I've thought long and hard about how to highlight red, after struggling with it myself. I sacrificed some sleep and sanity for this. I hope it is as helpful to anyone reading it as it was to me writing it.
https://tyler.provick.ca/?p=974
Painting Red
Re: Painting Red
Good one! You express what people often forget - it's way too easy to make it pink!
Well said about saturation/desaturation and warming the highlights
Well said about saturation/desaturation and warming the highlights
-- Mahoń
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Back in the garage with my bullshit detector
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Re: Painting Red
One of the best articles I have read in a while: I should really try out the highlighting and shading techniques mentioned there...
Thanks a lot for the link!
Thanks a lot for the link!
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Hosea
Re: Painting Red
Guys,
I tried to read all text already and I still dun get those saturation/desaturation etc things, can anyone help me a bit more? I really dun get it, even I read the whole piece of it..... sad...
I tried to read all text already and I still dun get those saturation/desaturation etc things, can anyone help me a bit more? I really dun get it, even I read the whole piece of it..... sad...
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Coyote
Re: Painting Red
Saturated colours appear bright. Desaturated colours appear muted.
The colour of an object is light reflected off the surface.
Colour is formed from different wavelengths of light. Let's say Red, Green, Blue. Other colours are combinations of these wavelengths. Red and Green light makes yellow.
Click to see full-sized image
Lets say white is 100% Red, 100% Green and 100% Blue. When colour is only one wavelengths, 0% Red, 100% Green, 0% blue, we say it is saturated and it looks bright.
When there are multiple wavelengths close together, it becomes desaturated and dull, muted or pastel. So, 100% Red, 0% Green, 100% blue gives us magenta, which looks duller than either Red or Blue. It is still very bright because the difference between the 0% Green and the 100% Red and Blue is still big. Add more green and the colour will get duller, even if it's a bright green.
Adding white adds wavelengths of all the colours. Mix 50:50 pure Green (RGB 0-100-0) with white (RGB 100-100-100) brings the amount of red and blue up (RGB 50-100-50) and desaturates the colour. Mixing with black would bring you to (RGB 0-50-0) which is less saturated than pure green, but more saturated than with white because it has less other wavelengths of light.
Why add white to highlight? All surfaces can absorb certain amounts of light. Green surfaces absorb more red and blue, reflecting green light. However, if you keep increasing the amount of light the surface stops absorbing green after a while and starts reflecting a combination of green and white light. Also, surfaces refract light depending on how much surface area they have. Thus powdered glass is white, not clear, because it is refracting lots of white light because it has lots of surface area.
I hope that helps. the handspring link above is crucial to my understanding of light and colour and was a major reference (now that I think of it, I will credit it in the article when I get home)
It can be hard to get through as the author is very technical, but it really helps understand how colour works and how it doesn't.
For example, glazing doesn't change the colour of the paint beneath it because the light passes through one colour to reach the other. Individual pigments are not transparent. if you used a microscope you would see the different colour of pigments sitting side by side, like looking at newsprint up close. Instead, I think glazes work because when paint is mixed the different sizes and densities of pigment settle at different rates when it dries. A glaze gives you a better and more controllable distribution of paint colours.
The colour of an object is light reflected off the surface.
Colour is formed from different wavelengths of light. Let's say Red, Green, Blue. Other colours are combinations of these wavelengths. Red and Green light makes yellow.
Click to see full-sized imageLets say white is 100% Red, 100% Green and 100% Blue. When colour is only one wavelengths, 0% Red, 100% Green, 0% blue, we say it is saturated and it looks bright.
When there are multiple wavelengths close together, it becomes desaturated and dull, muted or pastel. So, 100% Red, 0% Green, 100% blue gives us magenta, which looks duller than either Red or Blue. It is still very bright because the difference between the 0% Green and the 100% Red and Blue is still big. Add more green and the colour will get duller, even if it's a bright green.
Adding white adds wavelengths of all the colours. Mix 50:50 pure Green (RGB 0-100-0) with white (RGB 100-100-100) brings the amount of red and blue up (RGB 50-100-50) and desaturates the colour. Mixing with black would bring you to (RGB 0-50-0) which is less saturated than pure green, but more saturated than with white because it has less other wavelengths of light.
Why add white to highlight? All surfaces can absorb certain amounts of light. Green surfaces absorb more red and blue, reflecting green light. However, if you keep increasing the amount of light the surface stops absorbing green after a while and starts reflecting a combination of green and white light. Also, surfaces refract light depending on how much surface area they have. Thus powdered glass is white, not clear, because it is refracting lots of white light because it has lots of surface area.
I hope that helps. the handspring link above is crucial to my understanding of light and colour and was a major reference (now that I think of it, I will credit it in the article when I get home)
It can be hard to get through as the author is very technical, but it really helps understand how colour works and how it doesn't.
For example, glazing doesn't change the colour of the paint beneath it because the light passes through one colour to reach the other. Individual pigments are not transparent. if you used a microscope you would see the different colour of pigments sitting side by side, like looking at newsprint up close. Instead, I think glazes work because when paint is mixed the different sizes and densities of pigment settle at different rates when it dries. A glaze gives you a better and more controllable distribution of paint colours.