__init__.py

            if base_mat.transparency_method == 'RAYTRACE':
                layout.separator()
                split = layout.split()
                split.active = base_mat.use_transparency

                col = split.column()
                col.prop(rayt, "ior")
                col.prop(rayt, "filter")
                col.prop(rayt, "falloff")
                col.prop(rayt, "depth_max")
                col.prop(rayt, "depth")

                col = split.column()
                col.label(text="Gloss:")
                col.prop(rayt, "gloss_factor", text="Amount")
                sub = col.column()
                sub.active = rayt.gloss_factor < 1.0
                sub.prop(rayt, "gloss_threshold", text="Threshold")
                sub.prop(rayt, "gloss_samples", text="Samples")


    class MATERIAL_PT_mirror(MaterialButtonsPanel, Panel):
        bl_label = "Mirror"
        bl_options = {'DEFAULT_CLOSED'}
        COMPAT_ENGINES = {'BLENDER_RENDER'}

        @classmethod
        def poll(cls, context):
            mat = context.material
            engine = context.scene.render.engine
            return check_material(mat) and (mat.type in {'SURFACE', 'WIRE'}) and (engine in cls.COMPAT_ENGINES)

        def draw_header(self, context):
            raym = active_node_mat(context.material).raytrace_mirror

            self.layout.prop(raym, "use", text="")

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

            mat = active_node_mat(context.material)
            raym = mat.raytrace_mirror

            layout.active = raym.use

            split = layout.split()

            col = split.column()
            col.prop(raym, "reflect_factor")
            col.prop(mat, "mirror_color", text="")

            col = split.column()
            col.prop(raym, "fresnel")
            sub = col.column()
            sub.active = (raym.fresnel > 0.0)
            sub.prop(raym, "fresnel_factor", text="Blend")

            split = layout.split()

            col = split.column()
            col.separator()
            col.prop(raym, "depth")
            col.prop(raym, "distance", text="Max Dist")
            col.separator()
            sub = col.split(percentage=0.4)
            sub.active = (raym.distance > 0.0)
            sub.label(text="Fade To:")
            sub.prop(raym, "fade_to", text="")

            col = split.column()
            col.label(text="Gloss:")
            col.prop(raym, "gloss_factor", text="Amount")
            sub = col.column()
            sub.active = (raym.gloss_factor < 1.0)
            sub.prop(raym, "gloss_threshold", text="Threshold")
            sub.prop(raym, "gloss_samples", text="Samples")
            sub.prop(raym, "gloss_anisotropic", text="Anisotropic")


    class MATERIAL_PT_sss(MaterialButtonsPanel, Panel):
        bl_label = "Subsurface Scattering"
        bl_options = {'DEFAULT_CLOSED'}
        COMPAT_ENGINES = {'BLENDER_RENDER'}

        @classmethod
        def poll(cls, context):
            mat = context.material
            engine = context.scene.render.engine
            return check_material(mat) and (mat.type in {'SURFACE', 'WIRE'}) and (engine in cls.COMPAT_ENGINES)

        def draw_header(self, context):
            mat = active_node_mat(context.material)
            sss = mat.subsurface_scattering

            self.layout.active = (not mat.use_shadeless)
            self.layout.prop(sss, "use", text="")

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

            mat = active_node_mat(context.material)
            sss = mat.subsurface_scattering

            layout.active = (sss.use) and (not mat.use_shadeless)

            row = layout.row().split()
            sub = row.row(align=True).split(align=True, percentage=0.75)
            sub.menu("MATERIAL_MT_sss_presets", text=bpy.types.MATERIAL_MT_sss_presets.bl_label)
            sub.operator("material.sss_preset_add", text="", icon='ZOOMIN')
            sub.operator("material.sss_preset_add", text="", icon='ZOOMOUT').remove_active = True

            split = layout.split()

            col = split.column()
            col.prop(sss, "ior")
            col.prop(sss, "scale")
            col.prop(sss, "color", text="")
            col.prop(sss, "radius", text="RGB Radius", expand=True)

            col = split.column()
            sub = col.column(align=True)
            sub.label(text="Blend:")
            sub.prop(sss, "color_factor", text="Color")
            sub.prop(sss, "texture_factor", text="Texture")
            sub.label(text="Scattering Weight:")
            sub.prop(sss, "front")
            sub.prop(sss, "back")
            col.separator()
            col.prop(sss, "error_threshold", text="Error")


    class MATERIAL_PT_halo(MaterialButtonsPanel, Panel):
        bl_label = "Halo"
        COMPAT_ENGINES = {'BLENDER_RENDER'}

