yes, that`s what I started from, my node is based on this proxy. But it doesn`t seem to have implemented output attributes for translate/ rotate. I checked the example surface constraint too. There are only some useful internal methods, but I guess you need to make your own outputs. But, I just looked at multiway constraint (just have the PDFs, not the code) and they are using pairBlend nodes. Very smart! :) So I tested it and it works. If you output your values via pairBlend you get both: set value, but still leave it "free" to change interactively. I also tested adding keyframes, and Maya picked up existing pairBlend node automaticly - even better. So I guess it will follow animation and when constraint input would get dirty it would set its values over keyframes.
J On Aug 20, 8:35 pm, Jan Berger <j...@janberger.de> wrote: > Didnt they introduce a MPXConstraint class at some point for custom > constraints > to get this behaviour? > > At 21:29 20.08.2011, you wrote: > > >I`m working on custom constraint and wonder how Maya does the > >connections to translate or rotate attribute, so they can be still > >changed. I will explain it more. If you make Maya constraint, you can > >still move constrained object around, even if there are connections. > >Actually Maya keyframes work the same way, you couldn`t animate really > >if once keyframe is connected object`s attribute values couldn`t > >change. > >So I wonder if this is internal way of plug evaluation or I need > >specific type of attribute (constraintTranslate seems to be simple > >double3 type). Does anyone know how this works? thanks. > > >-- > >view archives:http://groups.google.com/group/python_inside_maya > >change your subscription settings: > >http://groups.google.com/group/python_inside_maya/subscribe > > Jan Berger > j...@janberger.de ::www.janberger.de -- view archives: http://groups.google.com/group/python_inside_maya change your subscription settings: http://groups.google.com/group/python_inside_maya/subscribe
