local MyGraphScript = {}
    
    -- variables declared in the script scope are visible for all functions in our
    -- script for as long as the scripted graph is not deleted or reloaded (in
    -- programming terms, our two functions become "closures").
    local inputs,outputs, tex
    

    -- onInit function, this is called once in the beginning.
    function MyGraphScript.onInit(self, graph)
        -- input and output infos
        local inputInfos = {
            {type=octane.PT_TEXTURE, label="Texture", defaultNodeType=octane.NT_TEX_IMAGE},
            {type=octane.PT_TRANSFORM, label="Transform", defaultNodeType=octane.NT_TRANSFORM_VALUE}
        }
        
        local outputInfos = {
            {type=octane.PT_TEXTURE, label="Texture"},
            {type=octane.PT_TEXTURE, label="TextureWithOffset"}
        }
        
        -- use these functions to set up input and output linkers. This will keep
        -- existing linkers so existing connections in the parent graph are kept.
        inputs = graph:setInputLinkers(inputInfos)
        outputs = graph:setOutputLinkers(outputInfos)
        
        
        -- set up a node to give the graph some output value
        --tex = octane.node.create{ type=octane.NT_TEX_IMAGE, name="localTexture", graphOwner=graph }
        --outputs[1]:connectTo("input", tex)
        local inTex		= inputs[1]:getConnectedNode(octane.P_INPUT)
        local Tex1      = octane.nodegraph.copyItemTree(graph, inTex)
        local Tex2      = octane.nodegraph.copyItemTree(graph, inTex)
        local inUV	    = inputs[2]:getConnectedNode(octane.P_INPUT)
        local UV2       = octane.nodegraph.copyItemTree(graph, inUV)
        Tex2:connectTo(octane.P_TRANSFORM, UV2)
        outputs[1]:connectTo(octane.P_INPUT, Tex1)
        outputs[2]:connectTo(octane.P_INPUT, Tex2)
    end




    -- this function is called every time the value of an input linker changes
    function MyGraphScript.onEvaluate(self, graph)
        
        local inTex		= inputs[1]:getConnectedNode(octane.P_INPUT)
        local Tex2      = octane.nodegraph.copyItemTree(graph, inTex)
        local inUV	    = inputs[2]:getConnectedNode(octane.P_INPUT)
        local UV2       = octane.nodegraph.copyItemTree(graph, inUV)
        Tex2:connectTo(octane.P_TRANSFORM, UV2)
        outputs[2]:connectTo(octane.P_INPUT, Tex2)
    end

    -- In lua, a script is run as if the script defines a function body, so
    -- like in a function you may return a value
    return MyGraphScript