        @classmethod
        def poll(cls, context):
            mat = context.material
            engine = context.scene.render.engine
            return mat and (mat.type == 'HALO') and (engine in cls.COMPAT_ENGINES)

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

            mat = context.material  # don't use node material
            halo = mat.halo

            def number_but(layout, toggle, number, name, color):
                row = layout.row(align=True)
                row.prop(halo, toggle, text="")
                sub = row.column(align=True)
                sub.active = getattr(halo, toggle)
                sub.prop(halo, number, text=name, translate=False)
                if not color == "":
                    sub.prop(mat, color, text="")

            split = layout.split()

            col = split.column()
            col.prop(mat, "alpha")
            col.prop(mat, "diffuse_color", text="")
            col.prop(halo, "seed")

            col = split.column()
            col.prop(halo, "size")
            col.prop(halo, "hardness")
            col.prop(halo, "add")

            layout.label(text="Options:")

            split = layout.split()
            col = split.column()
            col.prop(halo, "use_texture")
            col.prop(halo, "use_vertex_normal")
            col.prop(halo, "use_extreme_alpha")
            col.prop(halo, "use_shaded")
            col.prop(halo, "use_soft")

            col = split.column()
            number_but(col, "use_ring", "ring_count", iface_("Rings"), "mirror_color")
            number_but(col, "use_lines", "line_count", iface_("Lines"), "specular_color")
            number_but(col, "use_star", "star_tip_count", iface_("Star Tips"), "")


    class MATERIAL_PT_flare(MaterialButtonsPanel, Panel):
        bl_label = "Flare"
        COMPAT_ENGINES = {'BLENDER_RENDER'}

        @classmethod
        def poll(cls, context):
            mat = context.material
            engine = context.scene.render.engine
            return mat and (mat.type == 'HALO') and (engine in cls.COMPAT_ENGINES)

        def draw_header(self, context):
            halo = context.material.halo

            self.layout.prop(halo, "use_flare_mode", text="")

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

            mat = context.material  # don't use node material
            halo = mat.halo

            layout.active = halo.use_flare_mode

            split = layout.split()

            col = split.column()
            col.prop(halo, "flare_size", text="Size")
            col.prop(halo, "flare_boost", text="Boost")
            col.prop(halo, "flare_seed", text="Seed")

            col = split.column()
            col.prop(halo, "flare_subflare_count", text="Subflares")
            col.prop(halo, "flare_subflare_size", text="Subsize")

    '''
#######################End Old Blender Internal Props##########################
###############################################################################
# Povray Nodes
###############################################################################

class PovraySocketUniversal(bpy.types.NodeSocket):
    bl_idname = 'PovraySocketUniversal'
    bl_label = 'Povray Socket'
    value_unlimited: bpy.props.FloatProperty(default=0.0)
    value_0_1: bpy.props.FloatProperty(min=0.0,max=1.0,default=0.0)
    value_0_10: bpy.props.FloatProperty(min=0.0,max=10.0,default=0.0)
    value_000001_10: bpy.props.FloatProperty(min=0.000001,max=10.0,default=0.0)
    value_1_9: bpy.props.IntProperty(min=1,max=9,default=1)
    value_0_255: bpy.props.IntProperty(min=0,max=255,default=0)
    percent: bpy.props.FloatProperty(min=0.0,max=100.0,default=0.0)
    def draw(self, context, layout, node, text):
        space = context.space_data
        tree = space.edit_tree
        links=tree.links
        if self.is_linked:
            value=[]
            for link in links:
                if link.from_node==node:
                    inps=link.to_node.inputs
                    for inp in inps:
                        if inp.bl_idname=="PovraySocketFloat_0_1" and inp.is_linked:
                            prop="value_0_1"
                            if prop not in value:
                                value.append(prop)
                        if inp.bl_idname=="PovraySocketFloat_000001_10" and inp.is_linked:
                            prop="value_000001_10"
                            if prop not in value:
                                value.append(prop)
                        if inp.bl_idname=="PovraySocketFloat_0_10" and inp.is_linked:
                            prop="value_0_10"
                            if prop not in value:
                                value.append(prop)
                        if inp.bl_idname=="PovraySocketInt_1_9" and inp.is_linked:
                            prop="value_1_9"
                            if prop not in value:
                                value.append(prop)
                        if inp.bl_idname=="PovraySocketInt_0_255" and inp.is_linked:
                            prop="value_0_255"
                            if prop not in value:
                                value.append(prop)
                        if inp.bl_idname=="PovraySocketFloatUnlimited" and inp.is_linked:
                            prop="value_unlimited"
                            if prop not in value:
                                value.append(prop)
            if len(value)==1:
                layout.prop(self, "%s"%value[0], text=text)
            else:
                layout.prop(self, "percent", text="Percent")
        else:
            layout.prop(self, "percent", text=text)
    def draw_color(self, context, node):
        return (1, 0, 0, 1)

