100 published HDRIs at HDRI Hub carry the clouds tag, priced $8 to $99, at resolutions from 6144x3072 to 16000x8000. Overcast light spreads across the whole sky rather than coming from one sun position, so shadows soften and material color reads more evenly. They suit renders where a hard shadow would distract from the building or the material.
















































HDRI Hub lists 100 published cloudy-sky HDRIs, priced $8 to $99, at resolutions from 6144x3072 to 16000x8000. Examples include HDR 133 Road in Hills with Cloudy Sky, available up to 20k; HDR 136 Hill Top with Cloudy Sky; and HDR 159 Blue Evening Sky, a mixed sky with both clear patches and cloud cover.
Cloud cover scatters sunlight in all directions instead of letting it pass straight through, which is why an overcast HDRI produces soft shadow edges with gradual falloff rather than a sharp line. The effect is the same principle as a larger light source in a studio setup: the bigger and more diffuse the source, the softer the shadow it casts. Because there is no single strong sun direction, rotating a cloudy-sky HDRI changes the ambient color cast more than it changes shadow placement.