Making all the hair pointing in the same direction with hair from mesh strips operator.

 
 
 
Posted by:Superboulu
Data created:22 January 2021

Hello, I have a problem finding a solution to this one. Maybe there is no solution but I would like to be sure.

 

I use hair from mesh strip operator on one big polygon object with multiples mesh strips but when I use the function "rotate selected strands" it only affects one of the multiple strips from the polygon object (I only have one direction arrow).

The thing is that all the hair doesn't go in the same direction. You can see in picture 01 when I apply a frizz operator with an amount ramp (to affect only the tip). The frizz happens on the top for some strips and at the bottom for others.

I would like to know if there is a workaround when you have only one polygon object with multiples strips to choose the same direction for all the hair.

 

The only solution I find is to convert polygon groups to objects. So I can have each strip separate. The problem is that it can represent almost 1000 strips that I have to import manually inside the hair from mesh strips operator.

And even when I do that, I still have a problem. Indeed each hair has a different direction. I use the "Rotate, Flip, Flow down...." but I always have some hair going in the bad direction that I have to rotate manually. And with some hairstyle that contains 4000 strips, it takes a lot of time. Picture 02.

The same thing, I don't know if there is a solution to accelerate this process.


Thanks for your time and sorry for my English I hope it's will be understandable :).

Have a nice day!


Attached Files:
Image 1Image 2

Hi,

Have you tried rotating them by UVs? That should work assuming that all the strips have UVs. 

Anyways, you should be able to select and edit the direction of each strip individually inside Hair from Mesh Strips. We will look into this. Thanks for the report. 

Jeordanis Figuereo (Product Designer. EPHERE Inc.)

Turns out this feature is already in progess. 

Jeordanis Figuereo (Product Designer. EPHERE Inc.)

Great!

Thanks for the information Jeordanis.

No, even when I separate each strip, selected them all in the hair from mesh strips operator and rotating them by UV. I still have some strip pointing in the wrong direction (even with a clean UV for each strip).
The only solution is to come back and rotate them manually.

And concerning the one big polygon object with merged multiples mesh strips inside. Nothing happens with the rotate button. Only one random strip move.

I can't wait to see this feature implementing. Thanks for your help.

Are all the UV islands flowing in the same direction? 

Or you can just send me the object. I can try to find a workaround. 

Jeordanis Figuereo (Product Designer. EPHERE Inc.)

Hi Jeordanis, 

Yes, I made a test and set the UV in rizomUV in order to have them flowing in the same direction. See the picture.

No problem, here the .obj.

Thanks a lot for your help.


Attached Files:
Image 1
>BANG_EXAMPLE_ORNATRIX.obj (3195748 bytes),

Hi Jeordanis.

Did you have time to check, any luck with a workaround? Or somebody else.

In any case thanks a lot for your time!

Hi,

No workaround is needed. It seems to work fine here:

See all the strands flowing in the same direction. 

All your UVs follow the same direction, so you just need to set the correct direction based on UVs and click Rotate all Strands:

 

The documentation will be updated with this information. 

Jeordanis Figuereo (Product Designer. EPHERE Inc.)

Indeed it was simple as that.

I still need to separate each strip and import them one by one but it works perfectly once I update my version of Ornatrix. Do you know a method to import every strip all at once in the hair from mesh strips operator? Instead of clicking on each one.

Thanks a lot for your time it was really helpful!

I actually used your object, which is a single object. Added Hair from Mesh Strips to it and flipped the arrows as show above. It's all one object. 

 

 

Jeordanis Figuereo (Product Designer. EPHERE Inc.)

As requested, strip selection has been added to the next nightly build:

Jeordanis Figuereo (Product Designer. EPHERE Inc.)