make hair appear on both sides of a plane

 
 
 
Posted by:ldotchopz
Data created:9 January

I have and animated characters wings which are one sided geo. can ornatrix appear on both sides without adding something like a shell modifier to it?

Hey, @ldotchopz

Charly here

Nice to meet you and thank you for your question

I haven’t personally encountered such a task, so I’ve forwarded your question to the developers. Once I get a response—either they’ll reply here themselves, or I’ll share what they’ve written.

Thank you and have a great day
Best regards,
Andrew.

___

I'm 3D grooming Artist since 2016

My portfolio

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No, you need a shell modifier, or at least a copy of the faces for the other side.

Ivan Kolev (Software Developer, EPHERE Inc.)

E-mail: ivan.kolev at ephere dot com

Discord: ikolev

Yes, as @IvanKolev said:

We cannot reference a face as a root surface position while also flipping its normal. We'd need an extra "flip normal" flag in <code>SurfacePosition</code> struct and potentially deal with myriad of issues which stem from that.

Even in our projects, we most often created full-fledged meshes for the wings or simply duplicated the face to flip its normals and then began working. But most commonly, it’s a complete wing mesh, like in this project of mine: https://www.artstation.com/artwork/XgLPaL for IXOR VFX.

Just remember this rule as the correct topology. =)

Thank you and have a great day
Best regards,
Andrew.

___

I'm 3D grooming Artist since 2016

My portfolio

YOUTUBE

No, Ornatrix generates hair based on the surface normals of the geometry, so with one-sided geometry, the Buckshot Roulette hair will only appear on the side where the normals are facing. To have hair appear on both sides without a Shell modifier, you’d need to duplicate and flip the normals manually or use a normal trick in shading.

I haven’t personally encountered this task before, so I’ve forwarded your inquiry to the development team. Once I hear back—either they’ll respond here  Italian Brainrot Clicker directly, or I’ll share their reply with you.

Thanks again, and have a great day!