class PovraySocketFloat_0_1(bpy.types.NodeSocket):
    bl_idname = 'PovraySocketFloat_0_1'
    bl_label = 'Povray Socket'
    default_value: bpy.props.FloatProperty(description="Input node Value_0_1",min=0,max=1,default=0)
    def draw(self, context, layout, node, text):
        if self.is_linked:
            layout.label(text)
        else:
            layout.prop(self, "default_value", text=text, slider=True)

    def draw_color(self, context, node):
        return (0.5, 0.7, 0.7, 1)

class PovraySocketFloat_0_10(bpy.types.NodeSocket):
    bl_idname = 'PovraySocketFloat_0_10'
    bl_label = 'Povray Socket'
    default_value: bpy.props.FloatProperty(description="Input node Value_0_10",min=0,max=10,default=0)
    def draw(self, context, layout, node, text):
        if node.bl_idname == 'ShaderNormalMapNode' and node.inputs[2].is_linked:
            layout.label(text='')
            self.hide_value=True
        if self.is_linked:
            layout.label(text)
        else:
            layout.prop(self, "default_value", text=text, slider=True)
    def draw_color(self, context, node):
        return (0.65, 0.65, 0.65, 1)

class PovraySocketFloat_10(bpy.types.NodeSocket):
    bl_idname = 'PovraySocketFloat_10'
    bl_label = 'Povray Socket'
    default_value: bpy.props.FloatProperty(description="Input node Value_10",min=-10,max=10,default=0)
    def draw(self, context, layout, node, text):
        if node.bl_idname == 'ShaderNormalMapNode' and node.inputs[2].is_linked:
            layout.label(text='')
            self.hide_value=True
        if self.is_linked:
            layout.label(text)
        else:
            layout.prop(self, "default_value", text=text, slider=True)
    def draw_color(self, context, node):
        return (0.65, 0.65, 0.65, 1)

class PovraySocketFloatPositive(bpy.types.NodeSocket):
    bl_idname = 'PovraySocketFloatPositive'
    bl_label = 'Povray Socket'
    default_value: bpy.props.FloatProperty(description="Input Node Value Positive", min=0.0, default=0)
    def draw(self, context, layout, node, text):
        if self.is_linked:
            layout.label(text)
        else:
            layout.prop(self, "default_value", text=text, slider=True)
    def draw_color(self, context, node):
        return (0.045, 0.005, 0.136, 1)

class PovraySocketFloat_000001_10(bpy.types.NodeSocket):
    bl_idname = 'PovraySocketFloat_000001_10'
    bl_label = 'Povray Socket'
    default_value: bpy.props.FloatProperty(min=0.000001,max=10,default=0.000001)
    def draw(self, context, layout, node, text):
        if self.is_output or self.is_linked:
            layout.label(text)
        else:
            layout.prop(self, "default_value", text=text, slider=True)
    def draw_color(self, context, node):
        return (1, 0, 0, 1)

class PovraySocketFloatUnlimited(bpy.types.NodeSocket):
    bl_idname = 'PovraySocketFloatUnlimited'
    bl_label = 'Povray Socket'
    default_value: bpy.props.FloatProperty(default = 0.0)
    def draw(self, context, layout, node, text):
        if self.is_linked:
            layout.label(text)
        else:
            layout.prop(self, "default_value", text=text, slider=True)
    def draw_color(self, context, node):
        return (0.7, 0.7, 1, 1)

class PovraySocketInt_1_9(bpy.types.NodeSocket):
    bl_idname = 'PovraySocketInt_1_9'
    bl_label = 'Povray Socket'
    default_value: bpy.props.IntProperty(description="Input node Value_1_9",min=1,max=9,default=6)
    def draw(self, context, layout, node, text):
        if self.is_linked:
            layout.label(text)
        else:
            layout.prop(self, "default_value", text=text)
    def draw_color(self, context, node):
        return (1, 0.7, 0.7, 1)

class PovraySocketInt_0_256(bpy.types.NodeSocket):
    bl_idname = 'PovraySocketInt_0_256'
    bl_label = 'Povray Socket'
    default_value: bpy.props.IntProperty(min=0,max=255,default=0)
    def draw(self, context, layout, node, text):
        if self.is_linked:
            layout.label(text)
        else:
            layout.prop(self, "default_value", text=text)
    def draw_color(self, context, node):
        return (0.5, 0.5, 0.5, 1)


