nodes.py

    def init(self, context):
        tex = bpy.context.object.active_material.active_texture
        num_sockets = int(tex.pov.density_lines / 32)
        for i in range(num_sockets):
            color = self.inputs.new("NodeSocketColor", "%s" % i)
            color.hide_value = True

    def draw_buttons(self, context, layout):

        layout.label(text="Color Ramps:")

    def draw_label(self):
        return "Color Map"


classes = (
    PovrayOutputNode,
    PovrayTextureNode,
    PovrayFinishNode,
    PovrayDiffuseNode,
    PovrayPhongNode,
    PovraySpecularNode,
    PovrayMirrorNode,
    PovrayAmbientNode,
    PovrayIridescenceNode,
    PovraySubsurfaceNode,
    PovrayMappingNode,
    PovrayMultiplyNode,
    PovrayTransformNode,
    PovrayValueNode,
    PovrayModifierNode,
    PovrayPigmentNode,
    PovrayColorImageNode,
    PovrayBumpMapNode,
    PovrayImagePatternNode,
    ShaderPatternNode,
    ShaderTextureMapNode,
    ShaderNormalMapNode,
    ShaderNormalMapEntryNode,
    IsoPropsNode,
    PovrayFogNode,
    PovraySlopeNode,
    TextureOutputNode,
)


def register():
    for cls in classes:
        register_class(cls)


def unregister():
    for cls in reversed(classes):
        unregister_class(cls)