layout.operator_context = 'INVOKE_REGION_WIN'
        layout.operator("pov.addplane", text="Infinite Plane",icon = 'MESH_PLANE')
        layout.operator("pov.addbox", text="Box",icon = 'MESH_CUBE')
        layout.operator("pov.addsphere", text="Sphere",icon = 'SOLID')
        layout.operator("pov.addcylinder", text="Cylinder",icon="MESH_CYLINDER")
        layout.operator("pov.cone_add", text="Cone",icon="MESH_CONE")
        layout.operator("pov.addtorus", text="Torus",icon = 'MESH_TORUS')
        layout.separator()
        layout.operator("pov.addrainbow", text="Rainbow",icon="COLOR")
        layout.operator("pov.addlathe", text="Lathe",icon = 'MOD_SCREW')
        layout.operator("pov.addprism", text="Prism",icon = 'MOD_SOLIDIFY')
        layout.operator("pov.addsuperellipsoid", text="Superquadric Ellipsoid",icon = 'MOD_SUBSURF')
        layout.operator("pov.addheightfield", text="Height Field",icon="RNDCURVE")
        layout.operator("pov.addspheresweep", text="Sphere Sweep",icon = 'FORCE_CURVE')
        layout.separator()
        layout.operator("pov.addblobsphere", text="Blob Sphere",icon = 'META_DATA')
        layout.separator()
        layout.label(text="Isosurfaces")
        layout.operator("pov.addisosurfacebox", text="Isosurface Box",icon="META_CUBE")
        layout.operator("pov.addisosurfacesphere", text="Isosurface Sphere",icon="META_BALL")
        layout.operator("pov.addsupertorus", text="Supertorus",icon="SURFACE_NTORUS")
        layout.separator()
        layout.label(text = "Macro based")
        layout.operator("pov.addpolygontocircle", text="Polygon To Circle Blending",icon="RETOPO")
        layout.operator("pov.addloft", text="Loft",icon="SURFACE_NSURFACE")
        layout.separator()
        # Warning if the Add Advanced Objects addon containing
        # Add mesh extra objects is not enabled
        if not check_add_mesh_extra_objects():
            #col = box.column()
            layout.label(text="Please enable Add Mesh: Extra Objects addon", icon="INFO")
            #layout.separator()
            layout.operator("preferences.addon_show",
                         text="Go to Add Mesh: Extra Objects addon",
                         icon="PREFERENCES").module = "add_mesh_extra_objects"

            #layout.separator()
            return
        else:
            layout.operator("pov.addparametric", text="Parametric",icon = 'SCRIPTPLUGINS')

class ImportMenu(bpy.types.Menu):
    bl_idname = "POVRAY_MT_import_tools"
    bl_label = "Import"

    def draw(self,context):
        layout = self.layout
        layout.operator_context = 'INVOKE_REGION_WIN'
        layout.operator("import_scene.pov",icon="FORCE_LENNARDJONES")

def menu_func_add(self, context):
    engine = context.scene.render.engine
    if engine == 'POVRAY_RENDER':
        self.layout.menu("POVRAY_MT_primitives_add_menu", icon="PLUGIN")

def menu_func_import(self, context):
    engine = context.scene.render.engine
    if engine == 'POVRAY_RENDER':
        self.layout.operator("import_scene.pov",icon="FORCE_LENNARDJONES")


##############Nodes

# def find_node_input(node, name):
    # for input in node.inputs:
        # if input.name == name:
            # return input

# def panel_node_draw(layout, id_data, output_type, input_name):
    # if not id_data.use_nodes:
        # #layout.operator("pov.material_use_nodes", icon='SOUND')#'NODETREE')
        # #layout.operator("pov.use_shading_nodes", icon='NODETREE')
        # layout.operator("WM_OT_context_toggle", icon='NODETREE').data_path = \
                        # "material.pov.material_use_nodes"
        # return False

    # ntree = id_data.node_tree

    # node = find_node(id_data, output_type)
    # if not node:
        # layout.label(text="No output node")
    # else:
        # input = find_node_input(node, input_name)
        # layout.template_node_view(ntree, node, input)

    # return True

class NodeMapCreateMenu(bpy.types.Menu):
    """Create maps"""
    bl_idname = "POVRAY_MT_node_map_create"
    bl_label = "Create map"

    def draw(self,context):
        layout = self.layout
        layout.operator("node.map_create")

def menu_func_nodes(self, context):
    ob = context.object
    if hasattr(ob,'active_material'):
        mat=context.object.active_material
        if mat and context.space_data.tree_type == 'ObjectNodeTree':
            self.layout.prop(mat.pov,"material_use_nodes")
            self.layout.menu(NodeMapCreateMenu.bl_idname)
            self.layout.operator("wm.updatepreviewkey")
        if hasattr(mat,'active_texture') and context.scene.render.engine == 'POVRAY_RENDER':
            tex=mat.active_texture
            if tex and context.space_data.tree_type == 'TextureNodeTree':
                self.layout.prop(tex.pov,"texture_use_nodes")


###############################################################################
# Camera Povray Settings
###############################################################################
class CAMERA_PT_povray_cam_dof(CameraDataButtonsPanel, Panel):
    bl_label = "POV-Ray Aperture"
    COMPAT_ENGINES = {'POVRAY_RENDER'}
    bl_parent_id = "DATA_PT_camera_dof_aperture"
    bl_options = {'HIDE_HEADER'}
    #def draw_header(self, context):
        #cam = context.camera

