Color correction bug

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A. Operating System, including version (i.e. Win 7, OSX 10.11.2, Ubuntu 14.04, etc.)
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Color correction bug

Postby dawe » Wed Jun 14, 2017 9:27 am

dawe Wed Jun 14, 2017 9:27 am
I have flagged this bug before, long time a go and I start to think
for one, if you dont listen and correct bugs then just say it.
This bug have been her for years, in version 2.x as in 3 and I have reported it. it makes the color correction node worthless in many cases.
Just check the file
//Daniel
Attachments
Color corection node bug.rar
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Re: Color correction bug

Postby paride4331 » Wed Jun 14, 2017 10:34 am

paride4331 Wed Jun 14, 2017 10:34 am
HI dawe,
Color Correction node seems to work correctly, in Octane 2.25 and Octane 4.34;
It also works fine by importing a 2.25 file into 4.34.
Could you kindly tell me when color correction node is worthless?
Regards
Paride
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434.jpg
225.jpg
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Re: Color correction bug

Postby dawe » Wed Jun 14, 2017 11:44 am

dawe Wed Jun 14, 2017 11:44 am
If you take a look at the attached file you see my point.

//Daniel
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Re: Color correction bug

Postby dawe » Wed Jun 14, 2017 11:47 am

dawe Wed Jun 14, 2017 11:47 am
And as I see it on your attached images it behaves wrong.
It should not go darker as it does in your example
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Re: Color correction bug

Postby paride4331 » Wed Jun 14, 2017 12:45 pm

paride4331 Wed Jun 14, 2017 12:45 pm
Sorry, I don't suppose I understood just what it was you are saying.
Attached a screnshoot with your file (purple sphere).
I added two spheres, one with color correction node and one without, I do not seem to see any anomalies.
Regards
Paride
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1.jpg
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Re: Color correction bug

Postby dawe » Thu Jun 15, 2017 8:06 am

dawe Thu Jun 15, 2017 8:06 am
Hi again. So this is my last attempt to convince you even though I have done it before. The scene you show here is not the file I sent you or you have resettled the hue spiner from 1 to 0. To me it´s obvious that you don´t want to see the problem here. Why?

If you look at your rendered color spectrum its clear that the behavior of the green for example is not consistent.
Now i put up another image for you, showing what I mean.

I have advocating to use your software on to major projects during the last year and this is simply embarrassing. I can´t do this any more. Every time I try to report a bug, it´s as if you taking it as a complaint; I´m trying to help you out. not bring you down. I know I`am not right all the time and I don´t care I just try to help you, and me as a user in the end.

You might think that the tone here is out of line. well it´s because I think I have to spent to much time debating over this. And I think the otoy team are to ignorant. it should be in your interest to find a bug it seems to me you are mere protecting your investment.
I´m leaving you here and wont advise companies to use this software on a bigger project.

//Daniel
Attachments
Color_correction.jpg
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Re: Color correction bug

Postby paride4331 » Thu Jun 15, 2017 9:34 am

paride4331 Thu Jun 15, 2017 9:34 am
Hi dawe,
I apologize, for misunderstanding, with your last screenshot I understand what you refer.
I thought you referred about wrong match between material editor and Octane render viewport.
What you consider a bug can not properly be called this way; Octane Render is a render engine that works on a spectral color curve, not RGB values.
Color correction node is a transposition of a RGB color correction tool applied to a spectral range, so it is not always possible to have a match.
Therefore, the color correction mode can not be used with absolute precision, but you can think of it as an on fly modifier for images/textures etc.
I'm not a developer, but I think OSL can solve issues like this.
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Re: Color correction bug

Postby dawe » Thu Jun 15, 2017 10:16 am

dawe Thu Jun 15, 2017 10:16 am
Ok, but function that don´t work as 99.9% of the population expect, is either not working or it´s not named correctly.
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