class PovraySocketPattern(bpy.types.NodeSocket):
    bl_idname = 'PovraySocketPattern'
    bl_label = 'Povray Socket'

    default_value: bpy.props.EnumProperty(
            name="Pattern",
            description="Select the pattern",
            items=(
                ('boxed', "Boxed", ""),
                ('brick', "Brick", ""),
                ('cells', "Cells", ""),
                ('checker', "Checker", ""),
                ('granite', "Granite", ""),
                ('leopard', "Leopard", ""),
                ('marble', "Marble", ""),
                ('onion', "Onion", ""),
                ('planar', "Planar", ""),
                ('quilted', "Quilted", ""),
                ('ripples', "Ripples", ""),
                ('radial', "Radial", ""),
                ('spherical', "Spherical", ""),
                ('spotted', "Spotted", ""),
                ('waves', "Waves", ""),
                ('wood', "Wood", ""),
                ('wrinkles', "Wrinkles", "")
            ),
            default='granite')

    def draw(self, context, layout, node, text):
        if self.is_output or self.is_linked:
            layout.label(text="Pattern")
        else:
            layout.prop(self, "default_value", text=text)

    def draw_color(self, context, node):
        return (1, 1, 1, 1)

class PovraySocketColor(bpy.types.NodeSocket):
    bl_idname = 'PovraySocketColor'
    bl_label = 'Povray Socket'

    default_value: bpy.props.FloatVectorProperty(
            precision=4, step=0.01, min=0, soft_max=1,
            default=(0.0, 0.0, 0.0), options={'ANIMATABLE'}, subtype='COLOR')

    def draw(self, context, layout, node, text):
        if self.is_output or self.is_linked:
            layout.label(text)
        else:
            layout.prop(self, "default_value", text=text)

    def draw_color(self, context, node):
        return (1, 1, 0, 1)

class PovraySocketColorRGBFT(bpy.types.NodeSocket):
    bl_idname = 'PovraySocketColorRGBFT'
    bl_label = 'Povray Socket'

    default_value: bpy.props.FloatVectorProperty(
            precision=4, step=0.01, min=0, soft_max=1,
            default=(0.0, 0.0, 0.0), options={'ANIMATABLE'}, subtype='COLOR')
    f: bpy.props.FloatProperty(default = 0.0,min=0.0,max=1.0)
    t: bpy.props.FloatProperty(default = 0.0,min=0.0,max=1.0)
    def draw(self, context, layout, node, text):
        if self.is_output or self.is_linked:
            layout.label(text)
        else:
            layout.prop(self, "default_value", text=text)

    def draw_color(self, context, node):
        return (1, 1, 0, 1)

class PovraySocketTexture(bpy.types.NodeSocket):
    bl_idname = 'PovraySocketTexture'
    bl_label = 'Povray Socket'
    default_value: bpy.props.IntProperty()
    def draw(self, context, layout, node, text):
        layout.label(text)

    def draw_color(self, context, node):
        return (0, 1, 0, 1)



class PovraySocketTransform(bpy.types.NodeSocket):
    bl_idname = 'PovraySocketTransform'
    bl_label = 'Povray Socket'
    default_value: bpy.props.IntProperty(min=0,max=255,default=0)
    def draw(self, context, layout, node, text):
        layout.label(text)

    def draw_color(self, context, node):
        return (99/255, 99/255, 199/255, 1)

class PovraySocketNormal(bpy.types.NodeSocket):
    bl_idname = 'PovraySocketNormal'
    bl_label = 'Povray Socket'
    default_value: bpy.props.IntProperty(min=0,max=255,default=0)
    def draw(self, context, layout, node, text):
        layout.label(text)

    def draw_color(self, context, node):
        return (0.65, 0.65, 0.65, 1)

class PovraySocketSlope(bpy.types.NodeSocket):
    bl_idname = 'PovraySocketSlope'
    bl_label = 'Povray Socket'
    default_value: bpy.props.FloatProperty(min = 0.0, max = 1.0)
    height: bpy.props.FloatProperty(min = 0.0, max = 10.0)
    slope: bpy.props.FloatProperty(min = -10.0, max = 10.0)
    def draw(self, context, layout, node, text):
        if self.is_output or self.is_linked:
            layout.label(text)
        else:
            layout.prop(self,'default_value',text='')
            layout.prop(self,'height',text='')
            layout.prop(self,'slope',text='')
    def draw_color(self, context, node):
        return (0, 0, 0, 1)

class PovraySocketMap(bpy.types.NodeSocket):
    bl_idname = 'PovraySocketMap'
    bl_label = 'Povray Socket'
    default_value: bpy.props.StringProperty()
    def draw(self, context, layout, node, text):
        layout.label(text)
    def draw_color(self, context, node):
        return (0.2, 0, 0.2, 1)