        #self.layout.prop(cam.pov, "dof_enable", text="")

    def draw(self, context):
        layout = self.layout

        cam = context.camera

        layout.active = cam.dof.use_dof
        layout.use_property_split = True # Active single-column layout

        flow = layout.grid_flow(row_major=True, columns=0, even_columns=True, even_rows=False, align=False)

        col = flow.column()
        col.label(text="F-Stop value will export as")
        col.label(text="POV-Ray aperture : " + "%.3f" % (1/cam.dof.aperture_fstop*1000))
        
        col = flow.column()
        col.prop(cam.pov, "dof_samples_min")
        col.prop(cam.pov, "dof_samples_max")
        col.prop(cam.pov, "dof_variance")        
        col.prop(cam.pov, "dof_confidence")



class CAMERA_PT_povray_cam_nor(CameraDataButtonsPanel, Panel):
    bl_label = "POV-Ray Perturbation"
    COMPAT_ENGINES = {'POVRAY_RENDER'}

    def draw_header(self, context):
        cam = context.camera

        self.layout.prop(cam.pov, "normal_enable", text="")

    def draw(self, context):
        layout = self.layout

        cam = context.camera

        layout.active = cam.pov.normal_enable

        layout.prop(cam.pov,"normal_patterns")
        layout.prop(cam.pov,"cam_normal")
        layout.prop(cam.pov,"turbulence")
        layout.prop(cam.pov,"scale")


class CAMERA_PT_povray_replacement_text(CameraDataButtonsPanel, Panel):
    bl_label = "Custom POV Code"
    COMPAT_ENGINES = {'POVRAY_RENDER'}

    def draw(self, context):
        layout = self.layout

        cam = context.camera

        col = layout.column()
        col.label(text="Replace properties with:")
        col.prop(cam.pov, "replacement_text", text="")

###############################################################################
# Text Povray Settings
###############################################################################

class TEXT_OT_povray_insert(Operator):
    """Tooltip"""
    bl_idname = "text.povray_insert"
    bl_label = "Insert"

    filepath : bpy.props.StringProperty(name="Filepath", subtype='FILE_PATH')

    @classmethod
    def poll(cls, context):
        # context.area.type == 'TEXT_EDITOR'
        return bpy.ops.text.insert.poll()

    def execute(self, context):
        if self.filepath and isfile(self.filepath):
            file = open(self.filepath, "r")
            bpy.ops.text.insert(text=file.read())

            # places the cursor at the end without scrolling -.-
            # context.space_data.text.write(file.read())
            file.close()
        return {'FINISHED'}

def validinsert(ext):
	return ext in {".txt",".inc",".pov"}

class TEXT_MT_insert(bpy.types.Menu):
    bl_label = "Insert"
    bl_idname = "TEXT_MT_insert"

    def draw(self, context):
        pov_documents = locate_docpath()
        prop = self.layout.operator("wm.path_open", text="Open folder", icon='FILE_FOLDER')
        prop.filepath = pov_documents
        self.layout.separator()

        list=[]
        for root,dirs,files in os.walk(pov_documents):
            list.append(root)
        print(list)
        self.path_menu(list,
                       "text.povray_insert",
                       #{"internal": True},
					   filter_ext= validinsert
                       )

class TEXT_PT_povray_custom_code(TextButtonsPanel, Panel):
    bl_label = "POV-Ray"
    COMPAT_ENGINES = {'POVRAY_RENDER'}

    def draw(self, context):
        layout = self.layout

        text = context.space_data.text

        pov_documents = locate_docpath()
        if not pov_documents :
            layout.label(text="Please configure ", icon="INFO")
            layout.label(text="default pov include path ")
            layout.label(text="in addon preferences")
            #layout.separator()
            layout.operator("preferences.addon_show",
                         text="Go to Render: POV-Ray addon",
                         icon="PREFERENCES").module = "render_povray"

            #layout.separator()
        else:
            #print(pov_documents)
            layout.menu(TEXT_MT_insert.bl_idname)

        if text:
            box = layout.box()
            box.label(text='Source to render:', icon='RENDER_STILL')
            row = box.row()
            row.prop(text.pov, "custom_code",expand = True)
            if text.pov.custom_code in {'3dview'}:
                box.operator("render.render", icon='OUTLINER_DATA_POSE')
            if text.pov.custom_code in {'text'}:
                rtext = bpy.context.space_data.text
                box.operator("text.run", icon='POSE_DATA')
            #layout.prop(text.pov, "custom_code")
            elif text.pov.custom_code in {'both'}:
                box.operator("render.render", icon='POSE_HLT')
                layout.label(text="Please specify declared", icon="INFO")
                layout.label(text="items in properties ")
                #layout.label(text="")
                layout.label(text="replacement fields")


###############################################
# Text editor templates from header menu

class TEXT_MT_templates_pov(bpy.types.Menu):
    bl_label = "POV-Ray"

    # We list templates on file evaluation, we can assume they are static data,
    # and better avoid running this on every draw call.
    import os
    template_paths = [os.path.join(os.path.dirname(__file__), "templates_pov")]

    def draw(self, context):
        self.path_menu(
            self.template_paths,
            "text.open",
            props_default={"internal": True},
        )

def menu_func_templates(self, context):
    # Do not depend on POV-Ray being active renderer here...
    self.layout.menu("TEXT_MT_templates_pov")

classes = (
    WORLD_PT_POV_world,
    POV_WORLD_MT_presets,
    AddPresetWorld,
    WORLD_TEXTURE_SLOTS_UL_List,
    WORLD_PT_POV_mist,    
    #RenderButtonsPanel,
    #ModifierButtonsPanel,
    #MaterialButtonsPanel,
    #TextureButtonsPanel,
    #ObjectButtonsPanel,
    #CameraDataButtonsPanel,
    #WorldButtonsPanel,
    #TextButtonsPanel,
    #PovDataButtonsPanel,
    DATA_PT_POV_normals,
    DATA_PT_POV_texture_space,