Hair Shader issues

Forums: Hair Shader issues
VIP Information, news and announcements regarding new Octane Render commercial products and releases.

Hair Shader issues

Postby andrey.krivulya » Sat Aug 22, 2020 9:30 am

andrey.krivulya Sat Aug 22, 2020 9:30 am
Hi, dear Otoy team.

win10, Octane Standalone 2020.1.4

So I found a strange issue in Hair Shader. Albedo texture doesn't work in Octane Standalone.

Video with the issue -> https://www.youtube.com/watch?v=F3A6k8iXTxo

ORBX -> https://bit.ly/2FOaqBx

The same in 3ds Max plugin...

Does this happen only on my side and I'm doing something wrong or this is a known issue? =)

Thank you and have a great weekend.

Best regards,
Andrew.
win 10 /64x Intel Core i9-11980HK - 64Gb RAM - 3080 Laptop - 16Gb VRAM - AERO 15 OLED YD

My youtube channel with 3d tutorials ----- >>>> https://www.youtube.com/c/AndrewKrivulya
User avatar
andrey.krivulya
Licensed Customer
Licensed Customer
 
Posts: 129
Joined: Wed Apr 06, 2016 6:15 pm

Re: Hair Shader issues

Postby linograndiotoy » Sun Aug 23, 2020 9:25 am

linograndiotoy Sun Aug 23, 2020 9:25 am
Hey Andrew,
Thanks for your report.
May I suggest you build a lighter scene showing the issue? A furry sphere would work. The scene you sent doesn't work properly on my system.
linograndiotoy
OctaneRender Team
OctaneRender Team
 
Posts: 1148
Joined: Thu Feb 01, 2018 7:10 pm

Re: Hair Shader issues

Postby wallace » Sun Aug 23, 2020 10:40 pm

wallace Sun Aug 23, 2020 10:40 pm
Looks like there is some issue with the albedo mode indeed, I will look into fixing that in 2020.1.

Here's a work around: plug in the same texture to the specular pin of the hair material
You do not have the required permissions to view the files attached to this post.
User avatar
wallace
OctaneRender Team
OctaneRender Team
 
Posts: 188
Joined: Sun Dec 18, 2016 10:38 pm

Re: Hair Shader issues

Postby andrey.krivulya » Mon Aug 24, 2020 2:18 pm

andrey.krivulya Mon Aug 24, 2020 2:18 pm
linograndiotoy wrote:Hey Andrew,
Thanks for your report.
May I suggest you build a lighter scene showing the issue? A furry sphere would work. The scene you sent doesn't work properly on my system.


Hi, Lino.

Ok. I will create a simple scene for you a little bit later. =)
win 10 /64x Intel Core i9-11980HK - 64Gb RAM - 3080 Laptop - 16Gb VRAM - AERO 15 OLED YD

My youtube channel with 3d tutorials ----- >>>> https://www.youtube.com/c/AndrewKrivulya
User avatar
andrey.krivulya
Licensed Customer
Licensed Customer
 
Posts: 129
Joined: Wed Apr 06, 2016 6:15 pm

Re: Hair Shader issues

Postby andrey.krivulya » Mon Aug 24, 2020 2:18 pm

andrey.krivulya Mon Aug 24, 2020 2:18 pm
wallace wrote:Looks like there is some issue with the albedo mode indeed, I will look into fixing that in 2020.1.

Here's a work around: plug in the same texture to the specular pin of the hair material


Ok. Thank you for letting me know =)

Reference from another render =)

Image

Soon I will create more simple scene and record a video to explain what we should improve in Octane =)
win 10 /64x Intel Core i9-11980HK - 64Gb RAM - 3080 Laptop - 16Gb VRAM - AERO 15 OLED YD

My youtube channel with 3d tutorials ----- >>>> https://www.youtube.com/c/AndrewKrivulya
User avatar
andrey.krivulya
Licensed Customer
Licensed Customer
 
Posts: 129
Joined: Wed Apr 06, 2016 6:15 pm

Re: Hair Shader issues

Postby andrey.krivulya » Sun Aug 30, 2020 8:40 am

andrey.krivulya Sun Aug 30, 2020 8:40 am
Hi, dear Otoy developers =)

So. As I promised, I prepared a less dense scene for your tests - https://bit.ly/2YP4Bdw

But I found a strange issue.

