I have used a product from DAZ3D to reduce the height of the V4 figure, in this case from the default 6' 2" to 5' 8".  All seems to go well except that in certain poses the arms bulge in a strange manner.  I have narrowed it down to being with the up/down movement and it is worse at the mid point.  The problem is not apparent in the default pose and hardly noticable with the arm right down.  I am no expert but my first guess is a problem with the shoulder joint am I correct and how do I fix it.  

It happens on both arms.

I'm no expert in these matters either but I guess it's something to do with the joint parameters.  If that's the case, I'd suggest the joint fall off zones need adjustment.

That said, I strongly advise you to wait until someone else - who knows about these things - stops by.

Quote - I am no expert but my first guess is a problem with the shoulder joint am I correct and how do I fix it.

The problem is happening where the Collar mesh group meets the Shldr group. So yes, you almost certainly are correct. In V4 type figures, where the collar group extends a long way into the upper arm, scaling the figure can cause the sort of problem you are seeing. I have experienced the problem myself when trying to make a scaled version of V4, and have not yet found a satisfactory solution.

If you yourself have not applied any scaling other than what might be being applied from your DAZ product, and if you are using that product in accordance with its instructions, then it looks like DAZ have not found a satisfactory solution either.

I have what I think is the set you are talking about and had the same issues in Poser. I got the impression in a thread on the Daz forums that the issue is not present in Studio.

What is easier is to use the SP4 height morph only on V4.

But for just V4 and no SP4 morphs:

There are a zillion rulers out there and I don't want to get in a debate which one is correct. I got one and set it thru the center of V4 started writing my own pose file. Now is my method accurate. No! I use the scale dial where the set that I think you are talking about only changes the Y-scale. As a person gets shorter or tailer does their arm diameter change in the same proportion? But there are other FBM's you can use to change to bulk up or even make V4 skinner. My method works for me. Just use one of the copy scaling Python scripts and most clothes will fit without any fuss.

I am on the road with my laptop and don't have the data I need with me. But I made an excel spread sheet for all the body parts and then did a bunch of calculations after I got one to bend right and fed the differnt numbers into the various pose files I created. I have V4 going from 4-10 to 6-0. And (blush) because I am a leg man, also have a set that adds 1.5, 3, 4,5 inches to V4 legs. I also have a set I made using my method for M4. Again think FBM's to bulk up the character if you make them a lot shorter then say an inch or two.

My 5-8.5 for the collar, shoulder and forearm uses the below and I don't see what you are seeing. All the numbers past the decimal point are needed or you get the bulges you are seeing.

 

actor lCollar:1
    {
    channels
        {
        scale scale
            {
            keys
                {
                k  0  0.93850029
                }
            }
        }
    }
actor lShldr:1
    {
    channels
        {
        scale scale
            {
            keys
                {
                k  0  0.935
                }
            }
        }
    }
actor lForeArm:1
    {
    channels
        {
        scale scale
            {
            keys
                {
                k  0  0.935
                }
            }
        }
    }

 

I think I have that same product too and I have unhidden the taper dial which can help, but I have also had to use postwork at times too. It's been a pain. I wish I had used the SP3 height morph now for that character.

Love esther

May I presume we’re all looking for the proper, scholarly fix, (and hence skipping over reference to the quickie, lo-tech, cheat, for *single frames*, which is to unhide the TRANS dials, and just temporarily nudge that baby into alignment?)

Thanks to everyone who responded to this.  Thanks grichter, I tried the changes you suggested but they don't seem to work for me.  Then again I am very new to going this deep so I may have made the changes in the wrong place, but thanks for taking the time answer.

I am glad that others are having the same problem in the sense that it shows I have not created the problem by doing something stupid.  I have also made a discovery in all this playing.  I set the figure to the default pose and then moved the arm to the point where the problem is most apparent.  I don't know why I did, but I right clicked the transforms and selected reset.  As expected the arm moved to the default position.  What was not expected is that the problem is now much reduced.  I tried the same on the other arm with the same effect but I have no idea why this should work.

If you want one of my self created files (pz2) to take a peek at or use the whole thing send me a PM with your email address and I will zip up one of my self created files and email to you to try.

I've got a feeling I started seeing the problem suddenly when it wasn't there before.  Perhaps after I loaded in some muscular morphs.

Love esther

I've had similar issues a long time ago... unfortunately I can't remember how I resolved it... but I don't think it was occasioned by the same product you're using.

There are many of these sorts of problems that show up with DAZ characters in Poser as opposed to DS. Another is the case where you do extensive morphing and little parallel lines appear in the Poser render - but not in DS.

I believe that particular problem is caused by scaling down X on the chest.

 

DS handles scaling differently than Poser and there are no plans to change that as far as we know.

funily enough I only had the problem on the left forearm and not on the right with my V4 using (i presume) the character set that the original poster referred to.  the right forearm was fine.

Love esther

Thanks to the help and assistance of 'grichter' I now have a 5'4" version of my favorite V4 character that bends in all the right places without looking as though the figure has broken limbs.

 

Geez, Grichter, that sounds like something the Poser community could really use. And this little chicken would definitely use! Good ON you for figuring it out!