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Accurate colors with opacity

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Charter Member · 2228 posts

Accurate colors with opacity – image 1

Is there some kind of formula to get the proper color when using it at X% opacity, for example A sample of NYSW yellow from a photo is Yellow, But when I paint this on a RGB 128 grey template, at 50% opacity it becomes Nasty I can tweak with the color replacer in photoshop, screw with the hue, lightness, etc.. But can't set RGB values that way, and thus every time I do a NYSW unit it's a different color, Something i'm not not proud of

Shawn Kenselaar, shawnssk@yahoo.com
Screen Shot Forum Mod; Repainter for TKW & YLW
The NYO&W is Gone, But never forgotten!!!Accurate colors with opacity – image 2

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Charter Member · 58 posts

RE: Accurate colors with opacity

It's called the Grecian formula .
How about just choosing the shades you like, and
then writing down the six letter-number combos in Photoshop?

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Charter Member · 2228 posts

RE: Accurate colors with opacity

Accurate colors with opacity – image 3

Because It's not accurate that way, Having never seem a NYSW unit myself (The HORROR!!! oh the HORROR!!), I have no clue what shade of yellow to make it, So i'd like to settle on a definite color, can't do that with out knowing a formula to get paint samples to work with opacity

Shawn Kenselaar, shawnssk@yahoo.com
Screen Shot Forum Mod; Repainter for TKW & YLW
The NYO&W is Gone, But never forgotten!!!Accurate colors with opacity – image 4

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Charter Member · 1097 posts

RE: Accurate colors with opacity

Accurate colors with opacity – image 5

Every real CSX unit I see is a different shade of grey, yellow, and blue. . . Why are you using the opacity function anyway? Why not just paint it the "correct" color to begin with? Usually that's what I do to get the whole thing uniform, and then if it's too intense, I go and desaturate the whole texture map (or a section of it using the various marquee tools) a tad. Then I go and do the other maps as well, using the same amount of desaturation to keep things the same color.

---------Clayton---------Accurate colors with opacity – image 6

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Member since Apr-9-03 · 588 posts

RE: Accurate colors with opacity

One method I sometimes use to copy a sample of the desired colour from another skin, and paste it as a new layer in the texture I'm working on. Make sure the layer containing the "sample" is on top and it's opacity is set to 100%. Then I do some experimenting by tweaking the colour of the layer contining the "problem" colour, and changing the hue, saturation, contrast, and brightness settings of both the base texture and the colour layer, until the "problem" colour matches the colour in the "sample" layer. Usually this method yields good results if used correctly.Jonathan Nikiforovs.
Milepost 180, CP Belleville Sub.

Repainter for Yonder Locomotive Works.Accurate colors with opacity – image 7

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