VaM 1.x Hair collision in VR "POV ONLY" crash my FPS

[plopy]

I have a huge issue in VR, I cant use scene with atom having long hairstyle.
Because the moment the hair are close to the atom i pocess, my FPS are going to 1 digit.

For exemple if im viewing in VR a cowgirl sex scene while i pocess the male atom, the moment the female will bow to kiss "me" and her hair melt with my face, my FPS are dying instanly.

It started to do this several month ago, i tried to find a solution without sucess, for now i just give the girls bob hairstyle or ponytails, haha...

 

[SlimerJSpud]

Go look on the hub for the standard benchmark scene by MacGruber. Run that, and compare to others' results in the discussion thread for that scene. You may find your computer is a potato. Running the benchmark should tell you where the bottleneck is.

 

[random_user_9000]

That's normal. I get this too in VR. Hair is very expensive to render in VAM and for some reason eats more FPS if you get too close to it.
You only option are to lessen render cost of hair by:

• Reduce hair multiplie and curve densiity for characters hair. Remove hair parts one by one and see which affect most fps.
• Reduce MSAA setting. I find it hit FPS very hard when close to hair
• Reduce overall rendering resolution, similar effect as reducing MSAA

 

[plopy]

Hm... Guys I tried to explain but you probably didnt read pass my title?
I have constant 70+ FPS even with 3 atoms moving and long hairstyle.

The ONLY moment my FPS crash to 1 digit is when my headset in POV come in "contact" with hairs.
I can play with physic, use the virtual hand in long hairstyles, my FPS WONT crash or move from 70~, it ONLY when in POV my helmet goes in contact with the long hairstyle.

 

[plopy]

So nobody has any idea why the moment my headset comes close or in contact with an atom, my FPS drop so much? While my FPS were very good 30cm further...?

I suspect this is an issue with collision being simulated in POV for no reason, But why VAM would enable collision and simulating VR headset???
Why when im using virtual hands in hairs with sim and collision enabled my FPS are stable and good, but the moment my POV headet come in contact everything drop?

Makes no sense....

 

[random_user_9000]

I'm no expert but I try to explain it based on what I've experienced and read over the forum and discord over many years, but you probably didnt read pass my first sentence
But since youre so troubled by this small issue I try again.

Hair is expensive to render in VaM and its more like this -> the more % of the screen is covered by many hair strands, the more expensive render is and the lower your fps

If you still think collision is somehow the reason, just try experimenting on your own in desktop or VR mode.
Stay far away from Person head -> record fps -> get very close so over 50% of screen is hair -> record fps.
You'll see a big fps drop on getting close. Now go to Physics menu for all your hairs and disable Sim and Collision. You can also disable "head collider" in Settings > VR 1. Repeat the fps experiment. You'll see a similar big fps drop. So no, collision isn't the issue, hope you can confirm that on your own.