class PovrayShaderNodeCategory(NodeCategory):
    @classmethod
    def poll(cls, context):
        return context.space_data.tree_type == 'ObjectNodeTree'

class PovrayTextureNodeCategory(NodeCategory):
    @classmethod
    def poll(cls, context):
        return context.space_data.tree_type == 'TextureNodeTree'

class PovraySceneNodeCategory(NodeCategory):
    @classmethod
    def poll(cls, context):
        return context.space_data.tree_type == 'CompositorNodeTree'

node_categories = [

    PovrayShaderNodeCategory("SHADEROUTPUT", "Output", items=[
        NodeItem("PovrayOutputNode"),
        ]),

    PovrayShaderNodeCategory("SIMPLE", "Simple texture", items=[
        NodeItem("PovrayTextureNode"),
        ]),

    PovrayShaderNodeCategory("MAPS", "Maps", items=[
        NodeItem("PovrayBumpMapNode"),
        NodeItem("PovrayColorImageNode"),
        NodeItem("ShaderNormalMapNode"),
        NodeItem("PovraySlopeNode"),
        NodeItem("ShaderTextureMapNode"),
        NodeItem("ShaderNodeValToRGB"),
        ]),

    PovrayShaderNodeCategory("OTHER", "Other patterns", items=[
        NodeItem("PovrayImagePatternNode"),
        NodeItem("ShaderPatternNode"),
        ]),

    PovrayShaderNodeCategory("COLOR", "Color", items=[
        NodeItem("PovrayPigmentNode"),
        ]),

    PovrayShaderNodeCategory("TRANSFORM", "Transform", items=[
        NodeItem("PovrayMappingNode"),
        NodeItem("PovrayMultiplyNode"),
        NodeItem("PovrayModifierNode"),
        NodeItem("PovrayTransformNode"),
        NodeItem("PovrayValueNode"),
        ]),

    PovrayShaderNodeCategory("FINISH", "Finish", items=[
        NodeItem("PovrayFinishNode"),
        NodeItem("PovrayDiffuseNode"),
        NodeItem("PovraySpecularNode"),
        NodeItem("PovrayPhongNode"),
        NodeItem("PovrayAmbientNode"),
        NodeItem("PovrayMirrorNode"),
        NodeItem("PovrayIridescenceNode"),
        NodeItem("PovraySubsurfaceNode"),
        ]),

