Yeti + VRayHairMtl 3

[sersia]

Hi,

It is just simple test. I think Yeti is quite working nice with V-Ray.







Thank you.

Note:
Lee Perry Smiths awesome free head model:
Infinite, 3D Head Scan by Lee Perry-Smith is licensed under a Creative Commons Attribution 3.0 Unported License.

[vlado]

Nice

Best regards,
Vlado

[sersia]

Thank you Vlado!!

But I did nothing for the image. V-Ray did everything for that!!!! It is the reason what I have to use V-Ray!!!!!
Thanks once again.

[sersia]

Some more images.

[dougWilkinson]

nice renders
VRayHairMtl3 is shockingly realistic looking...

[sersia]

Thank you dougWilkinson.
I think so too. I think that VRayHairMtl3 is very good for realistic Hair.

[bigbossfr]

Hi,
I am testing Yeti (last) + VRay Maya (last stable).
I have big render time with VRayHairMtl3.
With a simple VRayMtl, i have a good render time, with VRayHairMtl3 (diffuse to 0), i get x6-7 render time.

Anyone have some tricks ?

Thanks

[vlado]

It depends on your other settings (e.g. GI); what are they? Also, is the material transparent?

Best regards,
Vlado

[bigbossfr]

It depends on your other settings (e.g. GI); what are they? Also, is the material transparent?

Best regards,
Vlado

Setting are :
ADMC : 2-10, 0.010
GI :
- BF : 8, depth 1
- LC : sub : 1000, sample size : 0.020, retrace thr : ON

Transparency is black.

Thanks

[sersia]

Hi,

I am not sure whether it helps you or not, just for a reference.

Adaptive DMC
Min: 2
Max: 30
Threshod: 0.01~0.005

Gamma: 2.2
Don't affect colors

GI
BG: Subdivs 8
LC: Use retrace threshod 1

with default VRayHairMtl3, i7-2630QM CPU 2.00GHz, Win7


11m 25s

35m 37s

39m 28s

with preset: Red(shiny)

4h 49m 55s

[bigbossfr]

Hi,

I am not sure whether it helps you or not, just for a reference.

Adaptive DMC
Min: 2
Max: 30
Threshod: 0.01~0.005

Gamma: 2.2
Don't affect colors

GI
BG: Subdivs 8
LC: Use retrace threshod 1

with default VRayHairMtl3, i7-2630QM CPU 2.00GHz, Win7

[ATTACH=CONFIG]11661[/ATTACH]
11m 25s
[ATTACH=CONFIG]11662[/ATTACH]
35m 37s
[ATTACH=CONFIG]11663[/ATTACH]
39m 28s

with preset: Red(shiny)
[ATTACH=CONFIG]11664[/ATTACH]
4h 49m 55s

I don't know if there is something wrong but :
- default vrayHairMtl : you have 39 min
- preset red (shiny) : 4h49. You have x7 render time.

?

[griml0ck]

Do you use "opague GI" in the hair shader? that speeds up the render time quite a bit. For final animation you need quite a lot of sampling.
My final render settings are:
filter Gaussian "3"
dmc min 5 max 100
threshold 0.007
primary brute force (default settings)
secondary: LC 2500 subdivs with "use light cache for glossy rays"

For previews I just lower the dmc and LC values.
It is also recommended to use DR when rendering lookdev of hair to speed things up. We use 4 extra machines while doing lookdev, which helps a lot.

Hope this helps.

Cheers J

[bigbossfr]

Do you use "opague GI" in the hair shader? that speeds up the render time quite a bit. For final animation you need quite a lot of sampling.
My final render settings are:
filter Gaussian "3"
dmc min 5 max 100
threshold 0.007
primary brute force (default settings)
secondary: LC 2500 subdivs with "use light cache for glossy rays"

For previews I just lower the dmc and LC values.
It is also recommended to use DR when rendering lookdev of hair to speed things up. We use 4 extra machines while doing lookdev, which helps a lot.

Hope this helps.

Cheers J

I use "opaque shd/gi" , "simplify gi".
AA filter : cook variable" : 2.5
ADMC : 2-10
GI ray distance to 10.
Thr : 0.010
GI BF : 8 - 1
GI LC : 1000 subdivs, "use light cache for glossy rays", "use retrace threshold"

I have 1h17 min by frame with VRayHairMtl3.
It is a lot.

I don't know where i can win some time.

[griml0ck]

How much hair are you rendering? Maybe you can show a frame so its easier to understand what we are talking about here. The longest frame I ever had to render was 5h, but that was with heavy motionblur and so much hair it used 24 gig of ram / frame. But the asset could take 15m/frame depending on distance from camera. Usually we end up with 1-2h/frame in production quality. Those settings you are using will not work on an animation btw. Then you need the settings I posted in my last response.

[bigbossfr]

How much hair are you rendering? Maybe you can show a frame so its easier to understand what we are talking about here. The longest frame I ever had to render was 5h, but that was with heavy motionblur and so much hair it used 24 gig of ram / frame. But the asset could take 15m/frame depending on distance from camera. Usually we end up with 1-2h/frame in production quality. Those settings you are using will not work on an animation btw. Then you need the settings I posted in my last response.

I don't know how many hairs i have. I have setted the verbose of Yeti to all, but no hair count... I don't know where to see this.
I have tested my setting in animation and it works. No flick or other.

Here an image of my current test :