Here's a technique to capture that lens flare effect we see all the time in photography.
|Traffic Lights, gouache over casein, 5 x 8 inches|
Note the gradation of the dark values from the brightest spot behind the middle of the utility pole. It becomes gradually darker in the lower left and right corners.
Here's the photo that inspired me (of the new museum in Washington). Note how there are really two gradations going on: the darks go from orange in the vicinity of the sun to near-blacks in the shadows on the left. There's a second gradation going on in the sky.
|Underpainting for lens flare effect|
The day before I go out in the field, I paint an arbitrary gradation for the dark areas. I use casein, which dries with a "closed surface," which means it won't reactivate when rewet. It is fully dry when I head outdoors.
I don't yet know what subject I'll be painting over it, but I want to choose something with a lot of forms intersecting the sky.
The video shows how I paint the sky as an opaque layer over the underpainting. Whenever I need to add the wires and other details back into the scene, I try to match the underpainting color.
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