Sean Meighan

Welcome => Do You Need Help? Post it here => Topic started by: jlowe on October 26, 2017, 06:52:08 PM

Title: Dimming curves / gamma adjustment
Post by: jlowe on October 26, 2017, 06:52:08 PM

I have searched the forum all over. I find posts with people talking about adjusting those items, but no clear answer on what the values should look like for rgb. Or, could anyone tell me the format of a dimming curve file? Like, what values should be entered into it? How should it be formatted?

Thanks!

Title: Re: Dimming curves / gamma adjustment
Post by: keithsw1111 on October 26, 2017, 08:34:34 PM

Most people don't change them at all

Some suggest a gamma of 2.0 is more realistic but others complain it screws some colours up.

Dimming is easier just select the -Ve number that dims the model enough for you.

Title: Re: Dimming curves / gamma adjustment
Post by: JonB256 on October 26, 2017, 08:57:49 PM

I set my gamma to 2.0 and my oranges (pumpkins) look much better.

Title: Re: Dimming curves / gamma adjustment
Post by: jlowe on October 27, 2017, 07:29:36 AM

I found this site based on some searching around, which talks about the gamma adjustment specifically for 2812 pixels. Thought I would plug in these values to make a custom curve, but I can't figure out how to do it. If all else fails, I will try the gamma 2 value.

http://rgb-123.com/ws2812-color-output/ (http://rgb-123.com/ws2812-color-output/)

Title: Re: Dimming curves / gamma adjustment
Post by: keithsw1111 on October 27, 2017, 01:01:39 PM

The gamma value he seems to be using is 2.22 or 1/0.45.

Title: Re: Dimming curves / gamma adjustment
Post by: jlowe on October 27, 2017, 05:52:08 PM

Quote from: keithsw1111 on October 27, 2017, 01:01:39 PM

The gamma value he seems to be using is 2.22 or 1/0.45.

Ahh, I saw 1/0.45 and my mind just read Greek. Thanks for helping me out.

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