Invert Textures?

Forums: Invert Textures?
A public forum for discussing and asking questions about the Octane for Unity Alpha

Moderator: ChrisHekman

Invert Textures?

Postby kapitastic » Wed Nov 07, 2018 3:43 pm

kapitastic Wed Nov 07, 2018 3:43 pm
Hello again.
I'm having a problem when I try to invert a texture in octane.
As you can see, I've tryed with two different textures, an octane native noise and a rgb texture .png file.
I don't really know whats going on here, so any aclaration will be highly apreciated hahaha...
By the way, octane invert for the noise texture doesn't flip the texture horizontally.


Images:

Image

Image

Is there a specific way to do this? an operation node or something similar? I hope you can give me a hand with this :)

Thank you!
kapitastic
 
Posts: 20
Joined: Wed Mar 14, 2018 2:27 pm

Re: Invert Textures?

Postby Xhed » Thu Nov 08, 2018 9:47 am

Xhed Thu Nov 08, 2018 9:47 am
I would suggest posting this question in the General Discussion forum, as it concerns Octane itself more than it does the Unity integration.
- Rick
User avatar
Xhed
OctaneRender Team
OctaneRender Team
 
Posts: 239
Joined: Wed Jul 10, 2013 10:27 pm
Location: Breda, The Netherlands

Re: Invert Textures?

Postby bepeg4d » Thu Nov 08, 2018 11:59 am

bepeg4d Thu Nov 08, 2018 11:59 am
Hi,
I have tried in Standalone 4RC7, but the Invert option seems to work as expected to me:
1A58B78A-25C7-4FF1-93E3-DCCDFA0B35CA.jpeg

DEF539B3-3CA9-4186-A0ED-A521D630DE00.jpeg

5293C567-A2C9-4710-8B3C-E42669FCBCBF.jpeg

C2438525-1E9D-42D9-9C36-E04752C3C146.jpeg

ciao Beppe
User avatar
bepeg4d
Octane Guru
Octane Guru
 
Posts: 9940
Joined: Wed Jun 02, 2010 6:02 am
Location: Italy

Re: Invert Textures?

Postby kapitastic » Thu Nov 08, 2018 3:08 pm

kapitastic Thu Nov 08, 2018 3:08 pm
Thank you for testing it in the standalone version, so the problem seems to happen only in unity octane or what? Should I post this thread in general forum as xhed sugested?

Any idea?

Thank you again :)
kapitastic
 
Posts: 20
Joined: Wed Mar 14, 2018 2:27 pm

Re: Invert Textures?

Postby ChrisHekman » Fri Nov 09, 2018 1:05 pm

ChrisHekman Fri Nov 09, 2018 1:05 pm
kapitastic wrote:Thank you for testing it in the standalone version, so the problem seems to happen only in unity octane or what? Should I post this thread in general forum as xhed sugested?
Any idea?
Thank you again :)


These are two different behaviors.
For the noise texture, I suspect the explaination is that the gamma is applied after the invert. So if you have a gamma of 1, you will get the behavior you expect.
In your example it is 1.5

The normal texture has a similar problem, but in reverse. The gamma is applied to the texture first, and then the invert is applied.
If you set gamma to 1, you get similar results as photoshop.

This is an Octane feature, so general discussion would the right place to ask about it.
ChrisHekman
OctaneRender Team
OctaneRender Team
 
Posts: 968
Joined: Wed Jan 18, 2017 3:09 pm

Re: Invert Textures?

Postby kapitastic » Wed Nov 14, 2018 11:21 am

kapitastic Wed Nov 14, 2018 11:21 am
Thank you, I see the problem now, thank you very much for answering!
kapitastic
 
Posts: 20
Joined: Wed Mar 14, 2018 2:27 pm

Re: Invert Textures?

Postby Onthug » Fri Nov 23, 2018 11:57 am

Onthug Fri Nov 23, 2018 11:57 am
These are two different behaviors.
For the noise texture, I suspect the explaination is that the gamma is applied after the invert. So if you have a gamma of 1, you will get the behavior you expect.
In your example it is 1.5

The normal texture has a similar problem, but in reverse. The gamma is applied to the texture first, and then the invert is applied.
If you set gamma to 1, you get similar results as photoshop.

This is an Octane feature, so general discussion would the right place to ask about it.


Thank you for this answer, I had the same problem with invert textures
Onthug
 
Posts: 1
Joined: Fri Nov 23, 2018 9:40 am

Return to Octane for Unity


Who is online

Users browsing this forum: No registered users and 5 guests

Thu Mar 28, 2024 2:54 pm [ UTC ]