I'd tried that but it seems to only evaluate initially and then not update
when the switch node switches.  must be something about it being a
backdrop...

On Thu, Jan 5, 2012 at 3:55 PM, Diogo Girondi <[email protected]>wrote:

> In theory if I understand you correctly you could just replace the
> "this.tile_color" for "BackdropNode1.tile_color" to have the Switch node
> driving the BackdropNode tile color. The problem is that you will have to
> explicitly state the backdrop's node name so it might not be that useful.
>
> So python callbacks might end up being a better option for you.
>
> But I'll see if I can think of a better approach to this using TCL in
> labels.
>
>
>
> cheers,
> diogo
>
>
>
>
> On Thu, Jan 5, 2012 at 5:47 PM, J Bills <[email protected]> wrote:
>
>> diogo, this is awesome.  I'll use this all the time.
>>
>> so say your code here going in a switch node and were changing it from
>> red to green like this...   do you know what the syntax would be to link a
>> backdrop node to the switch so the whole background changes red or green
>> along with it?
>>
>> i'm trying to figure out a way to do it but I can't quite seem to link
>> them up.  i might be able to do it with some sort of knobchanged callback
>> but I'd love it if there were some way to evaluate the tile_color of
>> another node directly in your tcl line, because it's nice and clean.
>> callbacks are so very very dirty...  :)
>>
>>
>> On Tue, Jan 3, 2012 at 4:34 PM, Diogo Girondi <[email protected]>wrote:
>>
>>> Now that I'm in front of Nuke I realize that I've missed the brackets on
>>> the return code in order to allow it to be evaluated by the label.
>>>
>>>
>>> So here is the actual code:
>>>
>>>
>>> [if {[value this.disable]=="false"} {return "[knob this.tile_color
>>> 0xff000000]"} {return "[knob this.tile_color 0xff00ff]"}]
>>>
>>> Hope it helps.
>>>
>>>
>>> cheers,
>>> diogo
>>>
>>> On Wed, Dec 28, 2011 at 5:26 PM, Simon Björk <[email protected]>wrote:
>>>
>>>> Thanks a lot for your help Diogo. I tried that code but couldn't figure
>>>> out how to use it. I solved the problem with python callbacks (and with
>>>> some code you posted a few moths ago).
>>>>
>>>>
>>>> 2011/12/27 Diogo Girondi <[email protected]>
>>>>
>>>>> Ahhh!
>>>>>
>>>>> Well there is a simpler (less reliable) way that works and doesn't
>>>>> take you the callback which is using a standard if then else in TCL using
>>>>> the node's label.
>>>>>
>>>>> Pseudo code with missing everything (because I can't test this right
>>>>> now and TCL is fading in my brain)
>>>>>
>>>>> [if {[value knob]==something} then {return "knob tile_color 1 0 0}
>>>>> else {return "knob tile_color 0 1 0"}]
>>>>>
>>>>> Cheers,
>>>>> Diogo
>>>>>
>>>>> On 27/12/2011, at 07:51, matt estela <[email protected]> wrote:
>>>>>
>>>>> heh, i just stumbled across the code, i didn't write it, nor do i have
>>>>> nuke at home to test it. :)
>>>>>
>>>>>
>>>>> On 27 December 2011 10:13, Simon Björk <[email protected]>wrote:
>>>>>
>>>>>> Yes, I'm talking of the actual color of the node. I have a script
>>>>>> where I have a lot of elements fading in at different time and it would 
>>>>>> be
>>>>>> very easy to visually see if they are enabled by just looking at the 
>>>>>> color
>>>>>> of the nodes.
>>>>>>
>>>>>> Matt, the method in the link you posted doesn't seem to work, nothing
>>>>>> happens when I change the value of the checkboxes.
>>>>>>
>>>>>>
>>>>>>
>>>>>> 2011/12/26 matt estela <[email protected]>
>>>>>>
>>>>>>> I think Simon was talking about the colour of the node, not the
>>>>>>> result of the mix itself.
>>>>>>>
>>>>>>> This might be what your after:
>>>>>>>
>>>>>>> http://pastebin.com/4dyBTAnP
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> On 27 December 2011 05:27, Diogo Girondi <[email protected]>wrote:
>>>>>>>
>>>>>>>> this.mix==1?0:1
>>>>>>>> this.mix==1?1:0
>>>>>>>>
>>>>>>>> Just add the first line to the red channel and the second to the
>>>>>>>> green channel. But if you need to "dissolve" between the values use:
>>>>>>>>
>>>>>>>> abs(-1+this.mix)
>>>>>>>> this.mix
>>>>>>>>
>>>>>>>> For red and green respectively.
>>>>>>>>
>>>>>>>>
>>>>>>>> On 26/12/2011, at 13:06, Simon Björk <[email protected]>
>>>>>>>> wrote:
>>>>>>>>
>>>>>>>> Is there a way to add an expression to the color of a node? For
>>>>>>>> example I have a node with a mix slider and want the color of the node 
>>>>>>>> to
>>>>>>>> be green if the value is 1 and red if the value is 0. But I can't find 
>>>>>>>> a
>>>>>>>> way to add an expression to this.
>>>>>>>>
>>>>>>>> --------------------------------
>>>>>>>> Stiller Studios
>>>>>>>> Lidingö/Sweden
>>>>>>>>
>>>>>>>> Simon Björk
>>>>>>>> Stiller Studios
>>>>>>>> +46 (0)8 555 23 560
>>>>>>>> Ekholmsnäsvägen 40, S-181 41 Lidingö
>>>>>>>> [email protected]
>>>>>>>> www.stillerstudios.se
>>>>>>>>
>>>>>>>> find us:
>>>>>>>> http://www.eniro.se/query?search_word=stiller+studios&geo_area=liding%F6&what=all
>>>>>>>>
>>>>>>>>
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>>>>>>
>>>>>>
>>>>>>
>>>>>>  --
>>>>>> --------------------------------
>>>>>> Stiller Studios
>>>>>> Lidingö/Sweden
>>>>>>
>>>>>> Simon Björk
>>>>>> Stiller Studios
>>>>>> +46 (0)8 555 23 560
>>>>>> Ekholmsnäsvägen 40, S-181 41 Lidingö
>>>>>> [email protected]
>>>>>> www.stillerstudios.se
>>>>>>
>>>>>> find us:
>>>>>> http://www.eniro.se/query?search_word=stiller+studios&geo_area=liding%F6&what=all
>>>>>>
>>>>>>
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>>>>>
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>>>>
>>>>
>>>>
>>>> --
>>>> --------------------------------
>>>> Stiller Studios
>>>> Lidingö/Sweden
>>>>
>>>> Simon Björk
>>>> Stiller Studios
>>>> +46 (0)8 555 23 560
>>>> Ekholmsnäsvägen 40, S-181 41 Lidingö
>>>> [email protected]
>>>> www.stillerstudios.se
>>>>
>>>> find us:
>>>> http://www.eniro.se/query?search_word=stiller+studios&geo_area=liding%F6&what=all
>>>>
>>>>
>>>>
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