Additive Color vs Subtractive Color

[iwpsurf]

Well done.

[ERICTHEAZNSKATER]

is there anywhere i can download the files so i can demo this for my class?

[digitalArtform]

@ERICTHEAZNSKATER In the info section to this video (scroll down to the UPDATE 8/12/2011 section) I added some links to some pages on my web site that contain layered .psd files that can be downloaded and examined. They are not the exact ones from this video, but they may be useful. I may reconstruct and post the file from this video at some point, as well.

[1965Richie]

I wish the audio was a bit louder.

[shakilaart]

when i try to this tutorial the finished image is made

that is in grey scale.... why..? can somebody help me to do this

[digitalArtform]

@shakilaart If you begin with a red channel colored red, a green channel colored green, and a blue channel colored blue it will work. If your initial R, G and B images are just different colored versions of the same identical black and white image then it will form a grayscale image when you add them.

[georgbernier]

wow, this video is great, thanks to share it.

[faerieguts]

Can you talk more quietly next time, please?

[digitalArtform]

@faerieguts I was going to do the entire thing in Thermian like in 'Galaxy Quest,' but cooler heads prevailed

[TheScanGroup]

Great video to help people grasp the basic concept of additive and subtractive color

[YayForPiggies]

thank you so much for this video! I really like watching this and it looks really cool when you add the colours together!!!

[proflob]

i love this man

[createproducti0ns]

great, i really like this video

very helpfull

[jjanossy]

Excellent and insightful video, makes great use of explanations along with demo of techniques in Photoshop. I have students in my college art technology class view this, it's better than an in-class lecture!

[danelovell]

Try holding the shift button when moving in this manner.

[ross710]

yea really soft dawg

[bucktheusa]

That's why I'm watching it, I'm just giving you the heads-up. Not to bicker of make you wrong.

You do excellent tutorials and have a very clear and concise voice.

Just kind of clarifying a few things for myself refresh my own memory since it's been 10+ years since I was in the biz.

No money in it. Shame.

[digitalArtform]

Thank you very much for the compliment, and for spending the time.

[bucktheusa]

Using multiply is just creating a colored mask on the two channel RGB seps you got from the other video.

Also it would be helpful if you used actual halftones or create a color halftone (with zoom or exaggerate size) of the image using that effect and then view each on it's own so people understand that the patterns of ink dots are what change the color based on actually overlapping or being in closer or farther proximity to eachother.

Not here to knock you. We're all here to learn.

[digitalArtform]

Halftone dots are irrelevant. Continuous tone filters of C, M and Y are fine. This is how color film works. It is composed of 3 analog layers of varying density that hold back light by percentages (that is to say, they multiply) White is clear in all three layers.

[bucktheusa]

Me again. Your additive color example doesn't work since in RGB if you combined 1+2 (R and G) all you would have is yellow (or parts of red and green) as indicated by the key at the bottom left.

By combining 1+2 you already have a nearly full color image which is not possible until blue can combine to create the intermediary colors. If your example was a true representation then the last image would just be a white knockout of the woman since they would all overlap create to make white.

[digitalArtform]

My RGB example is perfect. If you have a CRT monitor with the ability to disable the color channels one by one (by hitting switches or by pulling cables) you will see the same effect in action. The 3 layers will only blow out to white in a given location if each of the layers is already at 100% intensity in that location.

[sauty1]

can barely hear you

[digitalArtform]

I see that. After I crank the youtube volume I have to turn my speakers up, too. I'll try to do better next time.

[oceanrose12]

how did u separate the colors in the first place? this is great!

[BinaryReaper]

This was very informative thank you!