While we reach for the hand sanitizer and hold our breaths, our Thursday drawing/painting class has been thinking about a different kind of Corona. We’ve been studying the effects of light, especially glow.
I was interested in exploring why some images seem to glow. Take the image above as an example. Why, if an all-white screen does nothing to harm our eyes, why does this particular image give us the sensation that we need to look away to prevent retinal damage? The light isn’t any brighter than plain white, yet it seems profoundly brighter.
I find this incredibly fascinating, and I’ve presented some theories of light to my Thursday “Drawing/Painting the Effects of Light” class. As is usual for my classes, they have responded with some fabulous results. Here are some of the ideas we’ve been playing around with, sparked by conversations with Carlos San Millan:
In a painting, an illusion of light can be made from any kind of contrast. The first most obvious contrast is light vs dark. The solar eclipse image is a good example. Most of the image is dark vs a bit of white, so there is a lot of contrast against the white. As an experiment, if I were to decrease the contrast by lightening the dark, the white suddenly doesn’t look as bright.
In the image above, it doesn’t look like I just lightened the dark. It looks like I also dimmed the light, but the white is still the same value. See the images below, where I’ve added a white circle for comparison to the moon shape. The white circle shows the moon shape is still the same white. It did not dim. By removing the contrast of dark, there appears to be less light.
So, dark makes light.
Let’s add another experiment: hard vs soft edges. I’ll take the same image that has a mix of hard edges (the crescent) and soft edges (the light flare). I’ll take away the soft edges using Photoshop’s “cut-out” filter. Take a look at what happens to the glow effect when I harden all the edges:
The glow effect decreases when the edges are all hard. Clearly soft edges are helpful to the effect. The original image on the left with some hard and some soft edges is working. But what happens if I take away the contrast of edges and make all the edges soft?
…I’m going to have to beg your forgiveness here, I used Photoshop brushes and I didn’t use them very well, so I kinda just made a big white fuzzy banana. The question is, does this big white fuzzy banana increase, decrease, or have no effect on the retinal damage fear you have looking at the original corona with the mix of hard and soft edges?
The big white fuzzy banana glows because of the soft edges, but it doesn’t look quite as bright as the original image. Fuzz banana falls short. So the combination of light vs dark, and hard vs soft edges are two kinds of contrast that produce the effects of light.
Here’s an example of a sketch by the League’s Siobhan Wilder. She applied hard vs soft edges, and light vs dark to produce the effects of light.
Next V. Note: Color Contrast and the effects of light
Do you find bright ideas like this interesting? Want to see what you can do with more ideas like this? Take an art class this spring. We have art, we have ideas, and we have hand sanitizer.
Yesterday’s challenge was to draw your left ear without looking at it. Sunday is observation day, so today the challenge is to draw your right ear, this time from observation. Challenge: draw your other ear Set up mirrors, snap a picture, zoom yourself, whatever it takes to get a look at that lobe. The first …
[image_with_animation image_url=”9446″ alignment=”” animation=”None” box_shadow=”none” max_width=”100%”] For the past couple quarters I’ve been teaching beginning figure drawing shorties. “Shorties” are Seattle Artist League shortened classes – shorter by hours, by weeks, or both. These are run like cardio exercise classes, fast paced and intensive, but short enough to not be too overwhelming. I’ve been adding …
I love it when a painting is all about the paint. Also color. I love it when a painting is all about the color. And pattern. I love it when a painting is all about the pattern. Aaaaaand texture. Abstract painting class: 7 Fridays for exploring paints for paint’s sake. Also color. And pattern. Aaaaaaand …
Richard Diebenkorn Diebenkorn was an American painter. His early work is associated with abstract expressionism and the Bay Area Figurative Movement of the 1950s and 1960s. His later work were instrumental to his achievement of worldwide acclaim. Wikipedia Born: April 22, 1922, Portland, OR Died: March 30, 1993, Berkeley, CA Artwork: Cityscape I, Ocean Park #54, …
Effects of Light (Part 1)
While we reach for the hand sanitizer and hold our breaths, our Thursday drawing/painting class has been thinking about a different kind of Corona. We’ve been studying the effects of light, especially glow.
I was interested in exploring why some images seem to glow. Take the image above as an example. Why, if an all-white screen does nothing to harm our eyes, why does this particular image give us the sensation that we need to look away to prevent retinal damage? The light isn’t any brighter than plain white, yet it seems profoundly brighter.
I find this incredibly fascinating, and I’ve presented some theories of light to my Thursday “Drawing/Painting the Effects of Light” class. As is usual for my classes, they have responded with some fabulous results. Here are some of the ideas we’ve been playing around with, sparked by conversations with Carlos San Millan:
In a painting, an illusion of light can be made from any kind of contrast. The first most obvious contrast is light vs dark. The solar eclipse image is a good example. Most of the image is dark vs a bit of white, so there is a lot of contrast against the white. As an experiment, if I were to decrease the contrast by lightening the dark, the white suddenly doesn’t look as bright.
In the image above, it doesn’t look like I just lightened the dark. It looks like I also dimmed the light, but the white is still the same value. See the images below, where I’ve added a white circle for comparison to the moon shape. The white circle shows the moon shape is still the same white. It did not dim. By removing the contrast of dark, there appears to be less light.
So, dark makes light.
Let’s add another experiment: hard vs soft edges. I’ll take the same image that has a mix of hard edges (the crescent) and soft edges (the light flare). I’ll take away the soft edges using Photoshop’s “cut-out” filter. Take a look at what happens to the glow effect when I harden all the edges:
The glow effect decreases when the edges are all hard. Clearly soft edges are helpful to the effect. The original image on the left with some hard and some soft edges is working. But what happens if I take away the contrast of edges and make all the edges soft?
…I’m going to have to beg your forgiveness here, I used Photoshop brushes and I didn’t use them very well, so I kinda just made a big white fuzzy banana. The question is, does this big white fuzzy banana increase, decrease, or have no effect on the retinal damage fear you have looking at the original corona with the mix of hard and soft edges?
The big white fuzzy banana glows because of the soft edges, but it doesn’t look quite as bright as the original image. Fuzz banana falls short. So the combination of light vs dark, and hard vs soft edges are two kinds of contrast that produce the effects of light.
Here’s an example of a sketch by the League’s Siobhan Wilder. She applied hard vs soft edges, and light vs dark to produce the effects of light.
Next V. Note: Color Contrast and the effects of light
Do you find bright ideas like this interesting? Want to see what you can do with more ideas like this? Take an art class this spring. We have art, we have ideas, and we have hand sanitizer.
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I love it when a painting is all about the paint. Also color. I love it when a painting is all about the color. And pattern. I love it when a painting is all about the pattern. Aaaaaand texture. Abstract painting class: 7 Fridays for exploring paints for paint’s sake. Also color. And pattern. Aaaaaaand …
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