    PovrayShaderNodeCategory("CYCLES", "Cycles", items=[
        NodeItem("ShaderNodeAddShader"),
        NodeItem("ShaderNodeAmbientOcclusion"),
        NodeItem("ShaderNodeAttribute"),
        NodeItem("ShaderNodeBackground"),
        NodeItem("ShaderNodeBlackbody"),
        NodeItem("ShaderNodeBrightContrast"),
        NodeItem("ShaderNodeBsdfAnisotropic"),
        NodeItem("ShaderNodeBsdfDiffuse"),
        NodeItem("ShaderNodeBsdfGlass"),
        NodeItem("ShaderNodeBsdfGlossy"),
        NodeItem("ShaderNodeBsdfHair"),
        NodeItem("ShaderNodeBsdfRefraction"),
        NodeItem("ShaderNodeBsdfToon"),
        NodeItem("ShaderNodeBsdfTranslucent"),
        NodeItem("ShaderNodeBsdfTransparent"),
        NodeItem("ShaderNodeBsdfVelvet"),
        NodeItem("ShaderNodeBump"),
        NodeItem("ShaderNodeCameraData"),
        NodeItem("ShaderNodeCombineHSV"),
        NodeItem("ShaderNodeCombineRGB"),
        NodeItem("ShaderNodeCombineXYZ"),
        NodeItem("ShaderNodeEmission"),
        NodeItem("ShaderNodeExtendedMaterial"),
        NodeItem("ShaderNodeFresnel"),
        NodeItem("ShaderNodeGamma"),
        NodeItem("ShaderNodeGeometry"),
        NodeItem("ShaderNodeGroup"),
        NodeItem("ShaderNodeHairInfo"),
        NodeItem("ShaderNodeHoldout"),
        NodeItem("ShaderNodeHueSaturation"),
        NodeItem("ShaderNodeInvert"),
        NodeItem("ShaderNodeLampData"),
        NodeItem("ShaderNodeLayerWeight"),
        NodeItem("ShaderNodeLightFalloff"),
        NodeItem("ShaderNodeLightPath"),
        NodeItem("ShaderNodeMapping"),
        NodeItem("ShaderNodeMaterial"),
        NodeItem("ShaderNodeMath"),
        NodeItem("ShaderNodeMixRGB"),
        NodeItem("ShaderNodeMixShader"),
        NodeItem("ShaderNodeNewGeometry"),
        NodeItem("ShaderNodeNormal"),
        NodeItem("ShaderNodeNormalMap"),
        NodeItem("ShaderNodeObjectInfo"),
        NodeItem("ShaderNodeOutput"),
        NodeItem("ShaderNodeOutputLamp"),
        NodeItem("ShaderNodeOutputLineStyle"),
        NodeItem("ShaderNodeOutputMaterial"),
        NodeItem("ShaderNodeOutputWorld"),
        NodeItem("ShaderNodeParticleInfo"),
        NodeItem("ShaderNodeRGB"),
        NodeItem("ShaderNodeRGBCurve"),
        NodeItem("ShaderNodeRGBToBW"),
        NodeItem("ShaderNodeScript"),
        NodeItem("ShaderNodeSeparateHSV"),
        NodeItem("ShaderNodeSeparateRGB"),
        NodeItem("ShaderNodeSeparateXYZ"),
        NodeItem("ShaderNodeSqueeze"),
        NodeItem("ShaderNodeSubsurfaceScattering"),
        NodeItem("ShaderNodeTangent"),
        NodeItem("ShaderNodeTexBrick"),
        NodeItem("ShaderNodeTexChecker"),
        NodeItem("ShaderNodeTexCoord"),
        NodeItem("ShaderNodeTexEnvironment"),
        NodeItem("ShaderNodeTexGradient"),
        NodeItem("ShaderNodeTexImage"),
        NodeItem("ShaderNodeTexMagic"),
        NodeItem("ShaderNodeTexMusgrave"),
        NodeItem("ShaderNodeTexNoise"),
        NodeItem("ShaderNodeTexPointDensity"),
        NodeItem("ShaderNodeTexSky"),
        NodeItem("ShaderNodeTexVoronoi"),
        NodeItem("ShaderNodeTexWave"),
        NodeItem("ShaderNodeTexture"),
        NodeItem("ShaderNodeUVAlongStroke"),
        NodeItem("ShaderNodeUVMap"),
        NodeItem("ShaderNodeValToRGB"),
        NodeItem("ShaderNodeValue"),
        NodeItem("ShaderNodeVectorCurve"),
        NodeItem("ShaderNodeVectorMath"),
        NodeItem("ShaderNodeVectorTransform"),
        NodeItem("ShaderNodeVolumeAbsorption"),
        NodeItem("ShaderNodeVolumeScatter"),
        NodeItem("ShaderNodeWavelength"),
        NodeItem("ShaderNodeWireframe"),
        ]),

    PovrayTextureNodeCategory("TEXTUREOUTPUT", "Output", items=[
        NodeItem("TextureNodeValToRGB"),
        NodeItem("TextureOutputNode"),
        ]),

    PovraySceneNodeCategory("ISOSURFACE", "Isosurface", items=[
        NodeItem("IsoPropsNode"),
        ]),

    PovraySceneNodeCategory("FOG", "Fog", items=[
        NodeItem("PovrayFogNode"),

        ]),
    ]
############### end nodes

###############################################################################
# Texture POV properties.
###############################################################################

class RenderPovSettingsTexture(PropertyGroup):
    """Declare texture level properties controllable in UI and translated to POV."""

    # former Space properties from removed Blender Internal
    active_texture_index: IntProperty(
        name = "Index for texture_slots",
        min=0,
        max=17,
        default=0,
    )

    use_limited_texture_context: BoolProperty(
        name="",
        description="Use the limited version of texture user (for ‘old shading’ mode)",
        default=True,
    )

    texture_context: EnumProperty(
        name="Texture context",
        description="Type of texture data to display and edit",
        items=(
            ('MATERIAL', "", "Show material textures", "MATERIAL",0), # "Show material textures"
            ('WORLD', "", "Show world textures", "WORLD",1), # "Show world textures"
            ('LAMP', "", "Show lamp textures", "LIGHT",2), # "Show lamp textures"
            ('PARTICLES', "", "Show particles textures", "PARTICLES",3), # "Show particles textures"
            ('LINESTYLE', "", "Show linestyle textures", "LINE_DATA",4), # "Show linestyle textures"
            ('OTHER', "", "Show other data textures", "TEXTURE_DATA",5), # "Show other data textures"
        ),
        default = 'MATERIAL',
    )

