I have a question that I hope someone here can help me with. I am using Poser Pro 2010 (64 bit version) with an i7 990x CPU, 24G of ram, and Windows 7 64 bit. When I run a render, I have it set to 12 threads because I have a 6 core processor and it pushes my CPU to 100% and does a beautiful job of rendering.

My question is about dynamic hair. I've noticed that when I calculate dynamic hair with collisions checked that my CPU usage never tops 12% (average is around 10%) and the whole thing runs slower than I think it should.  I'm wondering if I have missed a setting somewhere that would get it to use 100% of the CPU's ability.  Maybe there is a thread setting somewhere like the one in the pose page.

Any thoughts would be greatly appreciated.

I believe that turning collision on is only the first part of the process.  You need to turn collision on for the various parts of your figure as well.  I believe that by default the figures collision options are off.

If you select a boby part and get its properties window up, there should be a collision checkbox, you should select each body part that the hair is likely to come into contact with.

I think you will then see that the processors have to work harder :)

John

Or perhaps hair simulation is single threaded and there's nothing you can do about it.

I have the head, neck. both collars and both shoulders set to collision and I'm affraid that bagginsbill may be right.  If they only allow a single thread to run on the cloth room and the hair room I would consider that a serious flaw to their programming.  They already have the code to use multi-thread for rendering and I don't think it would take too much work for them to take the existing code and modify it to work with cloth and hair.  If they could get these things to work 10 times faster by just making a code change, I think it would really change the way people look at dynamic clothing and hair.

I just got some information from SM.  Apparently my system is working just as it should.  According to them, using more than one thread actually slows down the calculation for hair, but they will be trying to use more of CPU capability in the future.  :::sigh:::