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Poser - OFFICIAL F.A.Q (Last Updated: 2024 Nov 15 9:11 am)



Subject: Collision detection


craftycurate ( ) posted Fri, 01 June 2007 at 9:37 AM · edited Fri, 15 November 2024 at 1:31 PM

Is there an easier way to stop figures overlapping? When trying to arrange 2 characters in a joint pose I seem to spend most of the time finetuning positions of fingers etc so they look natural - no gap or overlap.

Are there are any addons to help with this? And what is "Collision detection"? It doesn't seem to stop me overlapping figures.

Any help appreciated!

Thanks
Richard


Cage ( ) posted Fri, 01 June 2007 at 2:21 PM · edited Fri, 01 June 2007 at 2:24 PM

I've always understood that the collision detection which can be turned on for the preview is supposed to just give some sort of graphic display of where in the scene meshes intersect.  I've never been able to get it to do anything, and I'm not altogether sure what the point is, really.  There isn't even a hook for such detected intersections in Poser Python.  I suspect it's just another partially implemented idea that was never fully developed.

Kind of a crummy answer, sorry.  I hope someone else has a better one.  This should probably just say "kicked and bookmarked."  :-P

===========================sigline======================================================

Cage can be an opinionated jerk who posts without thinking.  He apologizes for this.  He's honestly not trying to be a turkeyhead.

Cage had some freebies, compatible with Poser 11 and below.  His Python scripts were saved at archive.org, along with the rest of the Morphography site, where they were hosted.


stormchaser ( ) posted Fri, 01 June 2007 at 2:40 PM

Sorry, I don't have an answer to this but I would like to know what others say as I have thought about using this part of Poser before but never got round to using it. It has to be useful in someway, I was thinking if it could be used for when morphing hair around the hands etc.



craftycurate ( ) posted Fri, 01 June 2007 at 2:50 PM

Thanks ... I've discovered you can switch on "Collisions on" for a scene, and also for each object that will collide. 

However, this is too simple e..g. if you want to wrap one object around another e.g. fingers around a handle and so on.


EddyLoonstijn ( ) posted Fri, 01 June 2007 at 2:57 PM

file_379067.jpg

The trick is to: 1. Set "collission detection" in the properties of the could be colliding objects/bodyparts 2. go to the popup menu of the camera window and check either: collision on. (the collision prevents more than just a bit of penetration)


EddyLoonstijn ( ) posted Fri, 01 June 2007 at 2:59 PM

file_379068.jpg

... or "show intersections". The penetration is allowed but shown as a red mark in the black penetrating object.

Hope yiu understand now how it can be used.


SYNTRIFID ( ) posted Fri, 01 June 2007 at 3:01 PM

Sorry, don't have an easier method than just manipulating the poses by hand. - Collision detection is a dynamic function and therefore only works on dynamic objects, Poser only has cloth and hair.

You could, if you really wanted to experiment (but mind you this kind of experimentation could take way longer than posing by hand to achieve desired results)  fake some soft body dynamics by applying cloth dynamics to the hand of a figure.

Set the drape frames to zero and have only 2 or 3 simulation frames, you may could get the hand to collide with the chosen body part without becoming to limp and out of shape. 

You would also need to make sure the points along the loop connecting the hand to the forearm were a constrained group as well as where all the finger joints connect with one another so they wouldn't all seperate and start falling to the floor.

As I said, this would be time consuming in its own right, but theoretically it sould work.

Hey! His nose is dry! ... Someone should lick it,  just in case. - Diego


SYNTRIFID ( ) posted Fri, 01 June 2007 at 3:04 PM

Quote -
The trick is to:

  1. Set "collission detection" in the properties of the could be colliding objects/bodyparts
    2. go to the popup menu of the camera window and check either: collision on.
    (the collision prevents more than just a bit of penetration)

 

Hmmmm - this is a new one on me - I'll have to check into this myself!

Hey! His nose is dry! ... Someone should lick it,  just in case. - Diego


ratscloset ( ) posted Sat, 02 June 2007 at 12:11 AM

This does work, but it only works when moving the selected Body Part. So if you move an Arm, the Hand and fingers can still penetrate, but if you either back them out or work your way down it works very well.

ratscloset
aka John


SYNTRIFID ( ) posted Sat, 02 June 2007 at 8:19 AM

Quote - This does work, but it only works when moving the selected Body Part. So if you move an Arm, the Hand and fingers can still penetrate, but if you either back them out or work your way down it works very well.

 

Yeah - I did some messing around with this. And yes it does work but you do need to do everything in the procedure in a specific order. Still it's a good feature to have on board.

Hey! His nose is dry! ... Someone should lick it,  just in case. - Diego


menschtx ( ) posted Sat, 02 June 2007 at 2:17 PM

how do you get two figures into one space?


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