Loading...
> >

pJCMs: "Make Unique" vs "Deltas Only"

Eternal ForceEternal Force Posts: 301
in Daz Studio Discussion

I've read a few tutorials about JCMs. When you are inserting your custom made OBJ file (with Morph Loader Pro) and you need to fill in the line "Overwrite Existing", some people recommend to use the option "Make Unique". The others suggest to use "Deltas Only". What's the difference? 

What does it exactly meant to make it unique? What are these deltas? I always love to understand what I am doing. Can you help me?  

Comments

  • barbultbarbult Posts: 24,694

    This is what I think it means, but I am not an expert:

    Make Unique creates a new morph. Deltas Only modifies the vertex positions of an existing morph. "Deltas" means "changes" in vertex position. A morph is essentially a list of changes in the position of an object's vertices.

  • Eternal ForceEternal Force Posts: 301
    edited July 2022

    barbult said:

    This is what I think it means, but I am not an expert:

    Make Unique creates a new morph. Deltas Only modifies the vertex positions of an existing morph. "Deltas" means "changes" in vertex position. A morph is essentially a list of changes in the position of an object's vertices.

    Thank you! Very interesting... Let's say I'm modifying an existing pJCM as it is described in this tutorial pJCM Poses for Daz Studio - YouTube. You're saying that If I choose "Make Unique", I will create a new morph. But I am creating a new custom morph anyway. I am saving this new morph on my hard drive. Of course, I am giving my new morph the name of an already existing pJCM. Since I use "Reverse deformation - Yes", my new pJCM gets executed instead of the old one (as I undertand it). What's going to happen if I while following the procedure from the tutorial above choose "Make Unique" instead? Is my new pJCM going to behave differently? 

    Post edited by Eternal Force on
  • barbultbarbult Posts: 24,694

    I don't know enough about JCMs and pJCMs to answer your questions. Maybe someone else will come along with more experience. I know Catherine3678ab has worked with them.

  • Richard HaseltineRichard Haseltine Posts: 102,150

    If you want to modify an existing morph then you want Deltas Only, which would geenrally be the case witha JCM. If you are modifying the JCM created by AutoFollow make sure that the new version isn't set as a projection morph (in Parameetr Settings unless it has moved) as that would cause it to be be forgotten on save.

  • Eternal ForceEternal Force Posts: 301

    barbult said:

    I don't know enough about JCMs and pJCMs to answer your questions. Maybe someone else will come along with more experience. I know Catherine3678ab has worked with them.

    Thank you, Barbult! 

  • Eternal ForceEternal Force Posts: 301

    Richard Haseltine said:

    If you want to modify an existing morph then you want Deltas Only, which would geenrally be the case witha JCM. If you are modifying the JCM created by AutoFollow make sure that the new version isn't set as a projection morph (in Parameetr Settings unless it has moved) as that would cause it to be be forgotten on save.

    Thanks, Richard! I've just modified the whole bunch of JCMs created by AutoFollow. So far so good. I'm following the tutorial (I showed the link above). Never heard of Projection morph setting. OK, I am sticking to Deltas Only. smiley

  • Catherine3678abCatherine3678ab Posts: 8,382

    When I'm making my pJCMs, I'm making unique pJCMs hence I use the "make unique." [I zap the generated pJCMs] If I want to 'fix' an existing morph then as Richard mentions, it would be 'deltas only.' Whatever works ;-)

  • Eternal ForceEternal Force Posts: 301

    Catherine3678ab said:

    When I'm making my pJCMs, I'm making unique pJCMs hence I use the "make unique." [I zap the generated pJCMs] If I want to 'fix' an existing morph then as Richard mentions, it would be 'deltas only.' Whatever works ;-)

    Got it! Thanks, Catherine! 

Sign In or Register to comment.