Color Correction / Decrease contrast. [PARTIALLY SOLVED] Tweet

[sevengreen]

Hej.

the Contrast Setting of the Octane Color Correction Node doesnt work with the texture i plugged in.
No matter what value I set, it has no effect. Is my setup wrong ?

In the Modo Preview I simulated what I would have expected.

using:
Win 11 / Modo 16.0v.1 / Octane Plugin 2021.1.5.186 / Nvidia 512.59

kind regards

[PARTIALLY SOLVED]
The contrast setting in the plugin's ColorCorrection node [v2021.1.5.186] is used to increase, not decrease, the contrast, and goes from 0-1000.
If you want to learn more about reducing the contrast of a texture, you are encouraged to search the general Octane forum.(eg Octane Standalone 2021.1.5 release thread)

[face_off]

Hi

This look like an Octane render engine quirk. The Contrast goes up to 1000, where you should see a difference.

Thanks

Paul

[sevengreen]

Good to know. And yes, there is a slight difference. But what would the workflow look like to lower the contrast?

When I set the contrast to 0 in Modo, the image is basically flat.
I use this quite often to manipulate roughness/bump maps.

How would you translate that to Octane?

kind regards

[face_off]

Sorry for the late reply. You will need to ask these questions in the general Octane forum (suggest the Octane Standalone 2021.1.5 release thread).

Thanks

Paul

[sevengreen]

Thanks for the feedback anyway.

A) Could such information (0-1000 and for increase only) please be in the (plugin) documentation?
Would save me the trial and error and you answering my questions.

B) As a feature request, may I suggest that the contrast slider can also be used to decrease the contrast.
Same as the hue adjustment, from -1 to 1. where 0 is no correction.-1 decrease til flat, +1 increase till black&white.

thanks for taking the time

[face_off]

Thanks for the feedback anyway.

A) Could such information (0-1000 and for increase only) please be in the (plugin) documentation?
Would save me the trial and error and you answering my questions.

B) As a feature request, may I suggest that the contrast slider can also be used to decrease the contrast.
Same as the hue adjustment, from -1 to 1. where 0 is no correction.-1 decrease til flat, +1 increase till black&white.

thanks for taking the time

Thanks for the feedback.

a) The slider ranges are all automatically derived from the Octane Standalone SDK - so it's not actually specifically set by the plugin. I think at a practical level, documenting the ranges of every slider in the plugin might be overwhelming.

b) May I suggest posting this Feature Request in the Octane Standalone 2021.1.5 release thread, so the OTOY devs see it.

Thanks

Paul