3DS MAX 2018 Hair&Fur problem during rendering

[yellimages]

Hi to all,

i finalize styling on my characters beard, which i make using 3dsmax's native hair and fur tool.
In the viewport everything looks fine for the whole timeline/animation, since i dont use dynamics and beard just follows the head's movement.
BUT when i RENDER the animation beard gets destroyed/distorted after some frames.... it looks like a strong wind blows from one direction and destroys it...
Then when i stop render, beard looks distorted in the viewport also.

When i render with scanline using "geometry" option selected in the rendering parameters of Hair&Fur, everything works good.
The problem appears when i use the "mr" option selected in the rendering parameters of Hair&Fur and render with Vray.

Any ideas ?

thanks in advance for your precius time.

[tashko.zashev]

Hi,

Could you please send us that scene or a part of it to see if we can replicate this issue here?

[yellimages]

Hi, here is the link. https://www.dropbox.com/s/1a0ycnjzn4...GROUP.zip?dl=0

Try to render the range 132 / 158 and check the beard...

thanks in advance

[tashko.zashev]

Thanks for the scene.

The hair behavior in render and viewport is very strange indeed but the issue is definitely not in our plugin. The combination of Hair&Fur and Point cache seems to break the hair placement for mr prim mode which can be a known issue or new one for 3DS Max I can't be sure about that. However, baking the animation to keys only for the emitter works better according to my tests so you can try that as a workaround.

[yellimages]

Thanks for your reply. I ll try get rid of point cache...

thanks again.