Looks trippy, nice. Thanks for checking out the tool btw!
>>>this is only maya's nhair and xgen, right?
Yes
>>>regarding collision thing fxhair also provide option for self collision http://www.fxgear.net/en/technology/vfx/fxhair.php but anyway this is a expensive effect.
Wasn't aware of that, results look quite good. I hope
this will make it into a commercial product some day
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>>>>i saw you use an uv help, and i checked it's made the strands flow to normal direction of emiter and relaxing also. This is a reason you using that, right?
Yes it works similar to the bendy horse I saw on your vimeo page. This way you need less guides because the interpolated hair follows the surface more closely.
>>>>you can see on my video below when i plug the uv helper in a yellow hair it make some strand flip into another direction.
I noticed that too, posted an update (1.52) to fix that. Never found what caused it but rearranging something in a set data node seems to have done it
>>>>>Addition, how i can using "external guide cloud" ( this one i think you mention it's only for simulation ) it's only act like a deformer and not change my hair grooming right?
External guide cloud is a guide source, like a curve group. You would simulate the guides and plug it into the "external guide cloud" input. You can then interpolate more stands from the simulated cloud (I added a simulation demo see post#1 plus a little fix so the compound doesn't go red (1.52)
It wouldn't work inside one cloud because you can't emit points anymore after simulation
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