Motion
Get Motion

ReferenceEffectsLight and lens

Lens dirt

Smudges on the lens, lit by bright parts.

Kind
Effect · Light and lens
Script name
lensDirt

Settings

SettingKindStarts atRange and notes
Dirt picturefileimage filenoneWithout one, Motion makes its own
Strengthstrengthnumber80%0% to 200%
What lights itthresholdnumber40%0% to 100%
Scalescalenumber1×0.5 to 4×
What every effect has

Every effect in a stack can be turned off, has an Amount and can be limited to part of the layer with a mask. They're listed on the effects page, and Effects and masks shows how to use them.