Ok, thanks for the extra info.

I've only been playing with the dynamic side of DH for a few weeks now, but it's clear to me that this feature has been long neglected, probably since so few people ever used it much (or were able to use it). Although I did use DH hair in P8 I never used to run sims as I usually experienced similar to what you're describing (although my sytem never actually crashed).

I just followed your process, and started to run the sim on Syney's hair. I'm using PP2012 64 bit on a pretty fast system with Win7, and although it is running and not actually causing Poser to crash, it is painfully slow - and I mean painfully slow. I'm only on the first of multiple hair groups but I'd expect it to take several hours at least to get through all the groups and who knows what I'll end up with.

Sydney's hair is grown from fairly high res skullcaps - so there are lots of guide hairs (it doesn't matter what your density settings are at this stage as this isn't taken into account in the sim - only the guide hairs). This is usually ok in the upright because the hairs arn't colliding with much, but when it gets to a point in the sim when they are, that's when things slow down. Lots of guide hairs to calculate collisions for. Add to this 20 verts per hair per group (all adding to cost of collisions) and at least 150 frames to calculate for, it's no surprise an earlier 32bit version of Poser running on even a decent system might struggle.

This may not be a bug per-se (not saying that for sure in your case). Just a sadly neglected and slow hair room.

What I would suggest is this, just to test:

• reduce the number of frames in your animation to 30-60

• delete some of the hair groups completely from the skullcap

• reduce the verts per hair of each remaining group to 5 - this is low but it might help identify if your system is just struggling with the sheer weight of calculations.

See if you at least can run a sim.

It may also be that the sheer number of keyframes in your animation is also adding to the problem. Not being an animator I can't really say.

 

 

PoserPro2014(Sr4), Win7 x64, display units set to inches.

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