A question of setDrivenKeyframe!

[seeks]

Hi guys:

When I was on the scale of an object when multiple setdrivenkey, values automatically into a 2, but I don't have to set this value, I don't know where is the problem, you think this is Maya bug? I'm afraid I didn't expressed very clearly, I attach a picture and a maya2013 file.. Now I just found animCurveUU appears superimposed, didn't know if other animcurve would like this.

Thanks for help!

[Eduardo Grana]

Hello Seeks,

May be this is beacause of the blendweighted node, since it

performs a weighted sum of its inputs to compute the output.
output = input(0) * weight(0) + input(1) * weight(1) + ...   

(copied from the maya help page http://download.autodesk.com/global/docs/maya2013/en_us/Nodes/index.html)

This works fine with atributes like translate and rotate, but not so well with scale.

Maybe you can adjust the weight attribute of the indices connected to scale attributes

to 1/ <number of inputs to the scale>, in order to get 1 as the overal sum.

Hope this helps! 

Cheers,

Eduardo

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Eduardo Graña
www.eduardograna.com.ar

[seeks]

It seems I can only remove scale animCurveUU, after removing the problem is not too large. Haha, I'm writing a script about facial SDK, so use it. Thanks again!

[seeks]

When I tested, I found another animCurve will have the same problem, I guess I have to deal with that, if you have any good suggestions, please let me know, thanks!