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How do I configure backpack straps to stay in place?

davehal9000davehal9000 Posts: 19
in New Users

I'm working on some figures to be 3d printed for my nephew's going away party, leaving for Army basic this summer.

The uniform is a Daz product.  Helmet and rifle off the net.  The rest I made myself.  Problem I'm having is the straps on the chest rig get distorted when I pose the figure.  Any way to fix this?

 

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Comments

  • L'AdairL'Adair Posts: 9,479

    Did you model the backpack and "chest rig" yourself?

    If so, the easiest way would be to finalize the pose and then modigy the model in your modeling program to fit clothed figure correctly.

    I used Hexagon to modify the backpack from this World War II uniform. You can see my Daz Studio viewport saves before and after here. You can see how distorted the backpack is when "fit to" the posed figure. I lost my first attempt when Hexagon died, but I also changed my starting point.

    I learned you don't need to undo the distortion of autofit if you only parent the backpack to the figure. That also lets you move it to where the least amount of things need to be morphed. I used the shirt as my guide in Hexagon, and made the straps fit as realistically tight as I could. And I was able to select and move the each of the rigid parts as one, keeping their original shape. Once I was happy with the changes, I saved the backpack as a Wavefront OBJ. You can do the same from the program you modeled the item in originally. When you like the results, save the file as you did the original object. Bring this into Daz Studio and parent it to your figure.

    You could use the modified object to create a morph for the original, but that's several extra steps and won't give you any better results in the final render.

    Even if you didn't model the backpack yourself, you can modify it in a modeling program like Hexagon, though it may take you a lot longer if you have to learn the program first.

  • davehal9000davehal9000 Posts: 19

    The backpack is an obj file I modified in Zbrush, adding and removing features.  The chest rig was done from scratch along with all the pouches on it. 

    I built everything on a dummy in Zbrush, then sent it back to Daz.  Used the transfer utility and saved it.  Works great on a static pose but as soon as I set a new pose everything moves around. 

    So are you saying I should send this figure, in the current pose, back over to Zbrush and fit it that way? 

  • L'AdairL'Adair Posts: 9,479
    davehal9000 said:

    The backpack is an obj file I modified in Zbrush, adding and removing features.  The chest rig was done from scratch along with all the pouches on it. 

    I built everything on a dummy in Zbrush, then sent it back to Daz.  Used the transfer utility and saved it.  Works great on a static pose but as soon as I set a new pose everything moves around. 

    So are you saying I should send this figure, in the current pose, back over to Zbrush and fit it that way? 

    Yes.

    Because you already know how to use ZBrush, at least to some extent, I think you will get the best results, and have more control over the outcome.

    While you may not want to do something like that for every scene you create, this project sounds really important to you for personal reasons, and is well worth the extra effort.

  • davehal9000davehal9000 Posts: 19

    Sounds good.  I appreciate it!

     

  • L'AdairL'Adair Posts: 9,479

    You're welcome.

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