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Poser - OFFICIAL F.A.Q (Last Updated: 2024 Dec 23 7:38 pm)



Subject: Parent a Prop to a Group?


Ricky_Java ( ) posted Tue, 17 January 2006 at 11:20 AM · edited Wed, 25 December 2024 at 1:54 PM

I'm a Poser 6 animator, and have a problem keeping breast jewelry props in the proper position on V3 while she walks and moves. I parent the jewelry to the appropriate collar, but because I add jiggle, bounce, and sway to Vickie's breasts based on magnets, such as WyrmMaster's, I have to manually adjust the translation and rotation parameters of the jewelry in every frame of an animation. It's almost enough to take the fun out of jiggling! I have an idea: If I could parent the jewelry prop to a named group of polygons on the front surface of V3's breast, the prop would stay in position during animation. Is this possible? Perhaps spawning a morph target from the front of the breast is a better idea... Any thoughts or suggestions would be greatly valued. Thanks, Richard


ockham ( ) posted Tue, 17 January 2006 at 11:46 AM

Attached Link: http://ockhamsbungalow.nstemp.com/Python/NoPoke2.zip

The basic problem is that parenting is based on the 'bones' or joint locations, while morphs are an entirely separate operation. You might try my No-Poke script, in its newer incarnation. It should be able to adjust the prop so that it stays outside of the *actual* position of the breast mesh. I'm not sure how well this will work in an animation. NoPoke generates a morph target, which you'll probably have to adjust across the frames.

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ockham ( ) posted Tue, 17 January 2006 at 11:48 AM

PS: If NoPoke seems to work in general, I can probably rig up an alternate version that adjusts the prop at each frame while rendering, without using a MT.

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lesbentley ( ) posted Tue, 17 January 2006 at 1:06 PM

I know very littel about moddling, but wonder if the easiest way might be to add the jewelry to the collar groupes in a renamed copy of the V3 obj file, then use a copy of the cr2 that pointed to this obj. Of coures the standard morphs would on longer work on those groupes. Just a thought. Another idea. If all the deformation in the collars is based on morphs made with magnets, then it should be posible to include the jewelry as deformTargets (Add element to deform) when you make the morphs. Then you could spawn morphes in the jewelry and slave them to the morphs in the breasts using ERC. The problem with this idea is that any bends of the collars due to joint rotation may also throw the jewelry out of alignment with the breasts.


ockham ( ) posted Tue, 17 January 2006 at 1:12 PM

"include the jewelry as deformTargets (Add element to deform)" EXCELLENT idea!!!!!

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Miss Nancy ( ) posted Tue, 17 January 2006 at 1:38 PM

Richard, where can one see your animations? the jewelry thing sounds like an interesting problem, and I'd heed les and ockham, since doing a series of joints out from the collar to the point of attachment (parent) of the jewelry, and converting the jewelry to a cr2 file (with its own joints and IK) would be rather tedious.



dadt ( ) posted Tue, 17 January 2006 at 2:09 PM

The answer may be in the cloth room. There is a Dynamic pearl necklace in Freestuff by Stegy which works perfectly.


svdl ( ) posted Tue, 17 January 2006 at 2:21 PM

dadt may be right. Adding all the vertices to the constrained group will do the job, though the jewelry then will deform a little. You could also add all vertices of the jewelry to the rigid decorated group - except for three vertices on the outer edge of the jewelry prop, those should be constrained. That MIGHT work. The best solution using the cloth room would probably the following: - select her collar; - fire up the Grouping tool; - create a new group; - select all polygons on the collar that will be (partially) covered by your jewelry prop; - create a prop from this group; - export the prop plus the jewelry as Wavefront .OBJ; - reimport this prop; - make the "breast part" of the prop fully transparent; - parent the prop to your figure's collar; - create a new cloth simulation; - assign all vertices of the "breast part" of the prop to the Constrained group; - assign all vertics of the "jewelry part" of the prop to the Rigid Decorated group; - and calculate. The jewelry should now keep its shape AND follow the breast on all its movements and deformations.

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Ricky_Java ( ) posted Tue, 17 January 2006 at 4:34 PM

Thanks to everybody for responding. It reminds me that I've learned most of what I know about Poser right here in these Renderosity threads.

I don't want to impose on Ockham's Python expertise, and I'm not comfortable enough with magnets to try Les's insightful suggestion, but I've played around just enough with grouping in the Cloth Room that dadt's and svdl's proposed process seems the most suited to my mid-level skill set.

Thanks svdl for listing the proposed method in a step-by-step format. I will give it a try and report back with my results.

Thanks, and Happy Jiggling,
Richard


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