Maya 2014 Mental Ray hair animation problem

[candypen]

I am making an animation film using maya 2014.

I created hair using curves and maya hair, and attached the hair to the bone of the characters body using P key.

The hair moves along the character just fine in the viewport and maya software render.

But when I use mental ray, for some reason the hair dosen't follow the character. Why is that? Please help

[steve_r]

mental ray should use exactly the same hair geometry as other Maya renderers, since it is querying the same data. Do you see this problem when you render a preview of a frame inside Maya ?

[kucharska.zuzanna333]

Hello,

did you menage to fix the problem?

[kucharska.zuzanna333]

I ma having the same problem. viewport is ok mental ray render shows hair dislocated. Please let me know if you menagae to fix it. 

[steve_r]

Do you have a scene, or steps to reproduce ?

[kucharska.zuzanna333]

I will send the scene and screen shots in few hours. Thanks! 

[kucharska.zuzanna333]

Hello,

My hair looks good on vieport during movement. I am attaching screen shots of the viewport and render. I parented hair system to the bone. 

[kucharska.zuzanna333]

I also tried Maya software and its fine..... I do not know what is wrong with mental ray.....

[steve_r]

Perhaps due to the way you animated ? Turn off "Render Settings / Options / Translation / Performance / Optimize Animation Detection" and render again.

[kucharska.zuzanna333]

I turned it off, and render the frame. The same issue. The animation is simple, she just turns her head.

[kucharska.zuzanna333]

I guess it must be mental ray sincemaya renderer is fine. Maybe there are other options in mental ray for hair?

[steve_r]

First of all, it's about what type of Maya hair solution you are using: Maya Hair, Paint Effects, xGen ? They are handled differently for mental ray. A scene would be nice.

[kucharska.zuzanna333]

Hello I am using Nhair. I want make them stiff and not being dynamic at the end, but they still moving. I am attaching the scene.

Thank You

[kucharska.zuzanna333]

Ok, The attachemement is too large, Can I send you on email message?  My email is : kucharska.zuzanna333@gmail.com.

Thank You for your time ! 

[Steve_Curley]

Make sure you Zip the scene (.ma and .mb files will not attach). Size limit is 5MB, if larger than that use a file sharing service such as dropbox.