With this simple scene - albedo working as needed,

spec_simple_scene.jpg


but with dog - I have stange bug... Specular in this case didn't help.. Why?

spec_dog_scene.jpg


Thank you and have a great day

Best regards,
Andrew.
You do not have the required permissions to view the files attached to this post.
win 10 /64x Intel Core i9-11980HK - 64Gb RAM - 3080 Laptop - 16Gb VRAM - AERO 15 OLED YD

My youtube channel with 3d tutorials ----- >>>> https://www.youtube.com/c/AndrewKrivulya
User avatar
andrey.krivulya
Licensed Customer
Licensed Customer
 
Posts: 129
Joined: Wed Apr 06, 2016 6:15 pm

Re: Hair Shader issues

Postby Banti » Mon Oct 12, 2020 12:13 pm

Banti Mon Oct 12, 2020 12:13 pm
Has this bug been fixed by now? Because the Albedo mode still doesnt work for me (in the DAZ plugin) and the specular workaround also doesnt work...

Edit: Ok so this just getting weird now.

This is how the hair looks with only and HDRI:
hdri.png


And this is how it looks with 2 light planes (from above and the side):
planes.png


This is the material (IOR is default value 1.55):
material.PNG



Can someone tell me why this is happening?
You do not have the required permissions to view the files attached to this post.
Banti
Licensed Customer
Licensed Customer
 
Posts: 103
Joined: Sat Nov 16, 2019 9:45 pm

Re: Hair Shader issues

Postby Banti » Mon Oct 12, 2020 3:25 pm

Banti Mon Oct 12, 2020 3:25 pm
So the problem is definitly the light coming directly from above.

This image only has one light plane from above and i set the hair material IOR to 1.1, its still way to specular no?
top.png
You do not have the required permissions to view the files attached to this post.
Banti
Licensed Customer
Licensed Customer
 
Posts: 103
Joined: Sat Nov 16, 2019 9:45 pm

Re: Hair Shader issues

Postby wallace » Tue Nov 24, 2020 10:07 pm

wallace Tue Nov 24, 2020 10:07 pm
Hi,

Yes this issue should be fixed in 2020.2, but only after 2020.1.5.

May I ask for an orbx to confirm this, and also which octane version are you currently at?
User avatar
wallace
OctaneRender Team
OctaneRender Team
 
Posts: 188
Joined: Sun Dec 18, 2016 10:38 pm

Re: Hair Shader issues

Postby Banti » Thu Nov 26, 2020 10:41 am

Banti Thu Nov 26, 2020 10:41 am
wallace wrote:Hi,

Yes this issue should be fixed in 2020.2, but only after 2020.1.5.

May I ask for an orbx to confirm this, and also which octane version are you currently at?



This was rendered with the DAZ plugin 2020.1.5. I am not sure if i still have this particular scene saved but i will try to find it.
It should be noted that others on the DAZ plugin topic have pointed out that the issue might have been the fact that this hair is not "strand-based" but a transmapped one. Appearently the hair shader was intended for strand-based hair specifically and will cause problems if used on transmapped ones?

Does that mean after the fix it will work on non strand based hair too?
Banti
Licensed Customer
Licensed Customer
 
Posts: 103
Joined: Sat Nov 16, 2019 9:45 pm
Next

Return to Commercial Product News & Releases (Download here)


Who is online

Users browsing this forum: No registered users and 3 guests

Thu Mar 28, 2024 11:01 am [ UTC ]