Hi,

Here is a screen test I rendered out. The hair is doing strange things; its sort of twinkling and fluttering around. The 'do' was finished in V12 and I had not looked at it for some months -- I don't remember this happening before but I don't think its a 'problem' with V13 as others have created hair which does not do this.

Does anyone have information or suggestions on how I can stop this? BTW, this was rendered to tga files then compressed using Cleaner. The weirdness was present in the tga image sequence.

Thanks!!
Rusty

I had a simimlar result in V!2. The way I got a round it was increasing the scale of the whole model by something like 500 percent. It got rid of the "quivers" or "flickering".

Yikes! I hope there is another solution. I'm looking at 6 character models with hair and hundreds of props all modeled to scale. Perhaps it would be simple; I just enlarge every model and prop in the chor and re-stage the set. Perhaps all poses will scale okay. Perhaps all the actions will still work. Perhaps all materials, decals, particle systems will scale correctly when the model is scaled up. Perhaps even lights within models will scale up falloff automatically. Perhaps Mr. Murphy will take the year off. Perhaps rendering will not take too much longer as each model is scaled up by AM for each frame. Perhaps.

I PRAY there's another solution. :-)

Rusty

Scaling-up should not increase render times. But, from MY experience if you scale up a model the hair does NOT scale with it... so if you increase your model-size, and it's hair is,say, 27 cm length...the model will be larger, but it's hair will still be 27 cm...

Before I re-scale my entire project up, I'll use helmet hair or fall back to earlier versions of AM where this did not happen.

Rusty

I'ts definitely cleared up in V13. The link is to a wip of some hair Im working on in V13e. It's the same model (not scaled up) and groomed pretty similar to the one I did in 12. Wish I could find the v12 version where the bangs were doing that "quiver" thang.

Hair test

Hmm... of course I'm working in 13e and the example I originally posted was rendered in 13e so, it 'definitely' hasn't cleared up in my case. I tried multi-pass / no multi-pass, with alpha /without. I wonder if the movement is hiding the hair movement in yours. It could be any number of things or settings.

Could you possibly post the settings you are using.

Thanks!
Rusty

This is a break down of the steps I've taken so far,,

Hair Progress v13e

Outstanding! Thank you. Lots of differences between approaches -- somethings the same. Somewhere is the difference that causes mine to jump. You did not display the settings used for collision detection, was it default? Also did you use the new materals mahhair?


Cheers,
Rusty

Yes and yes , the col is default and the muhair shader is in there.

Dukeschen,

Well, I’ve compared our settings trying one after another – turning ‘Is Rod’ off reduced it some. Finally I moved ‘all’ of your settings except for length (so I could keep my hair style) and I still got the jumping and squiggles. So, what the heck, I moved the length over (now, except for color and guide splines, I’ve got your hair). It looks like the jumping turns into that waving motion you had when the hair is longer which kind of makes sense – the waving doesn't look bad but really your hair should be still unless you have some motion or, a fan on it.

The squiggles I fear maybe due to the width as it looks like an anti-aliasing problem that’s been talked about on the list – I think Martin zoomed in on exactly what it was and, if memory serves, blurring is the only fix. Why I don’t see it on yours is perhaps because I have two colors and you have one (or multi-colors very close to each other).

Its all very slippery and nowhere I have found a silver bullet. I see some TWO hair that is two tone (pun) maybe I’ll try to get the setting they are using.

At any rate all this has given me some ideas on a few more things I can try. I have reported this – it shouldn’t be this much trouble to fix.

Thanks again for the help.

Cheers,
Rusty