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Constraining Rigidbody or object to Spline

WojtkoWojtko Posts: 82
in Technical Help (nuts n bolts)

Hello,

Is there the possibility of following an object in a rail (spline).
So when I want to move it can not get out of the way of the rail.
Attention, I do not speak of animation but of constraint of movement.

Comments

  • Richard HaseltineRichard Haseltine Posts: 108,019

    If the rail is circular you can do that by moving the item's centrepoint to the middle of the circle and just use the Y-rotation. For an arbitrary path, however, I don't think there's a way to do that precisely - straights and arcs might be doable, at least for a limited number, by offsetting the centrepoint by a ling to a master control linked to the translation but that would be very complex to set-up (at best).

  • WojtkoWojtko Posts: 82

    Thank you Richard for this answer.
    I have found this, but I have not yet tried it, I wonder if this could serve.

    https://sites.google.com/site/mcasualsdazscripts2/mcjcolliderds45

    Patrick

     

  • pdspds Posts: 593
    Richard Haseltine said:

    If the rail is circular you can do that by moving the item's centrepoint to the middle of the circle and just use the Y-rotation. For an arbitrary path, however, I don't think there's a way to do that precisely - straights and arcs might be doable, at least for a limited number, by offsetting the centrepoint by a ling to a master control linked to the translation but that would be very complex to set-up (at best).

    Hi Richard, I know I stumbled across how to change an object's center point a while back but I can't seem to locate that thread. Would you please refresh my memory on how to do it?

  • Richard HaseltineRichard Haseltine Posts: 108,019

    The centre point can be edited with the Joint Editor tool - that's its default action.

  • pdspds Posts: 593
    edited April 2017
    Richard Haseltine said:

    The centre point can be edited with the Joint Editor tool - that's its default action.

    Thank you smiley

    I also realized I could do the equivalent to a "freeze transform" by repositioning an object then exporting it as an .obj and then reimporting it into Daz Studio so now I'm set. 

    Post edited by pds on
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