Flat light
Also known as: whiteout, flat light skiing
Diffuse, shadowless light on snow under overcast skies or fog, which wipes out texture and contrast so slopes and bumps become hard to read.
Updated
What it means
Skiers call it flat light, or a whiteout when it gets extreme. Clouds scatter the sun so evenly that nothing casts a shadow, and without shadows the eye loses the cues it uses to read the surface. Bumps, rollers and the lip of a drop all blur into one pale field.
Cameras suffer the same way. Footage shot in flat light looks grey and soft, the snow has no texture, and a rider can seem to float on nothing. Speed is harder to sense and a big landing can look like a small one. The idea overlaps with Overcast light, but on snow the effect is far stronger.
How it works in practice
Ride and film near trees, rocks or lift towers, which give the frame contrast and a sense of scale. Dark clothing on the subject helps too. Shooting with whatever light there is coming from the side brings back a little shape. Goggle lenses tuned for low light help you ride, not the camera.
In camera, a touch of positive exposure compensation keeps the snow white instead of muddy, and a flat profile leaves room to add Contrast later. Many filmers simply wait: flat light often breaks for a short spell as clouds move, and those spells produce the usable clips.
What to watch out for
Adding contrast in post brings back some punch but cannot invent texture that was never recorded. Over-processed flat-light footage starts to look crunchy, with noise in the snow and blotchy gradients in the sky. Grading every clip differently also makes the run look patchy once the clips sit side by side.
Auto exposure makes it worse in a different way. The meter sees a huge pale surface and settles somewhere in between, so each clip ends up slightly different. It is the same trap described under Snow exposure, made harder because there are no shadows to anchor the picture.
How RawClip handles it
RawClip picks clips by what happens in them, so a good turn or a fall in flat light can still make the highlight. It does not grade or add contrast, though, and grey snow stays grey. Shooting in the brighter breaks, or near trees, helps the finished video more than anything afterward.