    # Custom texture gamma
    tex_gamma_enable: BoolProperty(
        name="Enable custom texture gamma",
        description="Notify some custom gamma for which texture has been precorrected "
        "without the file format carrying it and only if it differs from your "
        "OS expected standard (see pov doc)",
        default=False,
    )

    tex_gamma_value: FloatProperty(
        name="Custom texture gamma",
        description="value for which the file was issued e.g. a Raw photo is gamma 1.0",
        min=0.45, max=5.00, soft_min=1.00, soft_max=2.50, default=1.00
    )

    ##################################CustomPOV Code############################
    # commented out below if we wanted custom pov code in texture only, inside exported material:
    # replacement_text = StringProperty(
    #        name="Declared name:",
    #        description="Type the declared name in custom POV code or an external .inc "
    #                    "it points at. pigment {} expected",
    #        default="")

    tex_pattern_type: EnumProperty(
        name="Texture_Type",
        description="Choose between Blender or POV parameters to specify texture",
        items= (
            ('agate', 'Agate', '','PLUGIN', 0),
            ('aoi', 'Aoi', '', 'PLUGIN', 1),
            ('average', 'Average', '', 'PLUGIN', 2),
            ('boxed', 'Boxed', '', 'PLUGIN', 3),
            ('bozo', 'Bozo', '', 'PLUGIN', 4),
            ('bumps', 'Bumps', '', 'PLUGIN', 5),
            ('cells', 'Cells', '', 'PLUGIN', 6),
            ('crackle', 'Crackle', '', 'PLUGIN', 7),
            ('cubic', 'Cubic', '', 'PLUGIN', 8),
            ('cylindrical', 'Cylindrical', '', 'PLUGIN', 9),
            ('density_file', 'Density', '(.df3)', 'PLUGIN', 10),
            ('dents', 'Dents', '', 'PLUGIN', 11),
            ('fractal', 'Fractal', '', 'PLUGIN', 12),
            ('function', 'Function', '', 'PLUGIN', 13),
            ('gradient', 'Gradient', '', 'PLUGIN', 14),
            ('granite', 'Granite', '', 'PLUGIN', 15),
            ('image_pattern', 'Image pattern', '', 'PLUGIN', 16),
            ('leopard', 'Leopard', '', 'PLUGIN', 17),
            ('marble', 'Marble', '', 'PLUGIN', 18),
            ('onion', 'Onion', '', 'PLUGIN', 19),
            ('pigment_pattern', 'pigment pattern', '', 'PLUGIN', 20),
            ('planar', 'Planar', '', 'PLUGIN', 21),
            ('quilted', 'Quilted', '', 'PLUGIN', 22),
            ('radial', 'Radial', '', 'PLUGIN', 23),
            ('ripples', 'Ripples', '', 'PLUGIN', 24),
            ('slope', 'Slope', '', 'PLUGIN', 25),
            ('spherical', 'Spherical', '', 'PLUGIN', 26),
            ('spiral1', 'Spiral1', '', 'PLUGIN', 27),
            ('spiral2', 'Spiral2', '', 'PLUGIN', 28),
            ('spotted', 'Spotted', '', 'PLUGIN', 29),
            ('waves', 'Waves', '', 'PLUGIN', 30),
            ('wood', 'Wood', '', 'PLUGIN', 31),
            ('wrinkles', 'Wrinkles', '', 'PLUGIN', 32),
            ('brick', "Brick", "", 'PLUGIN', 33),
            ('checker', "Checker", "", 'PLUGIN', 34),
            ('hexagon', "Hexagon", "", 'PLUGIN', 35),
            ('object', "Mesh", "", 'PLUGIN', 36),
            ('emulator', "Internal Emulator", "", 'PLUG', 37)
        ),
        default='emulator',
    )

    magnet_style: EnumProperty(
        name="Magnet style",
        description="magnet or julia",
        items=(('mandel', "Mandelbrot", ""),('julia', "Julia", "")),
        default='julia',
    )

    magnet_type: IntProperty(
        name="Magnet_type",
        description="1 or 2",
        min=1,
        max=2,
        default=2,
    )

    warp_types: EnumProperty(
        name="Warp Types",
        description="Select the type of warp",
        items=(('PLANAR', "Planar", ""), ('CUBIC', "Cubic", ""),
               ('SPHERICAL', "Spherical", ""), ('TOROIDAL', "Toroidal", ""),
               ('CYLINDRICAL', "Cylindrical", ""), ('NONE', "None", "No indentation")),
        default='NONE'
    )

    warp_orientation: EnumProperty(
        name="Warp Orientation",
        description="Select the orientation of warp",
        items=(('x', "X", ""), ('y', "Y", ""), ('z', "Z", "")),
        default='y',
    )

    wave_type: EnumProperty(
        name="Waves type",
        description="Select the type of waves",
        items=(('ramp', "Ramp", ""), ('sine', "Sine", ""), ('scallop', "Scallop", ""),
               ('cubic', "Cubic", ""), ('poly', "Poly", ""), ('triangle', 'Triangle', "")),
        default='ramp',
    )

    gen_noise: IntProperty(
        name="Noise Generators",
        description="Noise Generators",
        min=1, max=3, default=1,
    )

    warp_dist_exp: FloatProperty(
        name="Distance exponent",
        description="Distance exponent",
        min=0.0, max=100.0, default=1.0,
    )

    warp_tor_major_radius: FloatProperty(
        name="Major radius",
        description="Torus is distance from major radius",
        min=0.0, max=5.0, default=1.0,
    )

    warp_turbulence_x: FloatProperty(
        name="Turbulence X",
        description="Turbulence X",
        min=0.0, max=5.0, default=0.0,
    )

    warp_turbulence_y: FloatProperty(
        name="Turbulence Y",
        description="Turbulence Y",
        min=0.0, max=5.0, default=0.0
    )

    warp_turbulence_z: FloatProperty(
        name="Turbulence Z",
        description="Turbulence Z",
        min=0.0, max=5.0, default=0.0
    )

    modifier_octaves: IntProperty(
        name="Turbulence octaves",
        description="Turbulence octaves",
        min=1, max=10, default=1
    )

    modifier_lambda: FloatProperty(
        name="Turbulence lambda",
        description="Turbulence lambda",
        min=0.0, max=5.0, default=1.00
    )

    modifier_omega: FloatProperty(
        name="Turbulence omega",
        description="Turbulence omega",
        min=0.0, max=10.0, default=1.00
    )

    modifier_phase: FloatProperty(
        name="Phase",
        description="The phase value causes the map entries to be shifted so that the map "
        "starts and ends at a different place",
        min=0.0, max=2.0, default=0.0
    )

    modifier_frequency: FloatProperty(
        name="Frequency",
        description="The frequency keyword adjusts the number of times that a color map "
        "repeats over one cycle of a pattern",
        min=0.0, max=25.0, default=2.0
    )

    modifier_turbulence: FloatProperty(
        name="Turbulence",
        description="Turbulence",
        min=0.0, max=5.0, default=2.0
    )

    modifier_numbers: IntProperty(
        name="Numbers",
        description="Numbers",
        min=1, max=27, default=2
    )

    modifier_control0: IntProperty(
        name="Control0",
        description="Control0",
        min=0, max=100, default=1
    )

    modifier_control1: IntProperty(
        name="Control1",
        description="Control1",
        min=0, max=100, default=1
    )

    brick_size_x: FloatProperty(
        name="Brick size x",
        description="",
        min=0.0000, max=1.0000, default=0.2500
    )

    brick_size_y: FloatProperty(
        name="Brick size y",
        description="",
        min=0.0000, max=1.0000, default=0.0525
    )

    brick_size_z: FloatProperty(
        name="Brick size z",
        description="",
        min=0.0000, max=1.0000, default=0.1250
    )

    brick_mortar: FloatProperty(
        name="Mortar",
        description="Mortar",
        min=0.000, max=1.500, default=0.01
    )

    julia_complex_1: FloatProperty(
        name="Julia Complex 1",
        description="",
        min=0.000, max=1.500, default=0.360
    )

    julia_complex_2: FloatProperty(
        name="Julia Complex 2",
        description="",
        min=0.000, max=1.500, default=0.250
    )

    f_iter: IntProperty(
        name="Fractal Iteration",
        description="",
        min=0, max=100, default=20
    )

    f_exponent: IntProperty(
        name="Fractal Exponent",
        description="",
        min=2, max=33, default=2
    )

    f_ior: IntProperty(
        name="Fractal Interior",
        description="",
        min=1, max=6, default=1
    )

    f_ior_fac: FloatProperty(
        name="Fractal Interior Factor",
        description="",
        min=0.0, max=10.0, default=1.0
    )

    f_eor: IntProperty(
        name="Fractal Exterior",
        description="",
        min=1, max=8, default=1
    )

    f_eor_fac: FloatProperty(
        name="Fractal Exterior Factor",
        description="",
        min=0.0, max=10.0, default=1.0
    )

    grad_orient_x: IntProperty(
        name="Gradient orientation X",
        description="",
        min=0, max=1, default=0
    )

    grad_orient_y: IntProperty(
        name="Gradient orientation Y",
        description="",
        min=0, max=1, default=1
    )

    grad_orient_z: IntProperty(
        name="Gradient orientation Z",
        description="",
        min=0, max=1, default=0